annu al repor t 201 3-201 4 - gestar
Transcription
annu al repor t 201 3-201 4 - gestar
ANNUAL REPORT 2013-2014 Goddard Earth Sciences Technology and Research Studies and Investigations ACKNOWLEDGEMENTS The GESTAR Team.................................................................................................5 GESTAR STAFF Achuthavarier, Deepthi Anyamba, Assaf Aquila, Valentina Barker, Ryan Beck, Jefferson Bell, Benita Belvedere, Debbie Bensusen, Sally Bindschadler, Robert Bridgman, Tom Brucker, Ludovic Brunt, Kelly Buchard-Marchant, Virginie Burger, Matthew Cede, Alexander Celarier, Edward Chang, Yehui Chase, Tyler Chern, Jiun-Dar Cheung, Samson Cho, Naeyong Cohen, Jarrett Colombo, Oscar Corso, William Cote, Charles Damoah, Richard De Lannoy, Gabrielle J. M. De Matthaeis, Paolo Diehl, Thomas Draper, Clara Duberstein, Genna Eck, Thomas Errico, Ronald Fitzgibbons, Ryan Follette-Cook, Melanie Gallagher, Dan Ganeshan, Manishan Garner, Robert Gassó, Santiago Gatebe, Charles Gautam, Ritesh Girotto, Manuela Gong, Jie Graham, Steven Grecu, Mircea Gupta, Pawan Ham, Yoo-Geun Han, Mei Handleman, Michelle Hanson, Heather Holdaway, Daniel Humberson, Winnie Hurwitz, Margaret Jentoft-Nilsen, Marit Jethva, Hiren Jiang, Le Jin, Daeho Jin, Jianjun Johnson, Leann Ju, Junchang Kekesi, Alex Kim, Dongchul Kim, Hyokyung Kim, Min-Jeong Korkin, Sergey Kostis, Helen-Nicole Kowalewski, Matthew Kucsera, Tom Kurylo, Michael Ladd, David Lait, Leslie Lamsal, Lok Laughlin, Daniel Lawford, Richard Lee, Dong Min Lee, Seung Kuk Leidner, Allison Lentz, Michael Lewis, Katherine Li, Feng Li, Xiaowen Liang, Qing Liao, Liang Lim, Young-Kwon Lipschultz, Fredric Liu, Junhua Lyu, Chen-Hsuan (Joseph) Malanoski, Mark Malespin, Charles Marchant, Benjamin Margolis, Hank McBride, Patrick McGrath-Spangler, Erica McLean, Debbi Meyer, Kerry Miller, Kevin Mohammed, Priscilla Monroe, Brian Mounirou Torre, Ally Norris, Peter Olsen, Mark Osmanoglu, Batuhan Pan, Xiaohua Pasolli, Edoardo Patadia, Falguni Peng, Jinzheng Perez-Ramirez, Daniel Phillips, Jackie Potter, Gerald Prive, Nikki Radcliff, Matthew Randles, Cynthia Rault, Didier Reale, Oreste Retscher, Christian Rousseaux, Cecile Sayer, Andrew Schiffer, Robert Schindler, Trent Selkirk, Henry Sharghi, Kayvon Shi, Jainn Jong (Roger) Sippel, Jason Smith, Sarah Soebiyanto, Radina Sokolowsky, Eric Southard, Adrian Stanley, Thomas Starr, Cynthia Steenrod, Stephen Stein-Zweers, Deborah Stoyanova, Silvia Strahan, Susan Strode, Sarah Suarez, Max Sun, Zhibin Swanson, Andrew Taha, Ghassan Tao, Zhining Teinturier, Samuel Tian, Lin Trapp, Cindy Ungar, Stephen Unninayar, Sushel Utku, Cuneyt Veselovskii, Igor Vikhliaev, Yury Wang, James Ward, Alan Weaver, Kristen Weir, Brad Wen, Guoyong Wiessinger, Scott Witmer, Stu Wright, Ernest Xu, Hui Yang, Weidong Yang, Yuekui Yao, Tian Yasunari, Teppei Zeng, Xiping Zhang, Qingyuan Zhang, Yan Zhou, Jiansong Zhou, Yaping Ziemke, Jerald Administrative Staff Arens, Jeff Baird, Steve (Dalnekoff) Smith, Julie Foster, Sarah Houghton, Amy John, Sharon Kannon, Stacey Maginnis, Beth Morgan, Dagmar Queen, Lynette Richardson, Linda Samuel Kerr, Elamae Technical Research................................................................................................6 Code 555 Code 586 Code 606.2 Code 610 Code 610.1 Code 610.2 Code 612 Code 613 Code 614 Code 615 Code 617 Code 618 Code 699 Microwave Instrument Technology Branch.......................................6 Science Data Management Branch.............................................7 High Performance Computing..........................................................7 Earth Sciences Division....................................................................7 Global Modeling And Assimilation Office.....................................14 Global Change Data Center..........................................................22 Mesoscale Atmospheric Processes Laboratory.............................24 Climate And Radiation Laboratory................................................28 Atmospheric Chemistry And Dynamics Laboratory......................34 Cryospheric Sciences Laboratory..................................................49 Hydrological Sciences Laboratory...................................................50 Biospheric Sciences Laboratory.....................................................58 Planetary Environments Laboratory................................................61 Delivering the Message....................................................................................63 Code 130..........................................................................................................................63 Code 606.4 Scientific Visualization Studio..................................................................74 Global Science & Technology.......................................................................................79 Code 160 Office of Education.......................................................................................82 Technical Editor Amy Houghton Graphic Design Erin Carver Products............................................................................................84 Student Engagements and Education/Public Outreach..............................85 Awards.........................................................................................88 Acronyms.........................................................................................................91 SDO’s Jewel Box Sun. Image Credit: T. Bridgman, G. Duberstein TABLE of CONTENTS Letter from GESTAR Director..............................................................................4 LETTER from GESTAR DIRECTOR The GESTAR TEAM Magnetospheric Multiscale Mission (MMS) spacecraft; Image Credit: T. Chase GESTAR MANAGMENT TEAM June 10, 2014 We are pleased to offer this third NASA Goddard Earth Sciences, Technology, and Research (GESTAR) Cooperative Agreement Annual Report for the period 11 May 2013 – 10 May 2014. NASA awarded GESTAR to the team of Universities Space Research Association (USRA), Morgan State University (MSU), Johns Hopkins University (JHU), I.M. Systems Group (IMSG), Institute for Global Environmental Strategies (IGES), and Ball Aerospace for a period of five years (2011-2016). Last year, we welcomed Global Science and Technology (GST) to our team. As we passed our halfway period-of-performance milestone this past year, GESTAR continued to be among major NASA Goddard Space flight Facility partnerships. During Year-3, the number of GESTAR tasks grew approximately 22 percent from our second year. This report summarizes multidisciplinary efforts of GESTAR-affiliated researchers, technologists, students, visitors, and staff. We describe accomplishments for the past year and technical progress in all research areas identified in the GESTAR Annual Research Program Plan, submitted to NASA on 31 July 2013. Within the report and its appendices are: a) abstracts and papers published by GESTAR-affiliated staff; b) GESTAR-affiliated presentations at conferences, seminars, and workshops; c) education and public outreach engagements by GESTAR-affiliated staff; d) awards received by GESTARaffiliated staff; e) engagement of GESTAR-affiliated staff in reviewing/advising/ committee participation activities, and; f) travel/meeting support provided by GESTAR to NASA. This past year, everyone at GESTAR worked diligently with our NASA sponsors/ collaborators to ensure success of critically important projects that support NASA’s mission in Earth Sciences and beyond. Their efforts have resulted in many substantive accomplishments, highlighted in this report. Our sincerest thanks go out to all for their commitment and professionalism. We look forward to applying our knowledge and experience to the upcoming year to ensure GESTAR continues to exceed all of our expectations. William Corso Joseph Whittaker (Associate Director – Morgan State University) Darryn Waugh (Associate Director – Johns Hopkins University) Le Jiang (Associate Director – IMSG) 4 | GESTAR Annual Report 2013 - 2014 GESTAR Director: Dr. William Corso Associate Director: Dr. Darryn Waugh, JHU Associate Director: Dr. Joseph Whittaker, MSU Associate Director: Dr. Le Jiang, ISMG Business Manager: Ms. Dagmar Morgan Founded in 1969, Universities Space Research Association (USRA) is an independent nonprofit research corporation that conducts basic and applied research and operates programs and national facilities for government and industry, many of which are in support of NASA. USRA currently manages 20 programs and facilities that employ more than 400 scientific, technical, and professional staff. With 105 university members, USRA provides a unique and special value that other research organizations do not. Only PhD-granting universities in Earth and space sciences with demonstrated outstanding research abilities are eligible for membership in USRA. USRA’s mission is to advance Earth and space sciences and exploration through innovative research, technology, and educational programs, and to develop and operate premier facilities and programs by involving universities, the private sector, and governments. Founded in 1876 as the first research university in the United States, The Johns Hopkins University (JHU) is one of the leading research institutions in the nation. JHU is composed of nine academic divisions, including Arts & Sciences, Education, Engineering, the School of Public Health, plus JHU Applied Physics Laboratory. The Krieger School of Arts and Sciences is the home of the Department of Earth and Planetary Sciences. A major focus within this department is global change science, with active research groups in atmospheric, oceanic, and hydrospheric sciences as well as planetary geodynamics. The department maintains state-of-the-art design and engineering facilities, as well as laboratories for high performance computing and large-scale data analysis that are also being used for Earth system science. JHU’s Whiting School of Engineering consists of faculty who possess experimental, computational, robotic and modeling capabilities. Additionally, faculty at the School of Public Health are involved with the application of Earth system science and remote sensing to the study and teaching of public/environmental health. Morgan State University (MSU), founded in 1867, is one of the nation’s premier Historically Black Colleges and Universities (HBCUs). The University offers a comprehensive program of studies at both the undergraduate and graduate levels. Morgan State has continuously served the community with distinction while meeting the educational needs of an increasingly diverse society. Designated as Maryland’s Public Urban University, MSU will continue its prominence in Maryland’s educational future. In many fields, particularly in engineering and the sciences, MSU accounts for large percentages of degrees received by African-Americans from Maryland institutions. At the graduate level, it awards doctoral and master’s degrees in several selected fields. The University has made a major commitment to academic excellence, investing substantial resources to enhance its research infrastructure, and stimulate research development in a broad range of disciplines, especially STEM. In addition to the Clarence M. Mitchell, Jr. School of Engineering complex, MSU has the Estuarine Research Center, the Richard N. Dixon Science Research Center, a stateof-the-art research facility that provides space for specialized research laboratories in physics, chemistry, and biology, and the modern Murphy Fine Arts Center. I.M. Systems Group (IMSG) has over 15 years of providing environmental, scientific, technical, and I support to the US government as well as environmental services to government agencies in Africa and Asia. Over 60% of its workforce has advanced degrees with over 100 PhD researchers. IMSG is NOAA’s largest support service, with its largest concentration of researchers and support scientists in the Satellite Applications Research Center and the NWS Environmental Modeling Center. Rounding out the GESTAR Team are Ball Aerospace and Technologies and The Institute for Global Environmental Strategies (IGES). GESTAR Management continues to work to identify appropriate, GESTAR-affiliated activities in which they may become meaningfully engaged. GESTAR Annual Report 2013 - 2014 | 5 TECHNICAL RESEARCH CODE 555: MICROWAVE INSTRUMENT TECHNOLOGY BRANCH Scheduled for launch in October 2014, NASA’s Soil Moisture Active and Passive (SMAP) Mission is the first of a series of Earth Science Decadal Survey missions. This mission will provide global measurements of soil moisture and freeze/thaw state using Lband radar and radiometry. Dr. Priscilla Mohammed (sponsor: J. Piepmeier) is working with a collaborative team at NASA Goddard to develop the L1B TB algorithm which converts radiometer data into calibrated estimates of brightness temperature. The effort includes research and development of radio frequency interference (RFI) detection and removal algorithms and prototype instrument algorithm code for the L1B TB algorithm which is part of ground processing. Data in the reference and reference plus noise diode radiometric states (calibration data) are used to compute antenna temperatures referenced to the feedhorn. In these states, the radiometer is isolated from the energy collected by the antenna via a switch. In most cases RFI is isolated from this data; however, at extremely high levels, RFI can leak through the switch and contaminate these data values resulting in inaccurate calibration. As a result, the algorithm was written to handle this by including functions to detect and remove RFI from the calibration input data. Results from flight model testing of the radiometer instrument revealed the presence of 1/f noise in the data. The baseline algorithm met requirements; however, the prototype code for the calibration algorithm was modified to investigate whether the 1/f noise impact could be reduced, and several calibration algorithms were used on test data in the analysis to determine the best possible solution. As a result, the instrument team altered the radiometer switching scheme in order to reduce the 1/f noise in the radiometer data, and the method of data calibration was modified, and the TA calibration in the L1B_TB algorithm was reworked to incorporate these changes. Changes were made to the previous prototype code as well as an additional function written with about 250 lines of Matlab code; subsequently, the new prototype code was submitted to JPL for conversion to the production version of the algorithm. Dr. Mohammed began work on writing tools in Matlab for use during the calibration/validation period for SMAP after launch. Data will need to be analyzed in order to update various ancillary files to be used in process6 | GESTAR Annual Report 2013 - 2014 Credit: Jinzheng Peng ing as well as to trend and monitor the SMAP instrument. She wrote a script in Matlab to read the HDF5 files which the Science Data System will produce; this script will be used in subsequent tools. Over the past year, she and her colleagues have completed a Level 1A product checker, which plots various science data and engineering telemetry points from that file for trending. Several scripts and functions were written to ingest large amounts of data for analyses. Data are binned and global plots of brightness temperatures as well as kurtosis and RFI level can be produced. The SMAP cal/val tools completed will be demonstrated in a rehearsal. Dr. Jinzheng Peng (sponsor: J. Piepmeier) works in a collaborative team developing NASA’s Soil Moisture Active/Passive (SMAP) radiometer. Work involves researching and developing prelaunch and post-launch calibration theoretical bases, plans and activities, and data reductions. He is specifically responsible for developing the SMAP L1B correction algorithms, the SMAP Level 1 brightness temperature forward simulator, and calibration/ validation tools. The SMAP L1B correction algorithms will obtain the Earth surface brightness temperature from the calibrated and RFI-free antenna temperature. Unwanted emissions from the Sun, the Moon, the galaxy, atmosphere and the Earth in the antenna sidelobe need to be removed from the radiometer measurements, and the effects of the atmospheric attenuation and Faraday rotation to the radiometer measurement need to characterized and corrected. These correction algorithms successfully passed the SMAP science algorithm review in September 2013. The SMAP Level 1 brightness temperature forward simulator is a major risk-reduction asset for the SMAP radiometer L1B algorithm development. Currently all of the effects of the unwanted sources (except RFI) and propagation effects depicted in Figure 1 can be simulated. Dr. Peng is working on the simulator development and generating data for the SMAP radiometer L1B algorithm. Cal/Val tools are developed in order for cal/val activities to be able to assess the precision and calibration stability of the instrument and to evaluate the accuracy and quality of the data products generation by the science data software (SDS). Dr. Peng developed several cal/val tools, one being the simplified SMAP L1B forward brightness simulator. In conjunction with TA Counts simulator, which simulates the radiometer output with given antenna temperature and the L1A shell file, the SMAP simulator can generate simulated L1A data product to test the radiometer L1B SDS, which generates L1B data product. These simulated L1A and L1B data products can be used to test all other cal/val tools. In addition, the simplified SMAP L1B forward brightness simulator will be used by the external calibration and drift correction cal/val tool, which Dr. Peng also is developing. CODE 586: SCIENCE DATA MANAGEMENT BRANCH Dr. Alexander Cede (sponsor: K. Blank) performs EPIC stray light analysis and incorporates optical modeling of EPIC (Earth Polychromatic Imaging Camera). He obtains and organizes all of the laboratory data for EPIC derived by Lockheed during the EPIC refurbishment, identifies missing parts of the Lockheed measurements, analyzes the Lockheed data for EPIC pixel to pixel uniformity, and delivers documentation and examples of applying the inversion showing a successful reduction in stray light to each of the 10 EPIC radiance channels. He has identified work remaining to be done while EPIC is on-orbit and obtaining data, and conducted a lunar calibration analysis using a “lunar smear” technique. Dr. Cede analyzes the problem of EPIC viewing the Moon with the shutter open as the EPIC field of view sweeps across the lunar surface (e.g., from east to west). By using existing lunar data (e.g., from LRO), he attempted to obtain an absolute calibration of each of the corresponding LRO wavelength channels (6 out of 10 EPIC filter channels). A procedure is being developed for the remaining 4 channels based on partial lunar sweeps consistent with avoiding overexposure of the CCD. Version 5 of the EPIC L1a processing software was finished; this version performs 8 of a total of 15 correction steps needed to convert the EPIC raw images (L0) into calibrated radiances (L1a). The base for this effort was a careful analysis of EPIC’s out-of-CCD blooming, read wave effect, dark current behavior, enhanced pixels effect, and latency effect. Dr. Yuekui Yang (sponsor: K. Blank) works on developing an algorithm that is suitable for generating RGB images from data observed by the DSCOVR satellite. He also works on developing techniques for a data quality check for the mission. Dr. Yang developed software tools for RGB image study. With MODIS data as a proxy, he has developed a suite of code to perform atmospheric Rayleigh correction, image enhancement, RGB image display and output. The code can also resample the image into DSCOVR resolution. Rayleigh correction is needed for generating sharper RGB images. Dr. Yang conducted research on atmospheric Rayleigh correction methods: two Rayleigh correction methods have been tested, including scaling the reflectance at the red, green, and blue channels and a two-layer model originally developed by the MODIS rapid response team. Results show that the MODIS method produces better images. Additionally, Dr. Yang conducted research on potential methods for DSCOVR data quality check. Several indices are defined for this purpose, including channel ratios and cloud height indices. Radiative transfer calculations are performed in order to quantify the valid value range of these indices. Data values that are out of the valid range can be defined as bad data. Dr. Yang has delivered the first version of the RGB image processing algorithm package to the DSCOVR Science Operation Center. The software package is written in FORTRAN; it reads the future DSCOVR L1B data and generates the ready-todisplay images. Data is processed based on whether a pixel is for the earth, the moon or space. CODE 606.2: HIGH PERFORMANCE COMPUTING Dr. Gerald Potter (sponsor: P. Webster) assists the NCCS with deployment of the ESGF portal and the publication of model and observational data. He also works to help with development of appropriate analysis software for climate models. This past year has brought progress with the reanalysis for model intercomparison projects. He and his colleagues have successfully obtained, converted, evaluated and published three major reanalyses in the ana4MIPs project. This has proven to be an extensive project and an outgrowth of the obs4MIPs project. Dr. Potter has also helped with the testing phase of the ultra-scale visualization for climate model data analysis (UVCDAT) tools, in particular the NASAcontributed DV3D module. He has given numerous presentations to NOAA, NASA, and DOE groups to demonstrate the value of 3D visualization in climate science. He will continue to search for relevant reanalysis products that will enhance the NASA MERRA products as well as provide the wider scientific community with standardized level-4 data sets for climate model improvement. CODE 610: EARTH SCIENCES DIVISION Mr. Charles Cote (sponsor: K. Mohr) performs a wide variety of tasks. This past year, Mr. Cote completed a draft of the 2013 Atmospheric Research Report, which is now being formatted and edited. This report covers the 2013-year activities across all elements of research carried out in the various Laboratories. It addresses major activities such as flight mission studies and development, field campaigns, modeling, education and outreach, and scientific publications. This report will be printed for distribution and posted on the atmospheres webpage at atmospheres. gsfc.nasa.gov, along with previous years’ reports. For the 2014 GESTAR Annual Report 2013 - 2014 | 7 report, he has begun to collect material and write various sections. Mr. Cote also reviewed Monthly Science Highlights submitted by laboratory scientists. The highlights are distributed monthly to Headquarters and other selected scientists and organizations. Each highlight represents a topic from each of the three Atmospheric Laboratories and the Wallops Support Office. Items are reviewed for accuracy and format as well as persuasiveness to attract readers, and also are posted on the atmospheres webpage. Additionally, he reviewed 15 IRAD 14 Step 1 proposals over the past year, submitted recommendations and participated in a meeting with each Atmospheric investigator to provide suggestions for improvements prior to Step 2 submissions. Following the Step 1 process, he reviewed 11 STEP 2 proposals and attended a review panel meeting where approvals and priorities were established for 35 proposals; 29 were selected for funding in FY14. The 50th anniversary of the Nimbus 1 satellite launch will occur in 2014, and NASA Goddard Space Flight Center is planning a seminar series on the scientific accomplishments, highlighting the societal and commercial benefits made possible through the 48 experimental instrument systems flown throughout the seven Nimbus missions. Mr. Cote will coordinate the scientific program, and the Public Affairs Office will play a major role in organizing the overall event. Mr. Cote also performs general administrative duties, such as attending general and senior staff Laboratory meetings, attending various seminars and colloquia, and consulting with the Lab Chief (Bill Lau) and Associate Chief (Karen Mohr) on various topics dealing with Laboratory personnel, administration, management, etc. Dr. Margaret Hurwitz (sponsor: P. Newman) analyzes and models the impact of sea surface temperature variability on the ozone layer. Her work involves understanding the role of hydrofluorocarbons (HFCs) in climate and stratospheric modification, which is a project she works on with Dr. Feng Li, Dr. Qing Liang, Dr. Paul Newman and Mr. Eric Fleming. She has begun simulations testing the climate and ozone sensitivity of the ocean-atmosphere version of the GEOS chemistry-climate model (GEOSCCM). She has given several presentations on this topic, nationally and internationally. Over the past year, Dr. Hurwitz completed an analysis of the seasonal mean, extra-tropical atmospheric response to El Niño/Southern Oscillation (ENSO) in the CMIP5 models. She met with the ENSO working group at the SPARC DynVar workshop in April 2013, where she presented a poster. She also has a related paper in press with Climate Dynamics and JGR. Work related to the QBO and other GEOSCCM-related activities also led to several national presentations as well as many co-authored publications. Dr. Leslie Lait (sponsor P. Newman) focuses his research on investigating the dynamical context of atmospheric measurements, to aid in their interpretation. Data from several sources (satellite, balloon-borne, aircraft, and ground-based instruments) are analyzed with an emphasis on using techniques that assist in combining disparate data sources to yield a unified picture. He 8 | GESTAR Annual Report 2013 - 2014 also provides support to aircraft field experiments, including the use of forecasts and modeling results to aid in planning aircraft flights to maximize the scientific return and test the feasibility of various flight path scenarios. For the second science campaign of the Hurricane and Severe Storm Sentinel (HS3) field experiment, staged from NASA’s Wallops Flight Facility from August 11 through September 27, 2013, Dr. Lait provided preparation and flight planning support. Preparations included modifying the locallywritten flight planning software to accommodate new needs of the HS3 mission, packing equipment and initiating arrangements for shipment to Wallops, and participating in teleconferences. On-site field mission support involved planning science flights, evaluating various scenarios for timing and feasibility, and determining way points and dropsonde locations. He prepared materials for the flight crew and the leading mission scientists, and uploaded descriptive files to the project’s web-based collaborative tools website for use by all participants. In addition, he used meteorological forecasts to model the fuel temperature on the aircraft, to avoid dangerously cold regions in which the fuel could be prone to freezing. To adjust for the movement of the tropical storm systems being examined, Dr. Lait assisted in revising the flight paths in real time during flight, and set up and maintained the computer systems used for flight planning. Several mission forecasters were trained in utilizing the flight planning software. After the Wallops phase of the experiment ended, the second Global Hawk aircraft was flown in a test flight from NASA’s Dryden Flight Research Center. This flight, flown on October 31, 2013, was intended to examine some performance characteristics of the aircraft with an altered payload. To allow the science team to monitor the altitude time history of the aircraft in real time and compare it with previous flights, Dr. Lait created software to display the current altitude history alongside previous flights’. After the test flight, he performed an analysis of the data gathered, showing that the payload change made no difference in the aircraft’s ability to climb. He participated in the HS3 Science Team meeting held at NASA’s Ames Research Center in Mountain View, CA and participated in numerous teleconferences and planning discussions. In the coming year, new capabilities will be added to the flight planner. Dr. Lait will provide on-site flight planning support for the HS3 deployment scheduled for Aug-Sept 2014 at Wallops Island. In a refinement of an analysis carried out last year addressing the feasibility of flying through the extremely cold temperatures of the tropical tropopause region, Dr. Lait used a new set of meteorological data, NASA’s Modern-Era Retrospective analysis for Research and Applications (MERRA), to compile improved statistics of cold temperatures over the region near Guam. The white paper from last year was revised and extended accordingly, and copies were distributed to ATTREX leadership. Work also continued on modeling the fuel temperatures on the Global Hawk aircraft. A new set of equations were developed that better characterizes the aircraft’s thermal behavior, and data from ATTREX flights of 2012 and 2013 were used to fit the resulting coefficients. The model now reproduces actual ATTREX fuel temperatures with impressive accuracy, and can now be tuned for use with new payloads. He wrote a description of the model and its characteristics in a white paper that was subsequently distributed to appropriate parties. From January 7 thought March 16, 2014, Dr. Lait traveled to Guam to support the final ATTREX deployment at Andersen Air Force Base. He evaluated various scenarios for timing and feasibility of flight plans, and determined way points. As with the HS3 field campaign, Dr. Lait prepared materials for the ATTREX flight crew (including high-altitude meteorological forecasts) and the leading mission scientists, and uploaded descriptive files to the project’s web-based collaborative tools website for participants’ use. He used meteorological forecasts to model the fuel temperature on the aircraft to determine the likelihood of fuel freezing, and assisted in revising the flight paths in real time during flight to adjust for the movement of the tropical storm systems being examined. He set up and maintained the computer systems used for flight planning on site. the agency clearance process for the NCA report and highlights document. Within NASA, she leads weekly meetings to brief Earth Science Division senior management on NCA progress. She has been working with agency communications personnel and ESD senior management to develop plans for the rollout of the report. She also led several briefings to agency leadership on the report. In addition to supporting activities associated with the Third NCA Report, she also provides support for NASA’s involvement in the sustained assessment process for the NCA. Dr. Leidner helps coordinate activities in two NASA programs that fund research activities in support of the sustained assessment process for the NCA. In April 2014, she ran a highly successful team meeting that brought together 26 PIs and an additional ~25 researchers, NASA program managers, and agency/USGCRP representatives. The meeting featured projects talks and several discussion sections that fostered collaborations among the research teams. She is also involved in a USGCRP scenarios group that is organizing a workshop for June 2014. Dr. Lait made extensive revisions to the locally-developed software for planning science flights for field experiments. He re-implemented the way locations are defined, allowing for the possibility of defining some locations relative to other locations and thus permitting complicated patterns of aircraft maneuvers to be relocated easily. He also created two new maneuvers to describe rectangular and circular regions within which an aircraft is to spend a given amount of time. In addition, he created a series of screencast-style video tutorials for training new users on how to run the flight planning software. He completed software to read and write two-dimensional data exchange files in the ICARTT format, and work began on similar software to read and write the Hipskind-Gaines exchange file format. Last fall, Dr. Lait participated in preparing computer systems in Code 614 for the shutdown of the U.S. Federal Government which began on October 1, and in the recovery activities afterwards on October 17. He also participated in a review of a security vulnerability that had been found in a contractor-maintained website, helping to provide immediate and long-term assistance in ameliorating the risk. Dr. Leidner provides ongoing support to the Biodiversity and Ecological Forecasting programs in a variety of ways. This year, she focused on developing biodiversity-oriented content for the NASA hyperwall and serving as a liaison to the conservation remote sensing community. To this end, Dr. Leidner participated in a ~30 person conservation remote sensing workshop, organized by the Committee on Earth Observing Satellites (CEOS) Biodiversity group and hosted at the European Commission’s Joint Research Centre. After the workshop she developed a meeting summary that was subsequently published in Eos, Transactions of the American Geophysical Union. This effort builds on her previous work with the Conservation Remote Sensing Working Group and the CEOS Biodiversity group. Going forward, within the Biodiversity and Ecological Forecasting programs, she will continue to work with the conservation remote sensing community, highlight program accomplishments, and help develop program strategies. Dr. Allison Leidner (sponsor: J. Richards) has two main responsibilities working with the Earth Science Division at NASA Headquarters: she is part of the team that leads NASA’s involvement with the National Climate Assessment (NCA), and she provides support for activities within the Biodiversity and Ecological Forecasting Programs. She is NASA’s representative on the U.S. Global Change Research Program (USGCRP) Interagency NCA Working Group and serves as the primary point of contact for the agency’s NCA activities. A major accomplishment this year was the review and release of the Third NCA Report (May 2014). This report has been under development for over three years and involved hundreds of people. Dr. Leidner actively participated in the biweekly meetings of the interagency working group that helped shepherd the report through the final stages and assisted with This past July was the biennial international meeting of the Society for Conservation Biology, held in Baltimore, MD. Dr. Leidner presented on the NASA Biodiversity and Ecological Forecasting Programs. Furthermore, in collaboration with EOSPSO, she coordinated bringing the NASA hyperwall to the conference. She arranged for four biodiversity/ecological forecasting PIs and one program manager to present during the official conference coffee breaks, and also gave two hyperwall talks herself. The hyperwall was a huge success, and each talk was attended by 50-100 people. She and other program managers have used this content at other professional conferences, and several of the PIs have given their talks at other conferences. Working with the EOSPSO team, Dr. Leidner contributed to the development of the brochure “Understanding Earth: Biodiversity”. This public-oriented booklet provides an overview of biodiversity and describes the contributions of NASA remote sensing to biodiversity research and ecological forecasting applications. Prepared in time for distribution at GESTAR Annual Report 2013 - 2014 | 9 the 2013 AGU Fall Meeting, this booklet was very popular at AGU and subsequent meetings. Dr. Feng Li (sponsor: P. Newman) conducts research on the interaction of the stratosphere and troposphere, particularly as it relates to the interaction of the ocean and the stratospheric ozone layer; investigates how atmosphere-ocean coupling affects the stratosphere, and how the stratospheric ozone change affects climate in the troposphere and ocean; works toward improving our understanding of stratospheric dynamic and transport processes. In order to address the full extent of the complex interactions between stratospheric ozone chemistry and radiative, physical, dynamical processes in the atmosphere and ocean, the development of a coupled atmosphere-ocean-chemistry climate model is essential. Dr. Li has successfully integrated the GEOS-AOCCM, which consists of the GEOS-5 AGCM, the GFDL MOM4 ocean model, the Los Alamos CICE sea ice model, and a comprehensive stratospheric chemistry package. He conducted two 100-year time slice simulations under the 1950 and 2005 conditions, as well as a set of four transient simulations of the recent past (1960-2010). Additionally, three sets of sensitivity simulations of the recent past were conducted with the GEOS-CCM (without coupled ocean) and GEOS-AOGCM (without interactive ozone). In summary, a total of 1,000 model years were conducted. These baseline and sensitivity simulations were used to investigate 1) the impact of interactive ozone on climate in the atmosphere and ocean, and 2) the effects of atmosphere-ocean-ice coupling on climate, variability, and trend in the troposphere and stratosphere. Most coupled atmosphere-ocean models do not have interactive stratospheric ozone. These models prescribe monthly-mean, zonal-mean ozone derived from observations or CCM simulations. By prescribing monthly-mean, zonal-mean ozone, these models cannot resolve the large diurnal cycle of the mesospheric ozone, underestimate ozone extreme events, and lack zonal asymmetries. However, it is unclear how these deficiencies impact climate simulations. In order to address this question, a set of four prescribed-ozone simulations of the recent past (1960-2010) were conducted. In this set of sensitivity simulation, the ozone field is prescribed from the corresponding AOCCM simulations, and they produce significantly different climate in the mesosphere, stratosphere, and troposphere from that in the interactive-ozone simulations. Also, prescribed ozone affects simulations of the sea surface temperature, particularly in the north Pacific and north Atlantic. These results are being analyzed and a journal manuscript is in preparation. Dr. Li will be collaborating with Dr. Margaret Hurwitz to integrate HFC chemistry and radiation into the GEOSAOCCM, and will conduct control and sensitivity simulations to investigate the impacts of HFCs on stratosphere, particularly stratospheric ozone recovery. Ms. Jackie Phillips (sponsor: E. Brown de Colstoun) works with an experienced team in developing data sets, testing the methodolo10 | GESTAR Annual Report 2013 - 2014 gy, and validating the end products of the Global Land Survey and Impervious Mapping Project (GLS-IMP), participating in various tasks. Ms. Phillips has created and launched a public website for the GLS - IMP. Currently still under construction, the website contains information such as project details, contact information, and information on obtaining data. This site is meant to be a place for interested scientists and the public to obtain more information on the growth of urban areas throughout the globe. From the creation of this site, Ms. Phillips was able to explore the many capabilities of ArcGIS Online (AGOL) and incorporate it into her site. AGOL, an online GIS mapping tool, allows GIS developers and researchers to share their maps and imagery without giving out the raw data. She further developed her editing and writing skills, and learned more about website development by attending the ESRI Developers Summit in Washington, D.C. in February. She also had to confirm the site met federal compliance standards and accessibility standards. She also completed the training data for the GLS-IMP. Ms. Phillips and her colleague ordered over 1,700 WorldView and Quickbird high-resolution scenes from the National Geospatial-Intelligence Agency’s WARP database, and organized and pre-processed selected images. Image labeling began while completing the pre-processing. Nearly 700 images were selected as training sites. The subsetting of these images resulted in nearly 2,000 images manually labeled as pervious or non-impervious regions. Labeling rules were created during the process through a series of meetings with team members at the University of Maryland. Ms. Phillips and her teammates discussed quality assurance, and each corresponding Landsat image had its orthorectification visually assessed; in some cases, adjustments were necessary to maintain accurate geolocation. Locations with orthorectification errors were repaired through further processing. All global training data labeling was completed in March 2014 for the Global Land Survey and Impervious Mapping Project. Some sites still need their orthorectification reviewed, but the process is expected to be completed by early May 2014. At the NASA Land Cover/Land Use Change Program Meeting, Ms. Phillips presented a poster detailing the training data process for the GLS-IMP, which covered all aspects of the training process, including pre-processing, data acquisition, image classification, quality assurance, and a summary of the total data processed. This was her first presentation at a professional meeting. Training data labeling for the GLS-IMP was completed using an inhouse software suite called HSeg, developed by James Tilton. The HSegLearn package was developed specifically for this project. Ms. Phillips provided feedback regarding functionality, suggested improvements, and tested for bugs. She created how-to documentations for team members to learn how to use the software. For her contributions, she was listed as a NASA Co-Innovator for the HSegLearn Software. Dr. Oreste Reale (sponsor: W. K. Lau) carries out numerical model experiments using the GEOS-5 GCM with interactive aerosols, to study the impact of dry air intrusion and radiative effects of Saharan dust on structure of tropical easterly waves and tropical cyclogenesis. He validates model results against CloudsatCalipso observation, making use of the Goddard Satellite Data Assimilation System, and evaluates possible change in predictability of tropical easterlies waves; he also performs simulations studies of high impact extreme current events, with and without AIRS cloudy sky retrievals to assess impacts improving initial conditions on predicting these events and any possible teleconnectivity between them. This past year, Dr. Reale completed the investigation of the results of a previously performed experiment with the latest version of the GEOS-5 data assimilation and forecast system. The model configuration included an innovative aerosol Figure: Analysis of Aerosol Optical Depth from the GEOS-5, obtained by direct assimilation assimilation capability, developed by of MODIS optical depth, at a time of a strong outbreak of Saharan Dust which can be seen the GMAO. The experiment consisted interacting with an African Easterly Wave. Two sets of forecasts (in which the radiative effects of a 30-day-long global data assimilaof Saharan dust are in turn enabled or disabled) are initialized from these analyses. The tion run, in which optical depths from results show that the environment in which dust is taken into account is less conducive to MODIS were assimilated, and two tropical cyclogenesis (Reale et al. 2014, in press in Geophysical Research Letters) (Image sets of 5-day forecasts, with and withCredit: O. Reale). out aerosol simulation, initialized every day. A subset of 8 forecasts durtion, and indicate that the impact of dust on TC growth is negaing a particularly interesting period, noteworthy because of the interaction with African Easterly Waves tive, as several previous studies suggested. The use of aerosol assimilation in a global modeling setting further strengthens the with strong Saharan dust outbreaks, was extended to 10 days to understanding of the mechanisms involved. further explore the effect of dust with developing cyclones. Two major results are the outcome of this study. First, the experiDr. Oreste Reale (Tech. Officer: K. Lau) also conducts research ments reveal that the effect of dust is to inhibit tropical cyclone related to his NASA ROSES grant (6/20/2011-6/19/2014) of (TC) development. When a TC is present in two parallel simulawhich he is the PI. The goal of this current proposal is to investitions (with and without aerosol effects) the one in which aerosol gate the impact on the representation of tropical cyclones within effects are taken into account tend to be less intense. Second, a global data assimilation and forecasting framework, consequent these experiments represent the first attempt of producing a fully to the use of AIRS-derived products, as a tool to better understand 3-dimensional analysis of aerosols, obtained by assimilation in processes affecting intensity forecast, particularly those deriving a global system of satellite-derived MODIS optical depths, and from the improved horizontal and vertical TC structure. To comdocument this existing capability within NASA. At this time, no pare AIRS version 5 and 6 impacts in the GEOS-5, multiple experioperational center in the world assimilates real-time aerosol data ments were conducted for the 2010 and 2012 hurricane seasons. at this high resolution and in a fully coupled mode. Dr. Reale, AIRS assimilations (of retrievals and radiances), each encompassalong with co-authors K. M. Lau, A. da Silva, and T. Matsui, has ing more than 120 days), plus several sets of 7-day forecasts a related article in press with Geophysical Research Letters. The (initialized from every day of the analysis data sets, for a total of authors documented the feasibility of real-time aerosol assimilaGESTAR Annual Report 2013 - 2014 | 11 GOddard SnoW Impurity Module (GOSWIM) Dr. Teppei Yasunari’s paper was recently published on SOLA, a peer-reviewed online Journal of Meteorological Society of Japan. This paper details Dr. Yasunari’s initial and ongoing research on developing the snow darkening module for NASA GEOS-5 over the land surface, which can calculate how the snow can darken due to deposits of light absorbing aerosols (dust, black carbon (BC), and organic carbon(OC)), thus influencing global climate via feedbacks between land and atmosphere. Following updates of the snow albedo scheme and a newly developed mass concentration scheme, further GEOS-5 experiments were conducted and validated with available observations. This snow darkening module for GEOS-5 was named the GOddard SnoW Impurity Module (GOSWIM). Because of the GOSWIM development, Fortuna 2.5 version of NASA GEOS-5 is capable of calculating the snow darkening effect over the model-defined land surface tiles. Yasunari, T. J., K.-M. Lau, S. P. P. Mahanama, P. R. Colarco, A. M. da Silva, T. Aoki, K. Aoki, N. Murao, S. Yamagata, and Y. Kodama, 2014: GOddard SnoW Impurity Module (GOSWIM) for the NASA GEOS5 Earth System Model: Preliminary comparisons with observations in Sapporo, Japan. SOLA, 10, 50-56, doi:10.2151/sola.2014-011. (Image credit: T. Yasunari) more than 1000 7-day forecasts), were performed with the GEOS-5 on NASA High-End-Computing (HEC) systems. These experiments cover the entire 2010 northern-hemisphere tropical cyclone season and part of the 2012, allowing for the generation of very robust statistics, and represent a major computational effort that have required a full year to be completed. Even more than in the last annual report, it can be confidently stated that no other team in the world has assimilated such a large sample of AIRS retrievals and radiances within a global data assimilation system. Dr. Reale extensively analyzed these simulations and found that AIRS version 6 retrievals do not seem to produce an improvement on the global skill of the GEOS5 system, with respect to AIRS version 5. This was an unexpected finding, which is being investigated in depth. Note, the successor proposal was selected, and work will continue on investigating the use of AIRS data to further improve tropical cyclone intensity forecast and also extreme precipitation. A special effort will be made to start assimilating cloud-cleared radiances, which are a state-of-the-art challenge for AIRS assimilation. While the study of localized impacts of AIRS version 6 have further corroborated the previous results (i.e., that assimilation of cloudy retrievals produce a substantially better representation of tropical cyclones than the corresponding clear-sky radiances), the same cannot be said of global skill. In particular, results continue to show that much deeper (and closer to observations) analyzed 12 | GESTAR Annual Report 2013 - 2014 center pressures are obtained when retrievals (of either version) are assimilated, and track and intensity forecast both show improvement with respect to clear-sky radiances. Yet, no appreciable impact on global skill can be detected when AIRS version 6 replaces version 5. This perplexing finding is being investigated from multiple angles with a variety of metrics. Dr. Reale has conducted current experiments that suggest that the relative impacts of AIRS retrievals and AIRS radiances change with the increase in resolution, with the combined impact of AMSU-A and AIRS clear-sky radiances being amplified at higher resolutions more than the individual instrument’s impact. To further investigate the differential AMSU/AIRS impact, Dr. Reale and his collaborators have produced new extensive simulations with GEOS-5 v2.7, covering the 2010 northern hemisphere tropical cyclone season, in which AMSU-A is in turn assimilated or excluded (with and without AIRS). These new runs are being analyzed and confirm that the combined impact of AMSU and radiances together benefit from the increase in model resolution. Experiments are being prepared in which cloud-cleared radiance assimilation will be compared to cloudy retrievals and clear-sky radiances. Other experiments are focused on Hurricane Sandy (2012), with the goal of improving track and intensity forecasts. In particular, the density of assimilated AIRS data version 6 is perturbed by changing the data thinning. These experiments are performed in strict collaboration with the AIRS data production teams and should allow for the definition of the optimal data density. results were presented by Dr. Yasunari and his sponsor, and results are being summarized for submission to a scientific journal. Analyses will continue on the outputs from the free running NASA GEOS-5 experiments for the heat wave-related topic. Under Dr. Lau’s project, they intend to use the outputs from the free running NASA GEOS-5 experiments for the heat wave related topics. Dr. Teppei Yasunari (sponsor: W. K.M. Lau) conducts data analysis and modeling studies of the impact of light absorbing aerosols (LAA) such as dust, black carbon (BC) and organic carbon (OC), on the changes of snow-related variables (called snow darkening effect, SDE) and its climate feedbacks between the atmosphere and the land surface in the Asian monsoon region. He has been developing a new snow impurity module to incorporate the SDE into the NASA GEOS-5 land surface model. He is studying how the SDE, which includes the changes of snow albedo, possibly has an impact on snowpack changes around the Himalayas and the other cryospheric regions, and surrounding climate via feedback by using the snow impurity module in NASA GEOS-5, satellite data, and the data from field observations. He also investigates the nature of LAA depositions such as dust and BC. From his research results, Dr. Yasunari produced his largest contribution to date to NASA and GESTAR, when, after many attempts and revisions, he and his colleagues reached a snow darkening module for dust, black carbon, and organic carbon for the NASA GEOS-5 Model called GOddard SnoW Impurity Module (GOSWIM). NASA GEOS-5 can consider the snow darkening effect over the model defined land surface. A related summary paper on GOSWIM was recently published, and will appear as a Monthly Science Highlight in May 2014 (http://atmospheres.gsfc.nasa.gov/climate/). In the coming year, Dr. Yasunari will be updating GOSWIM from Fortuna 2.5 version to Ganymed 4.0 version of NASA GEOS-5. Re-coding and updates are expected in the process. Dr. Yaping Zhou (sponsor: W. K.-M. Lau) aims to understand global and regional extreme precipitation events in terms of the characteristics of rain, and relationship to the prevailing weather regimes and the relationship of extreme rain events to large-scale environment and climate forcing. Research over the past year involved the analyses of spatial, spectral, and temporal (seasonal and diurnal) distributions of extreme volumetric rain based on 14 years TRMM Precipitation Feature database, examined rain structures and associated large-scale environment including temperature, moisture, vertical velocity, wind shear and convective available potential energy for extreme events. Dr. Zhou and colleagues found rapid changes in rain characteristics and largescale environment in extreme events starting at the top 10% of the distribution. A related manuscript was submitted for publication. Dr. Yasunari and his colleagues summarized the comparisons of total dust deposition flux during precipitation between the observations in Japan and GEOS-5 experiments. They submitted and re-submitted a manuscript to ACP; after a rejection from ACPD, they decided to revise another submission in the near future. He has presented his research findings at conferences nationally and internationally. He also prepared some materials for presentations by his sponsor at the AMS meeting in 2014. Also, on behalf of Dr. Bruce Doddridge (NASA/LaRC), Dr. Cynthia Randles asked him to provide some slides on his modeling work on BC on snow for a general audience. While he provided slides on the snow darkening effect and its modeling at NASA to support Dr. Doddridge’s presentation, these ended up not being included. Additionally, a prototype online extreme precipitation monitoring system has been developed from the TRMM TMPA near real-time precipitation product. The system utilizes computed equivalent Averaged Recurrence Interval (ARI) for up-to-date precipitation accumulations from the past 1, 2, 3, 5, 7, 10 days to locate locally severe events. The mapping of precipitation accumulations into ARI is based on local statistics fitted into Generalized Extreme Value (GEV) distribution functions. Initial evaluation shows that the system captures historic extreme precipitation events quite well. The system provides additional rarity information for ongoing precipitation events based on local climatology that could be used by the general public and decision makers for various hazard management applications. Limitations of the near real-time TMPA due to short data record and accuracy are being discussed. Another related manuscript was submitted for publication. Dr. Yasunari and his colleagues carried out ten sets of free running NASA GEOS-5 experiments with and without snow darkening effect by dust, black carbon, and organic carbon, with the developed GOSWIM. Ten types of the different years’ initial conditions were used to generate initial perturbations to discuss statistically robust climatology of the snow darkening feedbacks. Some of the GESTAR Annual Report 2013 - 2014 | 13 CODE 610.1: Global Modeling and Assimilation Office Dr. Deepthi Achuthavarier (sponsor: S. Schubert) evaluates aspects of climate and weather variability in century-long simulations and decadal predictions made with the GEOS-5 coupled atmosphere/ocean/land model. Areas of focus include the Pacific Decadal Oscillation (PDO), the Atlantic multi-decadal oscillation (AMO), and long-term variability in the Asian and American monsoons. She conducts and analyzes long coupled model simulations, ensembles of predictions, as well as model sensitivity studies to assess the impacts of uncertainties in various model parameters. A major highlight of this past year was Dr. Achuthavarier being recognized by the NASA Global Modeling Assimilation Office (GMAO) with the Peer Award for Scientific Achievement. Dr. Achuthavarier has surveyed several relevant papers and prepared a summary of ideas for the decadal prediction experiments, particularly with a focus on the PDO. This is the primary step for the several PDO predictability experiments that she will be conducting in the later part of 2014. Dr. Achuthavarier prepared an article on the mechanisms of the PDO in the GEOS-5 coupled model which will be submitted as a NASA Technical Memorandum before the end of May 2014. Also, since November 2013, she has been working closely with the GMAO data assimilation group in setting up two reanalysis runs as part of the Dynamics of the Madden Julian Oscillation (DYNAMO) project. This task consists of three key steps: 1) preparation and modification of the conventional data buffer, which involve the removal of vertical profiles of temperature, humidity and winds from selected radiosonde stations over the tropical Indian Ocean, 2) preparation of data buffers for high vertical resolution radiosonde observations, and 3) execution and analysis of assimilation runs with the abovementioned modified data buffers. She has completed data buffer modifications and new buffer preparations and has performed several test assimilations and analyzed outputs. The final assimilation runs have begun with the use of the latest version of the GEOS-5 atmospheric data assimilation system. Dr. Virginie Buchard-Marchant (sponsor: A. da Silva) works on the development of a VLIDORT (Vector LInearized Discrete Ordinate Radiative Transfer) interface to simulate top-of the-atmosphere radiances using GEOS-5/GOCART aerosol concentrations. She also evaluates MERRA Aerosol reanalysis absorption, and this past year, by means of the radiative transfer GEOS-5-VLIDORT interface developed over the past few years, she could simulate the UV Aerosol Index (AI) from the GEOS-5 aerosol assimilated fields in order to perform comparisons with the corresponding OMI product during dust, biomass burning and pollution events. As a result of this analysis over the Saharan dust region, the dust aerosol optical properties were updated in GEOS-5. Her work consisted of also utilizing complementary observations to fully diagnose the model, including retrievals from MISR, MODIS, AERONET and measurements from the CALIPSO mission to ascertain misplace14 | GESTAR Annual Report 2013 - 2014 ment of plume height by the model. She gave several presentations on this work, and a manuscript is in progress. Following Dr. Buchard’s work on the evaluation of GEOS-5 SO2 simulations during the Frostburg, MD field campaign, a related paper was published in ACP, and the work was highlighted on the GMAO website as a Research Highlight. Dr. Yehui Chang (sponsor: S. Schubert) examines the overall evaluation of climate variability and predictability at sub-seasonalto-decadal timescales and the role of initialization in improving prediction skill. He also works on climate simulations and attribution studies and conduct climate diagnostic studies using the GEOS-5 model suite in the GMAO. Dr. Chang is a key contributor to attribution studies, focusing on the role of climate models in extreme weather events. Over the past year, he has been carrying out large ensemble high-resolution prediction experiments to assess the ability of the GEOS-5 model to reproduce the unusual extreme weather activity such as the flooding and other extreme weather of the 2011 spring in the central U.S. His work has contributed to the overall evaluation of climate variability and predictability at sub-seasonal-to-decadal timescales and the role of initialization in improving prediction skill. The study examines the SST boundary forcing, global atmospheric initial conditions and North America land initial conditions and assesses the climate factors contributing to the extreme 2011 flooding and tornadoes. Several high-resolution GEOS-5 GCM ensemble simulations provided a high-quality global data set for this study. Studies were continued to evaluate climate variability and predictability at sub-seasonal-to-decadal timescales. Dr. Chang has analyzed very large coupled model decadal hindcast experiments to contribute to the GMAO decadal prediction effort, and evaluated the AMOC and other climate variability. This research resulted in a presentation at the 2013 AGU Fall Meeting as well as a related publication that is underway. Additionally, work continues on the very large ensemble GCM hindcast experiments for summer 2012, specifically the imposition of the precipitation anomaly to jumpstart a meteorological drought or heat wave after the zerorain period (compared to control). This work also will determine the effectiveness of the kick-starting during certain time periods, and could explore the potential sources of predictability on intraseasonal time scales. The results were presented at a conference in February 2014. In the upcoming months, he will evaluate the existing high-resolution GEOS-5 simulations for summer 2012 to quantify the nature of the forcing of stationary Rossby waves and anomalous high frequency transients associated with them. In his study of a mechanism for land-atmosphere feedback involving planetary wave, an atmospheric general circulation model (AGCM) is used to explore one potential mechanism for remote soil moisture impacts on meteorological fields, a mechanism involving the phase-locking of a planetary wave over a specific soil moisture pattern. The precise mechanisms by which land-atmosphere feedback occurs are still largely unknown – particularly the mechanisms that allow the land moisture state in one region to affect atmospheric conditions in another. Such remote impacts are examined in the context of AGCM simulations, leading to the identification of one potential mechanism: the phase-locking and amplification of a planetary wave through the imposition of a spatial pattern of soil moisture at the land surface. This mechanism, shown in this study to be relevant in the AGCM, apparently also operates in nature, as indicated by supporting evidence found in reanalysis data. Dr. Chang’s future work will focus on using GEOS-5 GCM-simulated, MERRA, NEWS and other data sets to quantify the mechanisms that link the upper level circulation to changes in surface meteorology. A key aspect of this is to focus on the weather transients and their role in the development of the sub-seasonal climate extremes. Dr. Gabrielle De Lannoy (sponsor: R. Reichle) works on the development of the Soil Moisture Active Passive (SMAP) Level 4 soil moisture (L4_SM) data product. In preparation for the assimilation of SMAP observations, satellite observations from the Soil Moisture Ocean Salinity (SMOS) mission are used to build a prototype system for the L4_SM product. This past year, she co-authored invited presentations (IGARSS, WMO, AGU, AMS), and participated in SMAP-related telecons/meetings. She contributed to seven published papers and four submitted papers. Additionally, she was awarded a new project (THP10) on simultaneous GRACE and SMOS data assimilation and hired Dr. Girotto as part of the team (see following report). She will be assisting Dr. Girotto on a new project for GRACE/SMOS data assimilation. Dr. De Lannoy implemented new global soil texture information and new soil parameters in the Catchment land surface model to improve soil moisture simulations for the SMAP Level 4 product. A related paper is in review for JAMES. She is also working on a book chapter about soil moisture data assimilation. Work related to radiative transfer model parameter estimation using SMOSdata and on uncertainty estimation using a Markov Chain Monte Carlo method resulted in two published papers. Dr. De Lannoy also has continued work on optimizing the global SMOS brightness temperature assimilation and contributes to the SMAP Level 4 assimilation system. Dr. Gabrielle De Lannoy and Dr. Manuela Girotto (sponsor: R. Reichle) work on assimilating satellite observations from the Gravity Recovery and Climate Experiment (GRACE) and Soil Moisture Ocean Salinity (SMOS) mission into GMAO’s land surface data assimilation system. The goal is to assimilate both vertically integrated terrestrial water storage (GRACE) and brightness temperature to improve surface and root zone soil moisture. Dr. Girotto joined GESTAR in January 2014 and leads the NASA-ROSES (THP10) funded research awarded to Dr. De Lannoy (PI), and Drs. Reichle and Rodell. Dr. De Lannoy has worked with Dr. Girotto to read and scale newly released gridded GRACE data into the GMAO’s land data assimilation system, and they performed an initial comparison of GRACE data with model simulations. Dr. Girotto was involved in supporting test simulations, led by Dr. De Lannoy, to study the effect on terrestrial water storage and temperature variables. These simulations involved new soil parameter sets and source code changes in the Catchment land surface model and were conducted to prepare the system for operational SMAP data assimilation. In the coming months, the uncertainties in GRACE and SMOS observations will be determined through triple collocation. The research team will contribute to (invited) conference presentations and submit a paper about the assimilation of gridded GRACE terrestrial water storage anomalies. Dr. Clara Draper (sponsor: R. Reichle) works on the development and implementation of land data assimilation components, in particular, the use of satellite observations of soil moisture, snow, and land surface temperature. Dr. Draper has coupled the GMAO Land Data Assimilation System (LDAS) to the GEOS-5 atmospheric modeling and assimilation system, creating the Land and Atmosphere Data Assimilation System (LA-DAS) which, for the first time, allows land surface observations to be assimilated into the GEOS-5 atmospheric system. Dr. Draper also has refined the assimilation of remotely sensed land surface skin temperature (LST) from geostationary satellites, improving the bias removal, data processing, and quality control procedures, and has conducted experiments assimilating LST observations using both the offline LDAS and full GEOS-5 LA-DAS. She has published four peer-reviewed journal articles, one as first author, and three as a co-author, with one additional first author paper currently under review. She has presented two seminars, and given five first-author conferences presentations, two of which were invited. With the offline LDAS, Dr. Draper performed global experiments assimilating geostationary LST observations, and evaluated the assimilation of geostationary LST observations from the GOESEast and GOES-West satellites over the Americas. Compared to independent remotely sensed and in situ LST observations, the assimilation improved the model LST dynamics over short (synoptic) time scales. Subsequently, using the LA-DAS, she assimilated the GOES-East and GOES-West LST observations into the GEOS-5 atmospheric assimilation system, to test the impact on atmospheric forecasts and data assimilation. Compared to past experiments, assimilating the LST observations into the LA-DAS resulted in a longer model memory of the LST assimilation updates and a greater net impact on land surface flux forecasts than assimilating the LST observations into the offline LDAS. The LA-DAS experiments also confirmed the expectation that LST assimilation can be used to constrain low-level atmospheric temperature forecasts. To date, Dr. Draper’s LST assimilation experiments have been designed to correct only short-lived model LST errors; however, by GESTAR Annual Report 2013 - 2014 | 15 using the assimilation to correct for long- term LST model biases, a much greater impact could be obtained. Since this approach is not yet possible, due to considerable biases in the remotely sensed LST observations, she is now working on a method to bias correct the geostationary LST observations using 2m air temperature observations. She also be using the coupled LA-DAS system to test the impact of assimilating one year of remotely sensed near-surface soil moisture on atmospheric forecasts. While nearsurface soil moisture assimilation has received much attention, these observations have yet to be assimilated into an atmospheric system using a state-of-the-art land data assimilation and observation bias correction method, such as those available in the GMAO LA-DAS. Dr. Ron Errico (sponsor: R. Gelaro) works on continuing the development and application of an Observing System Simulation Experiment (OSSE) framework at NASA’s GMAO. Software for simulating observations have been made more modular and tools for tuning of simulated observation error statistics have been made more automated. Validation results using a variety of metrics have been reported in peer-reviewed journals. Development will continue in the coming year of software for simulating observations from the new GMAO very-high resolution nature run intended for OSSEs. This data set is provided for more than a hundred fields, every 30 minutes for 2 years on a 5760x2881x72 global grid; such a massive amount of data requires a new structuring of the OSSE observation simulation software. It has been proposed to launch a constellation of 18 CubeSat microwave scanning radiometers. The GMAO OSSE and GDAS-5 data assimilation systems were adapted to create simulated Micromas observations and their assimilation. Two competing channel-set configurations were examined. Both produced similar benefits to short-term forecast skill that were significant; thus, the cheaper channel configuration should be employed. The “NMC method” has been used to generate estimates of background error statistics since variational data assimilation was first introduced. It begins by examining the differences between 48and 24-hour forecasts valid at the same time. Here, covariances of those differences were compared with true background errors determined within an OSSE context. Comparisons showed that not only variances but also correlation lengths differed considerably. Results suggested that the OSSE itself can provide a better estimate of the true required statistics. Software has been developed to estimate cloud effects on counts of quality-controlled simulated observations for OSSEs. Observation counts for channels of IR radiances are greatly affected by cloud distributions. In the GMAO OSSE, whether a cloud affects an observation is specified stochastically based on conditional probability distributions and cloud fractions with selected pressure ranges. Previously, the resulting cloud-free observation counts could only be determined by applying the quality control algorithm within the GMAO data assimilation system. Now, earlier guidance 16 | GESTAR Annual Report 2013 - 2014 is provided by software that estimates counts simply given the specified parameters for the conditional probability distributions and histograms of the cloud fraction distributions. Dr. Daniel Holdaway (sponsor: R. Gelaro) develops the tangent linear and adjoint components of GEOS-5 for use in the data assimilation tools used by the GMAO. Over the past year, he has developed a linearized prognostic cloud scheme. The first version of the linearized moist physics included convection and large scale condensation but not a sophisticated linear cloud model; instead, all super-saturation was assumed to be instantaneously removed through precipitation to the surface. In order to fully utilize observations of clouds and precipitation, such as those from the new GPM satellite, a representation of clouds was required in the linear model. The ultimate goal is to employ a 4DVAR technique to the assimilation; at present, he is using 3DVAR, with one time step of 4DVAR for the cloud assimilation. In both cases a linear cloud model will be required. The cloud scheme used in GEOS-5 suffers from strong non-linearity and instability when linearized. In order to develop a working linear version, very careful analysis of the nonlinear scheme is required. From examining the scheme, a filtering was developed that determines when problems are likely to occur. With minor simplifications to the model, and implementation of the filtering technique, a prognostic linear cloud scheme that performs well has been implemented. This scheme has been extensively tested by comparing the tangent linear model with the nonlinear model. Two nonlinear model runs were generated, one with an analysis increment added as a perturbation at the initial time and one with no perturbation. The same perturbation is also used to initialize the tangent linear model. The growth of the perturbation is measured by comparing the difference between the two nonlinear runs over a 24-hour period with the tangent linear run over the same period. Dr. Holdaway analyzed the performance of the linear model by looking at both the correlation and the root mean squared difference between the fields. Both the tangent linear and adjoint versions of the cloud scheme have been developed, and he used a dot product test to ensure both are free of errors. The adjoint model was then used in a series of observation impact experiments to ensure that sensible impacts are obtained. The linearized prognostic cloud scheme has been included in the latest release of the GEOS-5 data assimilation capable model, and this version is now being used to develop the cloudy assimilation system. Early results are very promising. Work will continue with updating the linearized physics schemes; as the nonlinear model is developed, changes occur in the nonlinear physics schemes. To keep the linear model well synced requires continuous development. When the linear version of GEOS-5 was first developed, only a rather simple planetary boundary scheme was implemented, with the aim of keeping the model stable. A new linear boundary layer scheme based on the boundary layer scheme in the nonlinear model has been developed and implemented. Close to the surface, this offers large improvement to the linear model. Month- to the convection scheme to model scavenging, the dynamics tracers and by bringing in all the sources, Dr. Holdaway and colleagues should be able to examine sensitivity to aerosols in the atmosphere using the linear model (i.e., the role that dust plays in the formation of hurricanes). When adjoint-based observation impacts are computed, they rely on two integrations of the nonlinear model. Two adjoint integrations are also computed, along each nonlinear reference state. Then, a sum of the resulting sensitivities is used in the impact calculation. Rather than integrating the adjoint twice, along the two nonlinear reference states, it can be integrated once, along an average of the two, a method known as Gaussian quadrature. In addition to providing improved efficiency, this also can improve the accuracy Figure: Correlation is shown against height for the perturbation fields after 12 of the linear solution by reducing noise in the hours, for the tropics (23S-23N). From left to right, the plots show u wind, v wind, reference trajectory, which may be particularly temperature, specific humidity, cloud liquid water and cloud liquid ice. Blue = the useful for making longer integrations of the correlation when not using the moist physics; Red = the correlation when using the linear model. Working along with two GMAO moist physics. It is clear the correlation increases for all fields when using the moist colleagues, Dr. Holdaway performed several physics, showing the improvement in the linear model. (Credit: D. Holdaway) experiments, combining the use of quadrature, different physics in the linear model, and 24-, 48- and 72-hour integrations. When the long averages of correlation between the linear and nonlinear length of the integration is extended out to 72 hours the linearity perturbation trajectory show improvement of up to 20% below assumption is found to be less valid and the performance of the 500hPa in 24 forecasts, a far more accurate description of senlinear model, especially with moist physics, is reduced. Due to sitivity in the boundary layer region and reflected in the observathese positive results, GMAO will be implementing the Gaussian tion impacts. The boundary layer acts to transport moisture from quadrature in the operational observation impacts. Extending the the surface and thus affects the development of clouds. Proper impact calculation to a 48-hour integration would be beneficial representation of this process in the linear model improves the by reducing the chance of noise entering the calculation. Discusrepresentation of cloud perturbations and sensitivity; in turn, this sions are ongoing, regarding the implementation of this in the improves the assimilation of cloudy observations. next release of the operational model. The radiation schemes in GEOS-5 are important in representing The adjoint model is very useful for examining atmospheric the feedback between clouds and aerosols with atmosphere. As sensitivity since it can be used to find what variable in the initial clouds form, heating and cooling of the atmosphere can occur conditions a specific event was most sensitive to, and it provides through reflection and absorption of longwave and shortwave sensitivity structures, thus providing an optimal perturbation that radiation. Linear versions of both the infrared and solar radiation schemes have been developed and implemented in GEOS-5. Test- could be applied to the initial conditions to reduce or exasperate the event. Dr. Holdaway is examining the sensitivity structures ed with both dry and moist physics configurations, the schemes for three atmospheric events, with Hurricane Sandy being first. performed well. With the moist physics schemes, the boundary The adjoint model may quantitatively reveal the structures that layer scheme and the gravity wave scheme, an almost complete were present that caused the hurricane to turn. A difficultly in description of the physics is now enabled in the linear model. Testing is currently underway to analyze the coupling between the using the adjoint is in picking a metric with which to initialize the model. Common choices are energy around the center of the linear radiation and cloud schemes to determine whether filterstorm or vorticity at the storm’s center. However, these kinds of ing within the moist physics needs to be refined once coupled to metrics generally reveal more about what the storm’s intensity is the radiation. Additionally, the implementation of the radiation sensitive to, rather than its track. These sensitivity studies will schemes provides a representation of an important mechanism continue into the next year. by which dust and other aerosols interact with the atmosphere in the linear model. By using these schemes, making improvements GESTAR Annual Report 2013 - 2014 | 17 Dr. Jianjun Jin (sponsor: R. Gelaro) conducts radiance data assimilation using GEOS-5 atmospheric data assimilation system (ADAS) in order to improve GEOS-5 precipitation and cloud analyses, and develops and improves procedures and algorithms of assimilating microwave radiance observations made by the satellite instrument TRMM/TMI and the new instrument GPM/ GMI. Dr. Jin has continued to develop and evaluate the algorithm of assimilating TMI radiance data in cloudy situations with GEOS5 ADAS. Most weather satellites observe the Earth surface and atmosphere by measuring microwave radiance of the surface and the atmosphere. Due to difficulties and large uncertainties in simulating these radiance observations in cloudy conditions, the current GEOS-5 ADAS only assimilates these radiances under clear sky conditions. In order to make good use of the vast satellite observations, an all-sky data assimilation scheme is being developed for assimilating TRMM/TMI radiance observations. TMI observation error is being tuned and the impact of these observations on analyses is being investigated. In the coming year, Dr. Jin will continue his efforts with developing and evaluating all-sky microwave radiance data assimilation. All-sky radiance data is at the forefront of data assimilation and will significantly improve the application of vast satellite observations and improve the models’ analyses fields such as moisture and precipitation, and will eventually improve the numerical weather forecast model’s forecast skill. Launched on February 27, 2014, NASA’s new satellite project Global Precipitation Measurement Core Observatory mission (GPM) is going to make global rain and snow observations, to improve our knowledge of Earth’s water and energy circle, to help improve weather forecasts of extreme precipitation events, and therefore reduce the costs of natural disasters. One of the two core instruments aboard this satellite is the GPM microwave imager (GMI), which measures Earth’s surface and atmosphere with high spatial resolution in 13 microwave channels. In order to facilitate the application of GMI observations, Dr. Jin developed the software to excise the proxy observation in collaboration with NOAA. After the first GPM/GMI observations were provided in late March, Dr. Jin was able to quickly and successfully assimilate these observations. He will continue to assess the new GPM/GMI data quality, in addition to pursuing his efforts on assimilating TMI observations. Observations made from these two satellite instruments will be applied in the operational GEOS-5 data assimilation system in the coming year. A lead author paper by Dr. Jin was published in the Journal of Geophysical Research – Atmospheres that details a new coordinate named Tropopause- Latitude coordinate (TpLat) that he and his collaborators creatively developed. Based on varying extratropical tropopause (ExTP) locations, this new coordinate enables users to precisely analyze chemical and dynamical features at locations of the ExTP and stratosphere-troposphere exchange processes (STE) at these locations using satellite observations and GEOS-5 simulations. Since the STE processes transport 18 | GESTAR Annual Report 2013 - 2014 ozone from the middle atmosphere to the lower atmosphere, the identification of such strong STE regions made in this study provides guidelines for future studies on tropospheric air quality. In addition, the method and results in this study are very useful for diagnosing and evaluating the capabilities of chemistry-climate models. Dr. Min-Jeong Kim (sponsor: R. Gelaro) develops and tests cloud and precipitation affected microwave radiance data assimilation system at the GMAO. This involves building various components such as observation operators, quality controls, moisture control variables, observation errors, and background errors for all-sky (i.e. clear, cloudy, and precipitating sky) satellite microwave radiance data in the GEOS-5 data assimilation system, and conducting diagnostic studies to evaluate and improve those new components through OSSEs. This work will be expanded to utilize GPM microwave radiance data and to potentially generate GPM Level-4 cloud and precipitation products. The GMAO is currently working on producing high spatial (7km) and temporal (30min) resolution nature run using GEOS-5 system. In the coming year, GMI data will be simulated with this new nature run with modelled observation errors included. These simulated GMI observations will be utilized in OSSE to refine the methodologies to assimilate real GMI data in GMAO data assimilation system. Two different choices of moisture control variables were added into the GEOS-5/GSI. Background error covariance for each choice of moisture control variable was made using NMC method. The quality control process was relaxed to include all-sky AMSUA radiance data over the ocean. Observation errors for each AMSU-A channel were defined as a function of cloud liquid water path. Analysis results from these initial setup showed that using ql/qi as two separate moisture control variables generates and removes clouds more actively and that the location of liquid and ice cloud changes made more sense than when using cw(=ql+qi) as a single moisture control variable. In close collaboration with Dr. Ron Errico, good progress was made in using the GMAO OSSE to investigate the cloudy microwave radiance data assimilation system. They made simulations of cloudy and clear sky AMSU-A observations using ECMWF nature run, and added errors to those simulations through iterative error-tuning processes, comparing with innovation statistics from real data. Software to monitor behavior of total biases in the OSSE system has been developed. Future plans include the evaluation and further improvements to newly developed components by implementing forecast impact studies in addition to the OSSE experiments. In collaboration with Drs. Ron Errico and Nikki Privé, cloudy radiance data assimilation components will be applied and examined initially with AMSU-A data in GMAO OSSE system. Currently, data from AMSU-A surface channels (channels 1, 2, and 3) are not utilized in GMAO data assimilation system. To identify impacts of cloudy AMSU-A radiance data in the future, Dr. Kim ran and examined the GEOS-5 forecast experiments after adding clear-sky radiance data from these AMSU-A surface channels. Results showed that adding data from clear-sky AMSU-A surface channels did not significantly impact the analyses and forecasts. Dr. Kim and GMAO colleagues have been working to assimilate GMI data at the GMAO. To prepare for this simulation and GPM Level-4 Precipitation data product, she set up the Goddard Satellite Data Simulation Unit (GSDSU) system and modified it to be able to simulate GMI data using GEOS-5 forecasts. Additionally, she has been working to expand all-sky microwave radiance data assimilation components in GMAO ADAS to assimilate GMI data. In the coming year, observation error model and quality control process for all-sky microwave radiance data assimilation will be refined. To include microwave observations in precipitating region, including background rain and snow profiles in the observation operator will be tested. Dr. Young-Kwon Lim (sponsor: S. Schubert) supports research on climate variability and weather extremes using modeling and assimilation tools developed by the GMAO. Dr. Lim has investigated the sensitivity of tropical cyclone frequency and intensity to the change in cumulus convective activity to improve the GEOS-5 model’s ability to simulate tropical cyclones. He found that the tropical cyclone numbers and intensity over the Atlantic increases along with the increase in the minimum threshold of cumulus entrainment rate in the model. He explored the atmosphere-ocean processes that can explain the model’s sensitivity to the change in cumulus entrainment, and identified that atmosphere can be more unstable when the parameterized convection is suppressed (i.e., increase in minimum threshold of entrainment rate). The vertical profile of moist static energy and equivalent potential temperature over the storm genesis region accounts for this unstable atmosphere, especially over lower troposphere; thus, latent heat flux and humidity changes at lower atmosphere contribute to the development of moist instability, providing more favorable conditions for tropical cyclone genesis. Dr. Lim determined that the resolved-scale moist convection is more likely to occur with suppression of the parameterized convection. He presented this work at the US CLIVAR Hurricane working group meeting and has submitted a paper to a peer-reviewed journal. Going forward, he will assess improvements in predicting tropical cyclone activity with the latest version of GEOS5 model. This assessment will be conducted in consideration of tropical cyclone number, intensity, duration time, and spatial structure of strong hurricane, and will provide a better idea of how the GEOS5 high-resolution model has improved the simulation of tropical cyclone activity. Dr. Lim conducts replay runs, each allowing for constraining various components of the model’s large-scale atmosphere to remain close to the observed (MERRA) fields. Experiments conducted constrain selected scales of motion (e.g., retain only the largest planetary waves), and selected quantities (e.g., winds, humidity). In these experiments, the model-generated synoptic and smaller scale variability over the regions of interest have no direct constraints, allowing for quantitative assessments of the controls on tropical storm activity imparted by the large-scale fields. By carrying out these ensembles, Dr. Lim tries to assess the potential predictability of the Atlantic tropical cyclone provided by such constraints. Despite being recognized as one of the leading teleconnections over the North Atlantic, the East Atlantic/West Russia (EA/WR), which is characterized by two main large-scale anomalies located over the Caspian Sea and Western Europe, has not attracted any significant and detailed investigation. Dr. Lim quantified climate impact of the EA/WR on temperature and precipitation over North America, Europe and northern Africa, and investigated physical mechanisms responsible for the existence of EA/WR. These investigations by observational data analysis and stationary wave model simulation concluded that the EA/WR triggers anomalous temperature and precipitation in regional scale across the analysis domain and is closely associated with Rossby wave propagation. A stationary wave model (SWM) forced with vorticity transients in the mid-latitude Atlantic (~40°N) or diabatic heat source over the subtropical Atlantic near the Caribbean Sea produces well-organized EA/WR-like wave patterns, respectively. Sensitivity tests with the SWM indicate improvement in the simulation of the EA/WR when the mean state is modified to have a positive NAO component that enhances upper-level westerlies between 40-60°N. Dr. Lim completed writing a paper and submitted it to Climate Dynamics. Additionally, he attempted to quantitatively estimate the impact of European teleconnections on the interannual variation of East Asian winter temperature and monsoon. When he compared their impact with the impact of well-known teleconnections such as the Arctic Oscillation, the Western Pacific and ENSO, he found that EA/WR teleconnection plays a very important role in determining the East Asian winter climate and that EA/ WR tends to better represent the interannual variability of winter monsoon, cold surge and Siberian high than AO. Dr. Lim has collaborated with the US CLIVAR hurricane working group members to finalize works on climate models’ capability in reliably simulating various tropical cyclone characteristics. He also conducted this study focusing on models’ reproduction of tropical cyclone statistics with respect to ENSO phases: Eastern Pacific El Niño, Central Pacific El Niño, and La Niña. Dr. Lim has co-authored three papers on this work submitted to the Journal of Climate. Dr. Erica McGrath-Spangler (sponsor: S. Pawson) uses spacebased observations and earth system models (and their components) to further the understanding of the carbon cycle. She assesses the value of current and future carbon observing instruments (e.g., AIRS, OCO-2) for policy-relevant science questions and contributes to defining science specifications for planned missions (e.g., OCO-3, ASCENDS). Throughout the past year, Dr. McGrath-Spangler has been studying the impact of PBL depth definition on tracer transport and model climate through sevGESTAR Annual Report 2013 - 2014 | 19 eral experiments. The first is an ensemble of 10 GEOS-5 AGCM simulations for each of three PBL depth estimation methods for a total of 30 model simulations. These ensembles are being used to estimate the sensitivity of the model to the turbulent length scale (which is dependent on the PBL depth). Variations in the model climate and tracer (such as dust, CO2, etc.) concentrations are being studied. The two other experiments are long-term climatological runs of the model using (1) the bulk Richardson number based definition of PBL depth and (2) the bulk Richardson number based definition over land only and a definition using the turbulent eddy diffusion coefficient with a 10% of the column maximum threshold over water. The goal of these runs is to evaluate the sensitivity of the model climate to PBL depth. If the simulated climate is improved in comparison to observations, the default behavior of the model may be changed. A draft manuscript evaluating the impact of PBL depth on tracer transport in the GEOS-5 AGCM is in progress. During the last year, Dr. McGrath-Spangler gave several presentations related to her work with the GMAO and the use of the GEOS5 AGCM, including her presentation in March 2014 at the GMAO Constituent Assimilation Meeting. She co-authored a published paper, and was a co-investigator on three submitted proposals. Future work will involve the analysis of the long-term climatological GEOS-5 AGCM simulations in order to evaluate the feasibility of changing the default behavior of the model. Dr. McGrath-Spangler also plans to evaluate the MERRA data for a long-term trend in PBL depth consistent with the trend seen by estimating this depth from radiosonde profiles. These evaluations will be done over the Northern Hemisphere land, where the impact of satellite observational changes is minimized. Dr. Peter Norris (sponsor: A. da Silva) uses retrieved cloud data to validate cloud properties within the Goddard Earth Observing System (GEOS) model, to measure the capability of trial cloud representations, and to assimilate cloud measurements directly into the GEOS data assimilation system. Dr. Norris worked with Drs. Arlindo da Silva and Ben Auer of GMAO to test and further develop a GEOS-5 Radiation Application tool written by da Silva and Auer. The tool is used to drive the GEOS-5 radiation Grid Component using external data imports, so that GEOS-5 radiation can be run offline. He also wrote code to couple the output of the new cloud data assimilation (CDA) system with the “RadApp” tool. The goal is to look at the radiative improvements made by the CDA system, and also to test potential improvements to the GEOS5 cloud scheme. A thorough description of the RadApp tool was presented for the first time in a recent publication. The accuracy of the tool has been carefully tested as part of the CDA radiative validation study: a month-long comparison of pre- and post-CDA outgoing longwave radiation (OLR) from GEOS-5 with CERES (Clouds and Earth’s Radiant Energy System) observations showed very positive improvements by the CDA system, even without the usual radiative tuning necessary in GEOS-5. The shortwave (SW) 20 | GESTAR Annual Report 2013 - 2014 validation is currently underway and is proving both challenging and very rewarding. First, the use of the RadApp tool with SW requires a careful understanding and treatment of the timing of the full refresh and regular update phases of the GEOS-5 solar radiation code in order to get the most accurate validation possible. Second, the SW validation has necessitated the implementation of the CDA study’s new statistical cloud overlap scheme within GEOS-5’s RRTMG radiation code. This step also realizes a long-term goal of beginning to incorporate the CDA system within GEOS-5. The SW validation continues, but preliminary investigations have highlighted the need to more fully understand and accommodate details of the MODIS optical depth retrievals within the CDA system. Thus, extensive and very useful work on the SW validation of the CDA system has been conducted and continues. Dr. Norris worked with Gala Wind and Drs. Arlindo da Silva and Steven Platnick on a new high-fidelity MODIS cloud simulator, including a detailed treatment of sub-grid-column moisture variability and cloud overlap. He helped to write, edit and submit a paper to Geoscientific Model Development that described that work; he also provided extensive input to a response to reviews of the paper and made significant additions to the revised manuscript, which has since been published. He contributed a summary of his 2008 copula work to an invited review article on the Goddard Cumulus Ensemble model and its applications by Wei-Kuo Tao, et al., which was published online this past March. Finally, Drs. Norris and da Silva recently submitted to the Quarterly Journal of the Royal Meteorological Society a two-part paper that represents the main thrust of their work on cloud data assimilation over the past few years. Their CDA research was presented by Dr. Norris to a Cloud-themed GMAO Science Theme Meeting in September 2013. Drs. Norris and da Silva recently expanded the MODIS cloud simulator code to provide the optical properties of aerosols, accounting for sub-grid scale humidification, in preparation for work on aerosol retrieval with their collaborator, Gala Wind. Dr. Norris also worked on and delivered a new driver tool for aerosol optical properties that provides the full phase function for aerosol scattering, in addition to the aerosol optical thickness, single scattering albedo and asymmetry factor provided by the previous tool. The tool is callable directly in FORTRAN for incorporation into the MODIS radiative transfer codes used by Gala Wind. Additionally, Dr. Norris performed a preliminary validation of the top-of-atmosphere radiative fluxes and gross cloud properties of GMAO’s new nature run against CERES products. Preliminary results were presented in early April and work continues. The work has helped to diagnose key interpretation issues for MODIS optical thickness retrievals that feed back into the cloud data assimilation work. Dr. Nikki Privé (sponsor: R. Gelaro) supports projects in atmospheric data assimilation, especially regarding the use of current and future space-based observations. This includes diagnostic studies to evaluate and improve the use of observational data as well as running and interpreting observing system simulation experiments. The testing and interpretation phases require applying theory and experience to explain sometimes unintuitive responses to often complex algorithms. This past year, Dr. Privé developed an «identical twin» framework for the GMAO OSSE in order to study the role of model error in forecast error growth. An identical twin OSSE is considered a «perfect model» scenario in which there is no model error. By comparing the results of identical twin experiments with the full GMAO OSSE, the impacts of model error can be determined. To create the identical twin OSSE, the GEOS-5 forecast model was run without ingesting observations to generate a “free” run for two months. This free run was treated as the Nature Run, or ‘truth’, used for verification of the experimental forecasts and for generating synthetic observations. A complete set of simulated observations was created for the identical twin OSSE, including appropriate observation errors. The simulated observations were then ingested into the GEOS-5/ GSI forecast model to create numerical weather forecasts. It was found that model error is a significant contributor to the evolution of forecast skill. In cases with no model error, the forecast skill showed an improvement in skill compared to cases with model error equivalent to a decrease in a forecast lead time of two days in the extratropics and four days in the tropics. The analysis error is greatly decreased in the identical twin experiments compared to cases that include model error, even when observation errors of similar magnitude are included in the simulated data. The results of this experiment have been published in the Journal of Geophysical Research. Dr. Privé also performed an OSSE experiment to investigate the impact of including supplemental rawinsonde observations at 0600 and 1800 UTC. In regular operations, the vast majority of rawinsondes are launched only at 0000 and 1200 UTC, but supplemental rawinsondes are sometimes added in order to improve the forecast in high-impact synoptic situations, such as severe weather outbreaks or land-falling hurricanes (such as Hurricane Sandy). By adding supplemental rawinsondes, the short-term forecast was improved not just for the 0600 and 1800 UTC cycle time forecasts, but also for the 0000 and 1200 UTC cycle time forecasts, due to the improved quality of the model background field. A manuscript describing these results is currently in press with Monthly Weather Review. Another OSSE experiment was performed to investigate the spectra of forecast error growth in numerical weather prediction. The spectra of error growth in the real world are very difficult to analyze during the early forecast period because there is no suitable field for verification, but these spectra can be calculated directly in the OSSE. The error spectra for two-week forecasts were calculated in a series of test cases. The results of these experiments are currently under review and will be the subject of a future publication. The GMAO OSSE has been updated to a more recent version of the GEOS-5 forecast model in order to allow the use of newer data types such as GPS-RO and to eliminate some deficient aspects of the older model versions. The OSSE will be validated against statistics of the data assimilation of real observation and of forecast skill. A control case will be run for validation of forecast skill and to act as a baseline case for further OSSE studies. Dr. Oreste Reale (sponsor: S. Schubert) supports scientific research on climate variability and tropical storms using highresolution versions of the GEOS-5 atmospheric model developed by the GMAO. In particular, he evaluates the sensitivity of the representation of tropical storms in GEOS-5 to model resolution. Over the past year, Dr. Reale has contributed to the evaluation of several experiments performed by Dr. Young-Kwon Lim and has co-authored an article with Dr. Lim (first author), Dr. Schubert, and other GMAO scientists, to explore the sensitivity of hurricane activity to changes in the convective parametrizations. He also has been involved in the evaluation of several long-term simulations, “Nature Runs”, of the Earth Atmosphere, designed for possible use in Observing System Simulation Experiments (OSSEs) and produced by Dr. Putman (GMAO) with the experimental ultra-high resolution cubed-sphere GEOS model in a variety of different configurations. Among all of the possible simulations, one produced by the c1440 version of the cubed-sphere GEOS-5, at a resolution of about 7 km, and in a fully non-hydrostatic mode, was selected in 2014 by Dr. Putman and the GMAO to become the next-generation GMAO Nature Run. Since then, Dr. Reale has been extensively analyzing this run, in collaboration with GMAO scientists, to assess the quality of simulated cyclones and more generally investigate the realism of the tropical atmospheric dynamics, and the tropical-extratropical interactions. Two related presentations were delivered at GMAO Science Team meetings. Further, Dr. Reale has co-authored (as second and corresponding author) an article which investigates in depth a less-known 6-9 day time scale in the African Easterly Waves, different from the widely studied 3-6 day time scale. The article discusses the structure of such waves and attributes to them an important role in tropical-extratropical interactions. Dr. Cecile Rousseaux (sponsor: W. Gregg) conducts research on ocean phytoplankton populations using the GMAO NOBM. Last fall, Dr. Rousseaux modified the GEOS5 NASA Ocean Biogeochemical Model (NOBM) so that it would also use variable atmospheric forcing files. She learned to use Concurrent Versions System (CVS) to create tags and manage code development, as well as importing/exporting new variables throughout the code. Learning CVS also was necessary when supporting other GMAO team members, GESTAR Annual Report 2013 - 2014 | 21 including Christian Keppenne, for whom Dr. Rousseaux provided the latest tags, new forcing files and data sets. She continues to maintain all the forcing data and validation data to keep NOBM up to date, which involves downloading, regridding and reformatting the data throughout the year. This included MODIS Aqua (chlorophyll, particulate inorganic carbon and remote reflectance), Suomi-NPP (chlorophyll and remote reflectance), and the forcing data necessary to run the NOBM (MERRA, ozone from OMI, clouds and aerosols from Aqua and Terra). Dr. Rousseaux continues to collaborate with Michelle Gierach on their funded proposal on the “Variation in phytoplankton composition associated with El Niño Southern Oscillation (ENSO) diversity in the Equatorial Pacific Ocean”. She has also begun working with Dr. Nowicki and others on their funded proposal on “Feedbacks, Processes and Impacts of Contemporary Changes in the Arctic”. Finally, she continues to provide support to end-users who download and use data from the Giovanni or the NASA GMAO ftp website. Going forward, Dr. Rousseaux will continue to provide support in integrating the NOBM in GEOS5, will update the forcing and assimilation data required to run the NOBM and will provide support to end-users. This past year, Dr. Rousseaux has been a lead author on one published paper, a co-author on two publications, and is a co-author on one in progress. She is also the lead author of a report written as a result of a 3-day meeting organized to identify potential areas of collaboration on the topic of carbon between JPL and NASA GSFC with Deputy Director Piers Sellers. She participated in this meeting that was supervised by Dr. Sellers and that was held in order to establish the current state of knowledge and capabilities and the potential benefits of a ‘Carbon Climate Program’. At Dr. Sellers’ request, Dr. Rousseaux wrote this report on the state of knowledge of carbon in the oceans for NASA HQ and collected the reviews and input from her peers. She is also PI on one proposal, and a Co-Investigator on three more, as well as a Co-I on an upcoming proposal. Her research results were presented in several talks, locally, nationally and internationally. She also chaired a session at the Ocean Science Meeting 2014 (Honolulu, HI). She will be participating in the OCB workshop in July 2014 and will present a talk at the Ocean Optics Conference in Maine in the fall. Dr. Yury Vikhliaev (sponsor: B. Putman) continued working on the development of the GEOS-5 Atmosphere-Ocean General Circulation Model (AOGCM), a coupled climate model developed at the NASA GMAO. Its main components are the atmospheric model, the catchment land surface model, both developed by the GMAO, and MOM4, the ocean model developed by the Geophysical Fluid Dynamics Laboratory. In order to address model biases, 20 multidecadal and multi-century climate simulations were conducted and analyzed. An atmospheric component of the coupled model was updated to Ganymed-4 version. Despite many improvements in the new version of AOGCM, the update resulted in the deterioration of some aspects of model climate, which included 22 | GESTAR Annual Report 2013 - 2014 an unrealistic warm bias in sea surface temperature (SST) and unrealistic tropical climate produced by the model. The SST bias was addressed by re-tuning the moist physics. It was found that deterioration of tropical climate is due to increased error in cloud radiative forcing (CRF) over subtropical oceans. This error is currently being addressed. He also prepared and tested a version of AOGCM with non-Boussinesq ocean component. This configuration will be used in future data assimilation and forecast systems. In the coming year, model biases over subtropical oceans and over ocean boundary currents will be addressed in order to integrate the new version of the model into data assimilation and forecast systems. Dr. Vikhliaev analyzed a long-term climate drift in the GEOS-5 AOGCM, and found that this drift is consistent with the weak Atlantic meridional overturning circulation (AMOC). A sensitivity of AMOC to parameterization of river runoff, ocean lateral diffusion, bottom drag and vertical mixing was analyzed in a set of multi-century simulations. As a result of this effort, a model configuration which produces a stable AMOC for several centuries was prepared. A future collaboration with NOAA NCEP and the Atmospheric Physics department at the University of Maryland is planned for working on the GEOS-5 AOGCM configuration with high resolution (0.25 degree) atmospheric and ocean components. Dr. Brad Weir (sponsor: S. Pawson) assimilates atmospheric CO2 observations into the GEOS-5 DAS and participates in research studies aimed at evaluating observations from AIRS, GOSAT, and OCO-2 data using GEOS-5, and applies these toward understanding the carbon cycle. Dr. Weir has given two presentations, one in California and one in The Netherlands on related work. He continued the implementation of trace gas assimilation in GEOS-5 to include observations of carbon monoxide and dioxide. This included writing utility scripts that download and process the level-2 carbon monoxide data from the Measurements of Pollution in the Troposphere (MOPITT) instrument on NASA’s Terra satellite and the carbon dioxide data from the Greenhouse Gases Observing Satellite (GOSAT) processed as a function of the Atmospheric CO2 Observations from Space (ACOS) task. He also developed the procedures for the assimilation of general trace gas observations in GEOS-5 and tuning the necessary error covariances. Future work will involve exploring the use of ensemble methods to generate error covariance matrices in the trace gas assimilation. Dr. Weir will have to investigate the variety of approaches, as each has its benefits and drawbacks. Determining the most suitable will likely depend on the particular qualities of the trace gas estimation problem. CODE 610.2: GLOBAL CHANGE DATA CENTER Dr. Radina Soebiyanto (sponsor: R. Kiang) utilizes remote sensing technology to monitor, predict and facilitate the control of infectious disease transmission. The objective is to develop empirical and theoretical models and techniques that can be used by public health organizations for disease surveillance and control. This past year, Dr. Soebiyanto has worked on assessing the role of meteorological parameters in influenza activity in countries with temperate, sub-tropical and tropical climate. Her studies indicated that specific humidity was consistently associated with influenza activity in all regions. In temperate countries, she found an inverse relationship between influenza and specific humidity. However, in the tropics and in a few coastal locations, specific humidity was proportionally associated with influenza. She found that temperature was an important determinant for influenza in the temperate region, but not in the tropics and sub-tropics. She has worked on three manuscripts on this topic; one is in press while the others are in review and in preparation. In the coming year, Dr. Soebiyanto will continue her influenza work. She plans to develop decision tools that provide meteorological time series that are associated with influenza and also provide projected influenza activity based on changes in the meteorological condition. Dr. Sushel Unninayar (sponsor: S. Wharton) will continue to provide scientific coordination/integration of the interagency USGCRP/CCSP Global Water Cycle Working Group and interlinks with Atmospheric Chemistry, Climate Variability and Change, Land Use and Land Surface Change, Ecosystems, Human contributions and Decision Support Systems, among other national and international programs. He has focused on resolving current deficiencies in observing and modeling systems with a priority on soil moisture, evapotranspiration and ground water, in addition to precipitation, among others. He continued international coordination efforts to (a) develop a framework for the IGWCO (and NASA) contributions to and interaction with the Intergovernmental Panel on Climate Change (IPCC) with a focus on “Hydroclimatic Change and Extremes,” and (b) the downscaling of global observing systems data and global climate change/variability model output for improved accuracy on regional and local scales as an effort to support decision making in water and other resource management applications. These critically important aspects of global change are considered essential for improved assessments of the impacts of global climate change on the regional terrestrial water cycle processes. They would also lead to more precise information required for policy guidance on adaptation/mitigation options. These activities are expected to continue over the next decade. Collaborators with NASA on this project include international and national organizations and agencies. Dr. Unninayar was invited again by the IPCC as an expert reviewer for the IPCC-AR5 Science Assessment report to Governments. He was also invited, in early 2013, as Coordinator of the GCRP/GWC, member of the GEOSS/IGWCO, and expert on integrated assessments, to review Chapter 23 (Europe) of IPCC/WGII-AR5 (Impact, Adaptation, and Vulnerability). This past year he continued as lead author for several sections and chapters of the GEO/GEOSSIGWCO Water Strategy for the next decade titled “from Observations to Decisions”. Topics included: integration across the water cycle and beyond; the role of research in integration; water cycle data integration; water cycle model integration; representing the water cycle in Community Earth System Models; land data assimilation systems; the impact of water cycle observational and modeling error on end user applications, observations to support climate change impact assessments and adaptation, among others. The water strategy report was published in February 2014 following almost two years of drafting and reviewing, followed by approval by the GEO plenary. Prior to the finalization of the Water Strategy Report, Dr. Unninayar contributed substantially to the finalization and drafting of the Summary Report of the Water Strategy for submission to the GEOSS Ministerial Conference. Dr. Unninayar submitted several actions for incorporation in the Group on Earth Observations (GEO) 2012-2015 strategic work plan. In late 2013 he was invited to be an expert reviewer for the audio/video script being prepared by an international team in Switzerland for submission to the GEO Ministerial Summit. The audio-visual covered the global water cycle with depictions of live imagery from the International Space Station, followed by more regionally focused land surface satellite imagery, plus depictions of the water cycle from the surface. Coverage was globally comprehensive from the mountains of the Himalayas to the clouds over Lake Geneva. In March 2014, he was invited to submit a white paper to a meeting of the GEOSS URR (User Requirements Registry) in Geneva, Switzerland. His contribution included the definition and specification of Essential Water Variables (EWVs), the consolidation of water cycle observational and modeling requirements of user needs covering over 75 user sectors, and assessment of data assimilation and modeling requirements. In March-April 2014, Dr. Unninayar developed a comprehensive conceptual framework for advancing the end objectives of the GCRP as well as the UN/IPCC and particularly the GEO and GEOSS titled “Enhanced Decision Making Using “Cloud-Based” Observations, Models, and Analytical Tools” [Initial Priority on Essential Water Cycle Variables]. An initial emphasis was suggested on Essential Water cycle Variables, though the principle would apply to all GEOSS observations. The basic proposition is to examine how to address the missing linkages between the statement “observations are useful for......,” and the end point, such as specific research and applications and end user decisionmaking products, i.e., the construct of a potential GEOSS-AI system that contains the elements necessary to deliver the end product application. The user specifies what they need as an end product and the “system” formulates the rest, and suggests how to construct their application with the modules within the system (of systems). To meet this design consideration, all modules would need to be placed on a “cloud-based” infrastructure in a standardized and inter-compatible format, and maintained jointly by collaborating parties. Work will continue on developing a conGESTAR Annual Report 2013 - 2014 | 23 ceptual framework for implementation into a GEO-AI system with the structural framework to facilitate “Enhanced Decision Making Using “Cloud-Based” Observations, Models, and Analytical Tools” with the initial priority on essential water cycle variables. Plans include initiating discussion and collaboration for the design of the components required for an early demonstration prototype for such a system. CODE 612: MESOSCALE ATMOSPHERIC PROCESSES LABORATORY Dr. Jiun-Dar Chern (sponsor: W.-K. Tao) works on developing a Multiscale Modeling Framework (MMF) based on NASA’s stateof-art global atmospheric models (i.e., GEOS4 and GEOS5) and cloud-resolving model (i.e., GCE). The idea is to use the cloudresolving model in each column of a general circulation model to explicitly represent cloud-scale processes. Another goal is to use NASA satellite products to improve cloud microphysical schemes in the cloud-resolving model. A MMF model uses a two-dimensional cloud-resolving model (CRM) in each grid column of a general circulation model (GCM) to represent cloud and mesoscale dynamics and physical processes in place of cloud parameterizations in a convection GCM. The MMF approach shows the ability to simulate the Madden-Julian Oscillation (MJO), the diurnal cycle of precipitation, and other phenomena that have presented challenges for convectional GCMs. The performance of a MMF highly depends on how the parameterizations of microphysics, radiation, and turbulence operate on the CRM’s grid. In Dr. Chern’s study, a new Goddard four-ice (cloud ice, snow, graupel, hail) one-moment bulk microphysical scheme has been successfully developed and implemented into the Goddard MMF to account for hail habit and its interactions with other hydrometeors. More than 20 two-year MMF experiments were conducted to evaluate the role of each new processes and the overall performance of this new scheme. The performance of the MMF was evaluated against CloudSat/ CALIPSO cloud ice data set and TRMM precipitation and radar reflectivity data set; the MMF with the new Goddard 4-ice scheme outperforms the one with the Goddard 3-ice one-moment bulk scheme. Dr. Chern worked on preparing the MMF data set for the GPM Retrieval Algorithm Development Teams. With global coverage, the MMF can provide detailed cloud properties such as cloud amount, hydrometeor types, and vertical profile of water contents at high spatial and temporal resolution of a cloud-resolving model. When coupled with the Goddard Satellite Data Simulation Unit (GSDSU), a system with multi-satellite, multi-sensor and multi-spectrum satellite simulators, the MMF system can provide radiances and backscattering similar to what satellite directly observed. From a study conducted over the past year, a simulation provided more than 300 million vertical profiles of cloud data set in different season, geographic locations, and climate regimes. This cloud data 24 | GESTAR Annual Report 2013 - 2014 set is used to supplement observations over data-sparse areas for supporting GPM algorithm development. When the model’s simulated mean and variability of surface rainfall and snowfall, cloud and precipitation types, cloud properties, radiances and backscattering were evaluated against satellite observations, the results of the new data set are much better in heavy precipitation intensity, radar reflectivity, and brightness temperature than the MMF data set provided to the GPM algorithm development teams in 2012. NASA’s latest reanalysis, the Modern-Era Retrospective analysis for Research and Applications (MERRA), has shown significant improvement over previous reanalyses and is equivalent in skill to the ECMWF-Interim reanalysis in terms of global, continental and basin scale climatological precipitation. However, details of regional water cycles still exhibit biases that result from model physics uncertainties interacting with an observation suite that varies in space and time. This study uses MERRA moisture budget, analysis increment and Gridded Innovations and Observations (GIO) data set to better understand the relative contribution of observing system on a unphysical positive moisture flux divergence (MFD) over the Great Plains from 2001 to 2012. From the time series and diurnal cycle of moisture budget and analysis increment, it is shown that the MFD feature is not persistent throughout the period of the satellite era reanalyses, but has an abrupt transition in around 2000. The sharp jump of water vapor being added through the analysis at 06Z and 18Z is contributing to the regional MFD bias. Dr. Chern will conduct further examination of the contribution of each observing systems’ effect on the abrupt transition by using the MERRA GIO data set and sensitive experiments of the data assimilation system. Dr. Mei Han (sponsor: S. Braun) applies satellite-based observations from NASA satellites (TRMM, Aqua, and GPM) and numerical models (MM5 and WRF) to study precipitation associated with extratropical cyclones over ocean and land, and evaluates the performances of cloud and precipitation models and retrieval algorithms in the middle latitudes. Dr. Han conducted a study to investigate the performance of a Spectral Bin Microphysics (SBM) scheme, the Hebrew University Cloud Model for a heavy precipitation event during the Hydrometeorological Testbed (HMT) field campaign. Using the Weather Research and Forecasting (WRF) model and the Goddard Satellite Data Simulator Unit (G-SDSU), she assessed the model simulations as compared to Aqua satellite observations. The simulations with the HUCM scheme perform well as compared to the passive microwave sensor (AMSR-E) for the precipitation over the Sierra Nevada Mountains in California; however, a notable bias is in the magnitudes of the simulated radar reflectivity as compared to ground-based S-band radar observations. Several sensitivity simulations related to testing the snowflake breakup coefficient and ice nuclei concentration have been conducted. In the first sensitivity test, the breakup process was employed to a wider range of particle size bins. As a result, the spectrum of snowflake mass became more continuous. Precipitation particle size distribution (PSD) of the snowflakes also showed a shift toward smaller sizes. This change eventually resulted in an improvement of the simulated radar reflectivity. In the second sensitivity test, high ice nuclei concentration contributed to a slight increase in snow mass. However, it does not influence the size spectrum of the snow particles. The increase of snow mass was associated with a slight decrease of cloud water and graupel; as a result, the simulated brightness temperature retains a good agreement as compared to the AMSR-E observations. No improvement of simulated radar signals was made. Dr. Han also analyzed mass-weighted terminal velocities of different hydrometeors in SBM simulations and compared them to 4-bulk schemes. SBM simulation generally has a broader range of terminal velocity given the same amount of precipitation mass. A journal paper is in preparation to report the scientific findings of this study. This study was also presented at the AMS 15th Conference on Mesoscale Processes and at the 2013 AGU Fall Meeting. A new study of synoptic snow storms occurred on Feb 24, 2012 while the GPM Cold-season Precipitation Experiment (GCPEx) was being carried out. In addition to the brief analyses of a wide variety of observational data obtained during the campaign, Dr. Han chose to put emphasis on analyzing the NMQ (National Mosaic and QPE) data provided by NOAA/NSSL for the current stage of this study. The NMQ hourly precipitation rate and 3-dimensional reflectivity mosaics clearly depicted the evolution and structure of the storm. She also conducted multiple simulations with a new version of the WRF model and the G-SDSU. The simulations with a relatively confined coarse domain replicate well the general synoptic to mesoscale characteristics of the storm. Evaluations are being carried out to assess the dynamic and physical feature of the storm. Other research involves the examination of the spatial distribution of cloud and precipitation species and vertical air motion in the WRF simulations of two events in different field campaigns. Currently Dr. Han is investigating the radar signals simulated by G-SDSU at different frequencies. Dr. Hyokyung Kim (sponsor R. Meneghini) is involved in the international satellite mission between US and Japan, the Global Precipitation Measurement mission (GPM), with regard to the algorithm development of precipitation retrieval from the Dual-frequency Precipitation Radar (DPR) onboard the GPM core satellite. She works with Dr. Meneghini, who is in charge of developing the Surface Reference Technique (SRT) algorithm that estimates the Path Integrated Attenuation (PIA) by precipitation in propagation path from the satellite to the surface and provides true parameters related to the precipitation estimation as well as true PIAs to aid the better understanding of algorithm performance. When the launch date of the GPM satellite was fast approaching, the algorithm development team integrated the algorithm codes submitted by each developer, released the first algorithm codes at launch version, and has continued distributing the modified codes to improve retrieval algorithm. Dr. Kim tested and evaluated the performance of the SRT algorithm to each version of algorithm codes with simulated radar data using the WRF model during the Mid-Latitude Continental Convective Clouds Experiment (MC3E), 2011 and the Light Precipitation Evaluation Experiment (LPVEx), 2010. When she investigated the behaviors of estimated PIAs from the simulated test data for MC3E and LPVEx field campaign by comparing them with the true PIAs, she found that the surface return echo power at Ka-band used to drop below the noise power due to the strong PIA under the heavy rainfall circumstance like MC3E, known as the saturation effect. However, this saturation effect didn’t appear at Ku-band because of its relatively lower frequency than Ka-band. The break point for the saturation depends on the surface type and the incidence angle: the more the incidence angle increases, the more likely an occurrence at the weaker PIA. SRT codes are being modified to distinguish the failure of PIA estimation. Although surface data from multiple range gates are usually available at off-nadir incidence angles, the current version of SRT algorithm for PIA estimation used a single gate, which has the peak surface return power among the range gates. PIA estimation at a single gate might cause errors under the non-uniform beam filling (NUBF) condition. To improve estimates, Dr. Kim modified the radar simulator to create the Level1 test data for a multi-beam solution in PIA estimation and helped colleagues modify the SRT codes to implement the use of multi-beams. Preliminary results showed some improvement on precipitation retrieval over the standard SRT methods. With the launch of the GPM core satellite, information of global precipitation will be provided in real-time. Dr. Kim and her colleagues will evaluate the performance of the SRT method from the observed DPR data and also contribute to improving the performance of PIA estimation by implementing the multi-beam SRT method. Dr. Xiaowen Li (sponsor: W.-K. Tao) uses the Goddard cloudresolving model and satellite plus field observations to study clouds, precipitation processes and their roles in radiation and climate. Over the past year, Dr. Li implemented and tested a new microphysical scheme, the 2-moment Morrison Scheme, into the Goddard Cumulus Ensemble (GCE) model. This is an important step for the cloud modeling groups’ AIST proposal, and it expands the research capability of GCE model. The new scheme has been tested using the International Cloud Experiment (TWP-ICE) case and shows good agreements with the existing microphysical schemes in GCE. Further, her studies include three cases of aerosol-cloud-precipitation interactions using both the 2D and 3D spectral bin scheme in GCE model: the TWP-ICE field campaign, the Tropical Ocean and Global Atmosphere Coupled Ocean-Atmosphere Response Experiment (TOGA COARE) and the Preliminary Regional Experiment for STORM-Centeral (PRESTORM). Dr. Li also is part of a team studying the initiation of the Madden-Julian OscilGESTAR Annual Report 2013 - 2014 | 25 lation (MJO) during the DYNAMO field campaign using both GCE model and Weather and Research Forecasting (WRF) Model. The emphasis is on the cloud structure evolution during the transition period from shallow convection to deep convection. Research results were shared at three meetings this past year. She has worked closely with specialists at NASA Advanced Supercomputing Division to improve GCE model performances and visualizations of model data. The spectral bin microphysics is now running x10 faster as a result of reindexing the codes. Highlights were presented at a conference. Other work involved Dr. Li’s participation in the case study during the Midlatitude Continental Convective Cloud Experiment (MC3E), a joint field experiment with NASA GPM ground validation and DOE ASR program. The in-situ measurements of ice particle spectra were compared with model simulations for the trailing stratiform region. Results showed that the model underestimates ice particle number concentrations. A related paper is in progress. Dr. Liang Liao (sponsor: R. Meneghini) conducts research on a variety of topics associated with airborne and spaceborne weather radar analysis generally and the TRMM Precipitation Radar (PR) and GPM Dual-Wavelength Precipitation Radar (DPR) specifically. The work includes single- and dual-wavelength radar analysis of hydrometeor profiles, simulation of polarimetric radar signatures in rain and snow, retrieval of the microphysical properties and characteristic parameters of drop size distribution using data from dual-wavelength airborne weather radar, and the validation of the TRMM standard products using ground-based measurements. Over the past year, an effort has been made to test and evaluate the results of currently developing dual-wavelength precipitation radar (DPR) algorithms in estimates of surface rain rate. A set of plotting routines have been developed enabling effectively accessing the data and comparing them with truths. Dr. Liao will continue to explore new fields that can improve and enhance the GPM radar algorithms for detection and estimates of precipitation rate. Dr. Liao and colleagues developed a framework based on measured rain-drop size distribution (DSD) data to assess uncertainties in DSD models employed in Ku- and Ka-band dual-wavelength radar retrievals. In this study, the rain rates and attenuation coefficients from DSD parameters derived by dual-wavelength algorithms are compared with those directly obtained from measured DSD spectra. From their studies, they compared results that showed that the retrieval errors from the mu-lambda relations are generally small and comparable with the results from a fixed-mu gamma model with mu equal to 3 and 6. The DSD evaluation procedure is also applied to retrievals in which lognormal DSD model is used. Additionally, combining measurements of Doppler velocities and Ku-band radar reflectivity from Ku- and Ka-band dual-wavelength radar provides the potential to differentiate hydrometeor phases 26 | GESTAR Annual Report 2013 - 2014 within storms because of apparent differences in Doppler velocities between snow and rain. A theoretical model was used to compute radar reflectivity factors and Doppler velocities at Ku- and Ka-band as well as their ratios, defined as differential frequency ratio (DFR) and differential Doppler velocity. A Ku- and Ka-band airborne Doppler radar, designed by NASA Goddard, was deployed in MC3E field campaign, and its measurements were employed for such studies. Preliminary results show promise in identifying various phases of hydrometeors, although further detailed studies are needed to explore the full capability of dual-wavelength radar in phase identification when the Doppler velocity is involved. Dr. Jainn Jong (Roger) Shi (sponsor: W.-K. Tao) studies physical and dynamical processes related to convective-to-regional-scale precipitation systems. Dr. Shi has worked toward developing an aerosol wet deposition/scavenging process in the newly developed aerosol-radiation-microphysics coupling code in the NASA Unified Weather Research and Forecasting (NU-WRF) Model. Aerosols affect the Earth’s radiation balance directly and cloud microphysical processes indirectly via the activation of cloud condensation and ice nuclei. These two effects have often been considered separately and independently, hence the need to assess their combined impact given the differing nature of their effects on convective clouds. To study both effects, an aerosol-microphysics-radiation coupling was implemented into the NU-WRF model. Under this current research effort, a new aerosol wet deposition scheme was developed and added into Goddard cloud microphysics scheme. The new scheme includes below-cloud wash out and in-cloud scavenging through condensation nuclei activation. For the wash out process, when the precipitation particles fall through the atmosphere, they collide with aerosol particle, collect some of them, and eventually bring the aerosol particles to the ground (if the precipitation particles reach ground). For in-cloud scavenging, each aerosol concentration is reduced when cloud condensation and ice nuclei activation occurs, but partially regain the loss when evaporation and sublimation occur. The effort also includes adding aerosol coupling into the new Goddard 4ice cloud microphysics scheme in the NU-WRF. A series of NU-WRF simulations with aerosol coupling was conducted for interaction of biomass burning and monsoon water cycle over southeast Asia. Results indicated that the increase of aerosols due to biomass burning results in the increase of the cold rain (snow, graupel and ice) above the melting level and the decrease of small liquid particle (cloud) and increase of large liquid particle (rain) below the melting level over southeast Asia. However, over southeast China, the impact by the biomass burning aerosol on the small liquid particle (cloud, the dominating cloud hydrometeor), which was reduced by about 50%, was more profound. The model results were presented at the 2013 AGU Fall Meeting. Dr. Shi was one of many who conducted simulations of Hurricane Sandy, a Category-3 hurricane that spanned the east coast of the Simulations & Results for Hurricane Sandy (Oct 2012) Hurricane Sandy, a late season Category-3 hurricane, began as a tropical low in the Caribbean Sea on Oct. 22, 2012. During its life span, the system strengthened into a hurricane as it moved northeastward, parallel to the coast of the southeastern United States. Turning northwestward on Oct 29th, it eventually made landfall near Brigantine, NJ 70-kt maximum sustained winds. Because of its tremendous size and strong wind, Sandy drove a catastrophic storm surge into the New Jersey and New York coastlines. Preliminary U.S. damage estimates are near $50 billion as reported by the National Hurricane Center. Most of Dr. Roger Shi’s work was done on the ensemble WRF simulations of Hurricane Sandy (2012) using NU-WRF model with a hypothesized future sea surface temperature (SST) due to the global warming. Ten NU-WRF simulations with a 10-km resolution were begun between 00UTC Oct. 22 and 00UTC Oct. 23, 2012 and ended on 12UTC Oct 31, 2012, where five simulations used the present-day SST and five used the aforementioned hypothesized future SST. Results show that the simulations with the present-day SST made an excellent forecast on the landfall location that is almost identical to the observed location. However, the simulated hurricane made the landfall about 12 hours earlier than the observed landfall time. Model results indicate that the reason Sandy turned northwestward on Oct 29 was the blocking pattern over the North Atlantic and the upper level trough just east of the Great Lakes. Results also show that the higher future SST would have a profound impact on the intensification and tracking of Hurricane Sandy. The simulated hurricanes with the future SST tends to intensify into a gigantic Category-5 storm and move east toward the Atlantic Ocean. Hurricane Sandy during its track from the Bahamas until its landfall in New Jersey. WRF max. DBz and 900mb wind vectors. (Credit: Roger Shi) U.S. in October 2012. His studies and results are described in more detail in the sidebar (above). Dr. Shi continues to study dust/aerosol impact on hurricanes in the Atlantic basin using the NU-WRF/WRF-Chem. Dr. Jason Sippel (sponsor: S. Braun) conducts research to understand hurricane formation and evolution through ensemble forecasts and data assimilation. Over the past year, most of his research efforts have been geared toward utilizing an ensemble Kalman filter (EnKF) with data gathered from NASA’s Global Hawk to analyze the impact on hurricane analysis and forecasts. Most of the effort has been focused on using observations from the high-altitude imaging wind and rain airborne profiler (HIWRAP), a new Doppler radar mounted upon the Global Hawk. The major benefit of the Global Hawk system is a 25-30-h flight time, which allows for much longer range and on-station capabilities than conventional aircraft. The results from the previous year’s experiments with the HIWRAP data suggest that it can be useful for hurricane analysis and forecasting. In particular, it will be more useful to assimilate estimated horizontal wind components than to assimilate radial velocity directly. The horizontal winds are estimated by fitting a sinusoidal curve to the velocity data, and this method has the benefit of avoiding vertical velocity during the assimilation process. From mid-August through mid-September Dr. Sippel participated in the Hurricane and Severe Storm Sentinel (HS3) field campaign. He traveled to NASA’s Wallops Flight Facility near Chincoteague, VA to participate in the second year of the field phase of the campaign. He was there for roughly one month, during which he served as a mission scientist during several research flights. He summarized his research in a talk at the annual HS3 Science Team Meeting in May. In the coming year, he will continue work on assimilation experiments for Global-Hawk-based instruments. Recent work has shown that data from the HIWRAP radar can improve hurricane analyses and forecasts, but the usefulness of other Global-Hawkbased instruments needs to be examined. In addition to the HIWRAP data, Dr. Sippel plans to assimilate dropsonde and scanning High-resolution Interferometer Sounder data from Hurricane Nadine, which occurred during the 2012 HS3 campaign, the objective being to obtain accurate analysis of these tropical cyclones with an EnKF, which can then be used to investigate the dynamics of Nadine’s intensification and interaction with the Saharan Air Layer. He also will be heavily involved in the HS3 field campaign again. Extensive planning will take place during the summer of 2014, and the first deployment of the campaign will occur from the middle of August through the end of September 2014. As coGESTAR Annual Report 2013 - 2014 | 27 investigator for HS3, he will be actively involved in decision making for which systems/cyclones to observe and how to observe them. Outreach efforts will also continue, especially toward the Morgan State University chapter of NASA’s SEMAA program (Science, Engineering, Mathematics and Aerospace Academy). He is also working with NASA’s Ames research center and the Baltimore SEMAA program to plan a SEMAA field trip to NASA’s Wallops Flight Facility so students can see real-time operations for the HS3 Field Campaign. examine the radiative impacts of cloud regimes, she used the SYN 1-deg (combined Aqua and Terra) daily CERES product, which was spatially matched with the MODIS-Aqua 1-deg daily TAU-CTP cloud regimes in order to calculate the nine-year annual mean SW, LW and net CRE of each regime along with its contribution to the respective CREs of the entire geographical zone. Looking ahead, Dr. Cho will be examining whether aerosol anomaly effects on clouds can be detected by examining intra-regime variability using TAU-REFF cloud regimes. Dr. Lin Tian (sponsor: G. Heymsfield) conducts research to improve satellite rain retrieval algorithms. Global rain measurements are important for advancing our understanding of Earth’s water and energy cycle, and can improve forecasting of extreme events that cause natural hazards and disasters. Dr. Tian’s efforts have been directed toward improving microphysical assumptions, such as particle size, phase, and distributions, for GPM rain retrieval algorithms, through airborne radar and radiometer, aircraft in-situ microphysics, and ground-based measurements: Over the past year, Dr. Tian took the lead on analyzing multi ground-based polarimetric radars and airborne radar measurements to understand dual-wavelength (Ku/Ka) observations in deep convective storm. She presented her results at a national and an international conference. Toward the same goal, she has evaluated the particle models to be used for radar-radiometer combined algorithm. In collaboration with Drs. Olson and Grecu, Dr. Tian has analyzed aircraft microphysics data from MC3E to derive the particle size parameters which were used to validate theoretical model. She is a member of the NASA GPM radar and radar-radiometer combined algorithm team. Dr. Manisha Ganeshan (sponsor: D. Wu) analyzes GPS radio occultation data to derive atmospheric boundary layer (ABL) properties and study their climatological variations with a focus on the Arctic region, working with radiosonde observations as well as GPS data to examine seasonal and interannual variability over the data sparse region of the Arctic. She also collaborates with Goddard scientists to compare GPS-derived ABL characteristics against global and regional models, reanalyses, and other independent satellite observations. From her recent research, ground truth or radiosonde observations were obtained from SHEBA campaign (over sea ice) and Japanese MIRAI cruise ship (over open water). The vertical derivative of the refractivity (dN/dZ) was derived and compared between GPS and radiosonde profiles. Qualitatively, there is a good agreement. In general, the GPS data is able to capture the variability related to surface-type (sea ice vs. open water) as well as due to seasonal forcing. The shape of the ‘dN/dZ’ profiles was further explored with an aim to develop a numerical algorithm for obtaining boundary layer properties. Dr. Tian also has focused her research on the development, and eventual implementation, of a wind retrieval algorithm in hurricane from observations of HIWRAP (a downward conical scanning Doppler radar flown on NASA Global Hawk) during NASA’s GRIP field campaign. This is of great interest because, for the first time, HIWRAP provided 3-D wind observations in the inner core of a major hurricane, which could improve the forecasting of hurricanes. She plans to participate in both the IPHEX and HS3 field experiments, providing support with data analysis and archiving. CODE 613: CLIMATE AND RADIATION LABORATORY Dr. Nayeong Cho (sponsor: L. Oreopoulos) uses the concept of “cloud regimes” as a basis for performing comparisons and compositing analyses on a suite of spatiotemporally matching observational data sets in order to enhance our understanding of cloud structure and cloud interaction with their environment. She examined CloudSat-derived measurements of precipitation within gridcells containing particular MODIS-Aqua-Terra cloud regimes. There is quantitative consistency with regard to the relative hydrological importance of the various regimes, which is helpful when assessing the cloud conditions under which low and high confidence precipitation retrievals can be achieved. To further 28 | GESTAR Annual Report 2013 - 2014 An algorithm was developed using GPS refractivities. Over sea ice, the minimum value in the refractivity gradient (dN/dZmin) varies seasonally. This quantity was found to be strongly correlated to the strength of the surface-based (or elevated) inversion. Whenever there is a strong increase in the lapse rate (such as the occurrence of a neutral layer or temperature inversion), the refractivity gradient became proportionally negative. Similarly, over open water, a seasonal evolution is observed in the level of the minimum refractivity gradient. This level was found to be positively correlated with the top of the atmospheric mixed layer or boundary layer. That the level of dN/dZmin appears higher during October compared to September suggests that the atmospheric mixed layer is more evolved. This feature was explored in detail using radiosonde observations. Based on her research results, Dr. Ganeshan is preparing a manuscript for publication. Contemporary scientific literature is currently focused on processes during September when the annual sea-ice minimum occurs. This new finding suggests that more observations and studies are required for evaluating the implications of sea-ice melt during the month of October. She will continue to work toward developing the numerical algorithm to retrieve inversion strength and boundary layer height from GPS-RO observations. Other properties that may be derived from GPS data (e.g., the occurrence of moisture inversions) will also be explored. She also will investigate the sensitivity to surface-forcing (sea ice vs. open water) as well as seasonal and inter-annual variability in the GPS-derived ABL properties will be investigated. Comparisons will be performed against MERRA reanalyses and AIRS satellite retrievals. For this task, Dr. Santiago Gassó (sponsor: O. Torres) aims to derive the spectral slope of aerosol absorption characteristics of different aerosols using a combination of space-based and ground-based remote sensing. Over the past year, extensive comparisons of OMI-MODIS retrievals of single scattering albedo and aerosol height resulted in no major improvement with respect to the products already available from other methods. Even if the researchers accounted for the multiple reasons this occurred, no significant improvement would be achieved. The main reasons for finding the desired result was that the additional MODIS information was not enough to account for the cloud contamination bias in the OMI aerosol retrieval. They discovered that the OMI algorithm would make an aerosol retrieval in the contaminated pixel, and the resulting AOD-versus-altitude was representative of contaminated radiances, unusable with the collocated MODIS Aerosol Optical Depths (AOD). An alternative solution was considered, but was determined impossible with the tools available and deemed beyond the proposed objectives. Also, an extensive analysis over Aeronet sites demonstrated that using a MODIS-corrected AOD in the SSA retrieval of the SSA did not result in a better comparison with Aeronet SSA. Dr. Gassó also evaluated collocated OMI AODs over coastal and island AERONET sites. While the overall comparison was statistically similar to a previous study over land sites, a detailed analysis was carried out in order to determine the origin of the discrepancies in the comparison, i.e, why occasionally OMI derived an AOD much higher or much lower than the corresponding Aeronet. It was found that for the former, cloud contamination is the dominant effect; that is, the additional radiance in the pixel results in an artificially high AOD. For the cases where OMI AOD were much lower than AERONET, it was found that the aerosol models used in the retrievals did not have imaginary indexes of refraction high enough to reproduce the observed radiance, resulting in a low OMI AOD. This effect will be corrected in future versions of the retrieval code. A detailed comparison of overlapping MODIS and OMI pixels was carried out in order to assess the amount of cloud contamination in the OMI pixel. Future work will involve a study over AERONET sites and derive the contribution of organics and black carbon aerosols by constraining the simulation using observed lidar and AERONET aerosol information. Dr. Santiago Gassó (sponsor: O. Torres) works on a second task, obtaining a continuous record of AOD over land using past and present satellite observations in the UV through a multi-satellite approach. He has started to analyze data from the Cloud and Aerosol Instrument (CAI) onboard the GOSAT. Additionally, he created computer scripts for reading and displaying CAI data and compared with similar parameters from the OMI satellite, created a code to compute reflectivities from CAI data, and compared simulated radiances with those from OMI over collocated and simulated scenes. He will be assessing the calibration of CAI and how it impacts the Lambertian Equivalent Reflectance derivation. For multiple selected case studies, he will assess the degree to contamination in a typical OMI as determined by CAI. Much of the work of Dr. Charles Gatebe (sponsor: C. Ichoku) involves the development of instruments and technologies for new measurements in support of future missions, including those defined in the U.S. National Research Council Decadal Survey. Over the past year, he has been involved in at least three proposals to this effect. Dr. Gatebe submitted a proposal (SnowMass) for an integrated multi-sensor airborne, field, and modeling campaign to improve estimation of Snow Water Equivalent. The SnowMass team brings together seasoned Science experts in snow remote sensing using multiple types of sensors, interdisciplinary scientific data analysis, data assimilation, land surface modeling, data management systems, and airborne sensor operations. The ground truth collection team includes the most experienced team of in situ snow measurement experts ever assembled. Two other NASA ROSES proposals were submitted as well, one focusing on the development of new angular distribution models for satellite assessment of direct radiative forcing by wildfire aerosols derived using multi-angular/spectral airborne measurements and 3D radiative transfer modeling, the other focuses on the development of a low-noise high-gain charge-integrating pre- amplifier with reset and sample/hold for photodiodes. The new detector systems technology will be used in the BACAR (BRDF, Albedo, Cloud and Aerosol Radiometer) instrument and will open up several exciting and unique avenues of groundbreaking research relevant to NASA earth science missions. Dr. Gatebe works with Bryan James (GSFC, Code 552), who is supporting the BACAR project. Bryan is on a one-year assignment under the Science and Engineering Collaboration Program (SECP). Other work will involve studying the effects of biomass burning activities on surface albedo over the sub-Saharan Africa region using the MODIS albedo product. This is part of the NASA IDS study: Amplified study of the interactions and feedbacks between biomass burning and water cycle dynamics across the northern sub-Saharan African region (PI: Charles Ichoku). Dr. Gatebe will be participating in the DISCOVER-AQ Colorado deployment this summer. The overarching objective of the DISCOVER-AQ investigation is to improve the interpretation of satellite observations to diagnose near-surface conditions relating to air quality. During the month-long campaign, he will acquire airborne BRDF data with the multi-wavelength NASA’s Cloud Absorption Radiometer (CAR). Dr. Jie Gong (sponsor: D. Wu) works on developing retrieval techniques and delivering retrieval products (i.e., cloud ice water path, cloud top height, ice particle size) of AMSUB/MHS onboard NOAA satellite series. Additionally, correlative data sets are compared to evaluate retrieval performances and uncertainties. Research over the past year has involved deriving ice cloud properties from GESTAR Annual Report 2013 - 2014 | 29 microwave channels and multi-platform synergy works. Dr. Gong has also collaborated and will continue to collaborate with other scientists on testing and improving model performances in ice cloud microphysics using the newly generated product. Research has resulted in presentations at three international conferences and two at NASA Goddard, as well as a related paper that is now in press. Dr. Pawan Gupta (sponsor: C. Ichoku) conducts research on aerosol properties and satellite retrieval of aerosol properties over urban areas, including characterizing uncertainties within current aerosol retrieval algorithms, and proposing improved algorithms for urban aerosol retrieval. Dr. Gupta has developed new surface characterization over urban areas within the continental United States. The new surface parameterization has been implemented in the research version of the algorithm for both 10k and 3km aerosol products. The new algorithm has been run over all of the existing AERONET stations within the U.S. from 2003 to 2012, and he has validated the new refined urban aerosol product extensively over the U.S. The results from this validation study show a high degree of improvement in bias over urban areas from the existing product. Results are being summarized in a journal article. Additionally, his research has resulted in both oral and poster presentations in the past year, and led to his involvement with a proposal on the MODIS Data Product. As part of his task objective, to develop a set of advanced diagnostic frames for “cloud simulation validation” of GEOS-5 AGCM, Dr. Daeho Jin (sponsor: L. Oreopoulos) implements the CFMIP Observation Simulator Package (COSP), categorizes the COSP output to “Cloud Regimes”, and compares the results with an observational counterpart. Dr. Jin set up an advanced diagnostics of the model’s cloud simulating performance, and performed a 10-year simulation of the most recent version of GEOS-5 AGCM (Ganymed 4.0) with four satellite simulators (ISCCP, MODIS, CALIPSO, CloudSat; the COSP). In addition, he also received two model outputs with different microphysics: the McRAS-AC cloud scheme, implemented by colleague Dr. Dong Min Lee, and the BarahonaMorrison-Gettelman (BMG) scheme, implemented by Dr. Donifan Barahora (GMAO). With all three model outputs, he evaluated and compared the cloud simulation performances. The ISCCP and MODIS simulators among COSP provide 42 bins of joint histogram of cloud top pressure (CTP) and optical thickness (tau), which are the same as corresponding satellite observations. Dr. Jin could directly compare the model results with observational counterpart in terms of cloud characteristics. Because the cloud data is difficult to handle due to its 3-dimensional characteristics (horizontal location/time/42bins), he set up a series of systematic diagnostics of each model’s cloud simulating performance. Another approach to analyzing clouds is to examine “cloud regimes (or weather states)”, which are obtained from clustering analyses. Previously, colleagues Drs. Dong Min Lee and Nayeong 30 | GESTAR Annual Report 2013 - 2014 Cho achieved cloud regimes from MODIS satellite data. Dr. Jin followed their study, and applied the same method to the model outputs. In this process, he found a severe programming error in performing K-means clustering analysis, which had led to incorrect results of cloud regimes. After addressing these problems, the algorithm was improved to reduce the computational time. He also suggested modifications of traditional K-means clustering analysis. He found that most individual joint histogram data has several zeroes among 42 bins, which (partly) contributes to the overabundance of shapeless and semi-clear regime. In order to reduce the effect of zero bins, Dr. Jin suggested two variants of K-means clustering: a “reduced bins” method which merges 42 bins into 9 sub-groups, and performs K-means analysis with 9 bins instead of 42 bins, and a “reduced distance” method that excludes zero bins when calculating distance from each centroids. Both new algorithms produce significantly different clustering results from the results of original algorithm, and the interpretation of these results is in process. Of note: Dr. Jin applied the principle component analysis (PCA) to cloud data, which is the first attempt in this field. Dr. Jin submitted a report on PCA to his sponsor, and further application of PCA is under consideration. and accounts for the effect of polarization of light. Several updates for his code have been released after debugging. The package is available for the community from the NASA ftp website: ftp://climate1.gsfc.nasa.gov/skorkin/IPOL/. In the coming months, he will be releasing the second part of the manual for his code that simulates vector radiative transfer in planetary atmospheres. This part will contain all computational relations used in the code and will be useful for those users who are willing to understand theoretical background of the code in details (to compare with other codes) or to modify the code on their own. To continue his validation of model output, he will be refining the advanced diagnostics to evaluate the cloud simulating performance, and testing the modified algorithm of K-means clustering analysis as well as the principle component analysis. Dr. Jin will tune the AGCM to improve the cloud simulating performance by cooperating with colleague (Dr. Dong Min Lee). They will examine and test the algorithm of sub-column generator in satellite simulator and GEOS-5 model, and help to implement the aerosol treatment modal method to promote interaction with the McRASAC micro-scheme. Dr. Benjamin Marchant (sponsor: S. Platnick) successfully delivered this year the MODIS Collection 6 (C6) Cloud phase discrimination algorithm. For C6, the NIR-SWIR cloud thermodynamic phase algorithm has been completely rewritten in an effort to improve the phase discrimination skill for a variety of cloudy scenes (e.g., thin/thick clouds, over ocean/land/desert/snow/ ice surfaces, etc.). To evaluate the performance of the C6 cloud thermodynamic phase algorithm, Dr. Marchant has conducted extensive granule-level and global comparisons against the heritage C5 algorithm, collocated CALIOP v3 (1km and 5km) Cloud Layer product, and POLDER. A great improvement is seen for C6 compared to C5. Going forward, he will work on adapting the MODIS C6 Cloud phase discrimination algorithm to VIIRS or eMAS sensors as well as investigate the potential of machine learning techniques to continue improving cloud optical products. Dr. Sergey Korkin (sponsor: A. Lyapustin) develops the numerical radiative transfer algorithm for the retrieval of aerosol properties with consideration of polarization effects, including bottom surface reflection, and vertical inhomogeneity of the atmosphere. This past year, Dr. Korkin’s work on the retrieval algorithm experienced delays caused by technical problems related to compilation of the hdf5 libraries with Fortran support under MS Visual Studio 2008. The AirMSPI data is released in the hdf5 format. It is more convenient to read the data from the database directly to the retrieval code. Even with support from the HDF Group, the developer of hdf5 libraries, the process took several months. In the end, two bugs in the Windows version of the sources were found, and the libraries are now successfully compiled. Dr. Korkin will further develop his retrieval algorithm based on the Levenberg-Marqurdt technique. This algorithm is intended to retrieve optical properties of aerosol using multi-angle spectropolarimetric data from the AirMSPI sensor as well as his own radiative transfer code. Dr. Korkin finalized the first part of the manual for his code that numerically simulates light scattering in planetary atmospheres Dr. Korkin’s code proved its high reliability, and with his code for numerical simulation of radiative transfer in atmosphere, he participated in the intercomparison of codes. Results to-date of this intercomparison will be reported during two upcoming conferences. Dr. Korkin’s work resulted in his co-authoring one national and one international presentation, as well as one peer-reviewed publication. Additionally, using his code, he generated look-up tables for the polarization correction of MODIS data. When polarization effects were taken into account, a significant improvement in data visualization was observed. Dr. Kerry Meyer (sponsor: S. Platnick) works on improving current MODIS cloud retrieval (MOD06) capabilities for thin cirrus optical property retrievals using the 1.38 micron channel. In addition, the effects on MOD06 of absorbing aerosols overlying marine boundary layer clouds are investigated. This past year, Dr. Meyer developed a new retrieval using multiple MODIS spectral channels to simultaneously infer above-cloud absorbing aerosol (e.g., smoke) optical thickness and the optical and microphysical properties of underlying liquid phase marine boundary layer clouds. Above-cloud absorbing aerosols introduce biases into standard imager-based retrievals of cloud properties, such as those from the operational MODIS cloud product (MOD06). The solution logic of the new retrieval has recently been updated to use a computationally efficient optimal estimation-based approach to search a large pre-computed look-up table for pixel-level retrieval solutions. This approach also provides pixel-level estimates of retrieval un- certainty. A regional aggregation algorithm has been developed to produce daily and monthly statistics on a 1-degree grid. Preliminary case study comparisons with other data sets (e.g., CALIOP) show good consistency. Dr. Meyer provided science and data analysis support for the MODIS Collection 6 (C6) reprocessing effort, specifically the operational cloud product (MOD06). He participated in finalizing the cloud thermodynamic phase determination algorithm, identified and fixed various coding bugs, provided a computational performance enhancement that significantly decreased processing time, assisted in providing corrected ice cloud property look-up tables, and analyzed science test results. He represented the MOD06 cloud retrieval group at the international Cloud Retrieval Evaluation Workshop (CREW-4), and provided writing and editorial support for the upcoming MOD06 User’s Guide. Future work will include a new cloud property retrieval User’s Guide and a manuscript detailing C6 changes and updates. Dr. Meyer conducted work on a proposal awarded in June 2013. Efforts included developing a method for retrieving above-cloud absorbing aerosols and providing unbiased retrievals of underlying cloud optical and microphysical properties using MODIS reflectance measurements. Additionally, the radiative effects (i.e., radiative forcing) of the aerosols will be estimated. Excellent progress has been made, specifically toward retrieval development. A multispectral retrieval technique is now developed based on an optimal estimation approach to efficiently search a large pre-computed look-up table for the retrieval solution, while simultaneously providing estimates of retrieval uncertainty. Algorithms also have been developed to aggregate daily and monthly retrieval statistics on a 1-degree grid. Comparisons with MODIS operational cloud retrievals show excellent agreement, and preliminary aerosol comparisons using CALIOP show good consistency. Note: this proposal fully funds a Ph.D. level graduate student working under Dr. Zhibo Zhang (Co-I) at UMBC. During the recent SEAC4RS field campaign, Dr. Meyer provided support for the Enhanced MODIS Airborne Simulator (eMAS) operational cloud retrieval and clear-sky restoral algorithm, as well as post-campaign calibration and data inter-comparison efforts. He also developed a new bi-spectral thin cirrus cloud optical and microphysical property (optical thickness and particle size) retrieval using eMAS reflectance measurements within the 1.88 micron water vapor absorption band. The technique is loosely based on the physics of previous efforts involving the MODIS 1.38 micron channel, though it uses the well-known Nakajima and King [1990] two-wavelength look-up table approach. The retrieval was recently modified to use an optimal estimation approach for solution convergence and uncertainty estimates. Initial SEAC4RS case-study comparisons with retrievals from the operational MAS06 product, the Cloud Physics Lidar (CPL), an 11 micron IR retrieval, a multispectral IR optimal estimation technique, and polarimeter-based retrievals show good consistency. A manuscript is in progress GESTAR Annual Report 2013 - 2014 | 31 that details a new thin cirrus optical and microphysical property retrieval developed during the SEAC4RS field campaign using eMAS reflectance measurements within the 1.88 micron water vapor absorption band. The research of Dr. Falguni Patadia (sponsor: R. Levy) involves quantifying the uncertainty and error in the MODIS Dark Target aerosol optical depth retrievals, as well as performing atmospheric corrections and radiative transfer calculations to generate Look-Up-Tables for aerosol retrievals from MODIS, VIIRS, AMS, and EMAS instruments. She is also involved in evaluating clouds masks from the MODIS Dark Target and MODIS MAIAC aerosol retrieval algorithms. Dr. Patadia used the Line-By-Line Radiative Transfer code to derive atmospheric gas correction relationships for those channels of the above instruments that are used in aerosol retrievals. This atmospheric gas correction is being used for performing MODIS aerosol retrievals and for MODIS-like retrievals from VIIRS, AMS and EMAS instruments. For these instruments, Dr. Patadia performed radiative transfer calculations for calculating the Top-Of-Atmosphere (TOA) reflectance for various combinations of aerosol properties, surface conditions and sun-satellite viewing geometry. These calculations are stored as Look-Up-Tables for each of the above sensors and are being used in performing aerosol retrievals from observations made by MODIS, VIIRS AMS, and EMAS instruments. Dr. Patadia has been researching the uncertainty and errors associated with AOD retrieved by NASA’s flagship MODIS Dark Target algorithm. She is identifying the various sources of uncertainty and is developing methods to quantify the uncertainty from each of these sources at per-pixel retrieval level. Some of the sources of uncertainty include calibration uncertainty in MODIS L1B reflectance, errors in ancillary data used for atmospheric corrections, errors in surface reflectance, and uncertainty associated with aerosol properties assumed in the retrievals. The per-retrieval uncertainty numbers are especially useful for the data-assimilation community. Methods have been tested and uncertainty has been quantified for several test cases, including over the African continent, AERONET sites from the 2011 DRAGON campaign in the Baltimore-Washington area, the Indian Ocean region, and global oceans for four months of 2010. Her research on the MODIS AOD uncertainty will continue, and she is preparing a manuscript related to her work on Atmospheric Gas Correction for AOD retrieval from MODIS and other sensors. Additionally, the MODIS Dark Target and MAIAC aerosol algorithms retrieve aerosol optical thickness (AOT) only in cloud-free conditions. Before the AOT retrievals are performed, the algorithms undergo an arduous task of separating the cloudy and clear sky data pixels. Dr. Patadia is evaluating the success, failure and corroboration of cloud and clear sky identification from the two algorithms. Dr. Andrew Sayer (sponsor: N. C. Hsu) conducts research to improve the understanding of the effects of atmospheric aerosols 32 | GESTAR Annual Report 2013 - 2014 on the Earth System. A large part of this involved the MODIS sensors aboard the Terra and Aqua satellites that provide some of NASA’s flagship Earth Science data sets, including the ‘Deep Blue’ aerosol project, led by Dr. Sayer’s NASA sponsor. Over the past year, the next major reprocessing (‘Collection 6’, C6) of the MODIS product suite was finalized, and these data are now being released to the public. The C6 effort was a major focus over the past year; in recognition of these efforts, Dr. Sayer and other members of the MODIS team (which include Dr. Benjamin Marchant, Dr. Kerry Meyer, and Dr. Falguni Patadia) were presented with an award for Outstanding Technical Support/Achievement by NASA. The C6 work has also resulted in three peer-reviewed journal papers this past year as well as two proposals to further extend the capabilities of the Deep Blue algorithm. Dr. Sayer is also part of a proposal involving the application of the Deep Blue algorithm to NPP-VIIRS. In late 2011, the Suomi-NPP satellite was launched as the first in a new series of U.S. operational weather/ climate satellites. The VIIRS instrument onboard Suomi-NPP is similar to previous instruments such as MODIS and SeaWiFS. As part of Dr. N. C. Hsu’s group, Dr. Sayer has taken the lead on transitioning algorithms developed to monitor aerosol particles over oceans to VIIRS, and assisted efforts on over-land algorithms. This has led to algorithms which have already been demonstrated to generate aerosol data of similar quality to prior sensors. By possibly applying these algorithms to the VIIRS sensor, they could extend the time series of high-quality aerosol data for air quality, climate, and other applications. This work with Dr. Hsu resulted in two international presentations. Dr. Sayer also studies aerosol/cloud interactions in South-Eastern Asia (SEA), an area that provides a ‘natural laboratory’ for examining the interactions between aerosols and clouds, due to widespread agricultural burning practices in boreal springtime and the transport of the resultant smoke above persistent low-lying stratocumulus clouds. These interactions are a topic of substantial interest, as they remain among the more uncertain contributions to the radiative forcing of the Earth system. His work in this area has led to two studies and a proposal, which, if funded, will combine satellite data with ground-based measurements of aerosol and cloud properties made in this region as part of the 7-SEAS field campaign. SEA has been under-studied compared to other biomass-burning source regions, so this would represent a novel and useful contribution to understanding these interactions. Within this task, Dr. Yuekui Yang (sponsor: A. Marshak) uses a synergistic method to study blowing snow properties over the polar ice sheets, and applies his expertise in radiative transfer in understanding the impact of clouds and blowing snow on the surface altimetry from space-borne lidars. He also investigates polar cloud properties and cloud height retrieval algorithms. This past year, Dr. Yang analyzed blowing snow properties over Antarctica. Blowing snow (BLSN) is a common phenomenon over the polar regions; over large areas of East Antarctica, it occurs over 60% of the time during the winter months. Dr. Yang’s analysis showed that, during the year 2009, the monthly mean blowing snow optical depths were highest in the winter months (April to September). The monthly mean blowing snow geometrical thickness is stable over the year. Dr. Yang also conducted a study on the effect of blowing snow on outgoing longwave radiation (OLR) over Antarctica by using observations from NASA satellites (CALIPSO and CERES). He found significant cloud-free OLR differences between the clear and BLSN conditions, with the sign and magnitude depending on the season and time of day. During nighttime, OLR with BLSN is usually larger than those without BLSN; the average difference in OLRs between these two conditions over the East Antarctica ice sheet is Figure: Monthly mean OLR flux differences between cases with and without blowing about -5 W/m2 for the winter months snow for (a) January (polar day) for (b) August (polar night). While about 66% of the OLR (nighttime) of 2009. During daytime, differences are positive in January, about 91% are negative in August. These results show however, OLR with BLSN is usually that blowing snow generally has a cooling effect to the surface-atmosphere system during close to or smaller than OLR without the polar night. During the polar day, however, the effect can be warming. (Credit: Y. Yang) BLSN. These results are consistent with theoretical calculations and can be explained with the existence and strength of the surface-based retrieval. inversions (SBIs). For example, because of strong SBIs, during Dr. Yan Zhang (sponsor: M. Chin) conducts research involving the the polar night, the BLSN layer is warmer than the surface and assessment of aerosol diurnal variations, aerosol intercontinental more radiation is emitted to space compared to clear sky conditransport and aerosol impacts on climate and air quality based tions; hence, BLSN generally has a cooling effect to the surfacelargely on A-Train and other satellite observations in combination atmosphere system. During the polar day, however, SBIs can be with ground-based measurements (AERONET and CARSNET) and destroyed and the effect of BLSN will be the opposite. Based on global models (GOCART and a suite of AeroCom models). Subsethese studies, Dr. Yang published a paper in Geophysical Requently she is involved in analyzing diurnal variations, comparing search Letters. model simulations with CARSNET and AERONET AODs in China, and integrating multiple satellite measurements to characterize Dr. Guoyong Wen (sponsor: R. Cahalan) studies radiative transfer aerosol type and intercontinental transport. For the project on of solar radiation in the atmosphere. He focuses on Sun-Climate aerosol inter-continental transport, Dr. Zhang has been analyzing relations and understanding climate responses to solar variability multi-year collocated satellite data to determine the possible relaon decadal, centennial and longer time scales using observation from NASA’s SORCE satellite, and also studies the 3D cloud radia- tionship of different aerosol properties or aerosol index. The goal is to separate different aerosol types which will help to accurately tive effects on aerosol retrieval in the vicinity of clouds for MODIS estimate each species of aerosols inter-continental transport. aerosol retrievals. His research over the past year has resulted Some unclear factors still exist, making it difficult to get a simple in three presentations and two peer-reviewed publications. Dr. but accurate relationship between those aerosol properties; Wen will continue working with scientists at NASA/GISS to study therefore, Dr. Zhang analyzed individual cases that were selected climate response to spectral solar forcing using GISS GCM. He according to SAMMUM2 campaign from ground-based observawill further investigate issues on correcting 3D cloud radiative eftions, air flight observations, and satellite measurements. Results fects, and improve technique for correcting the effects on aerosol indicated that multi-sensor satellite measurements have a good GESTAR Annual Report 2013 - 2014 | 33 agreement with conclusions from the SAMMUM2 campaign. A related manuscript is in progress. CODE 614: ATMOSPHERIC CHEMISTRY AND DYNAMICS LABORATORY Dr. Valentina Aquila (sponsor: P. Colarco) develops stratospheric aerosol and chemistry modules in the NASA GEOS CCM modeling system, and devises, conducts and analyzes experiments made with the NASA GEOS CCM system to investigate the various roles of stratospheric aerosols and chemistry in Earth’s climate system. In 2013-2014, Dr. Aquila worked on stratospheric aerosol from geoengineering and natural sources. She explained the effects that geoengineering via stratospheric sulfate would have on stratospheric ozone and the quasi-biennial oscillation. Additionally, she improved the GEOSCCM chemistry climate model by introducing the ability of simulating the OCS chemistry leading to the formation of background stratospheric aerosol. In the coming year, she plans to continue work on stratospheric aerosol, by analyzing the sources of the stratospheric aerosol layer. In this project, Dr. Aquila will merge model results to satellite data, including Aura and the recently launched NPP satellites. For another project, Dr. Aquila participated in the NASA SEAC4RS airborne field campaign based in Houston, TX as part of the chemical forecasting team. She analyzed the output of several climate models in order to help the science team finalizing the flight paths. From her research efforts, she has authored and co-authored three publications, and been part of one paper to be submitted. She also submitted several proposals, of which one has been awarded to date. Brewer and the Washington State University MFDOAS instrument). Dr. Cede has completed the calibrations and submitted the data for the15 Pandoras distributed during the second DISCOVER-AQ field campaign (Jan-Feb 2013) in California and the third DISCOVER-AQ field campaign during Jul-Aug 2013 in Texas. For the instrument calibration, laboratory measurements before and after the campaign at GSFC as well as field data at the campaign sites were used. This past year, Dr. Cede investigated new ideas. First, they tested the possibility of doing absolute calibration of Pandoras in the laboratory at GSFC. As a result, this type of lab-measurements in the standard Pandora laboratory calibration routine was included. Second, a new approach for the Pandora stray light characterization, which is based on merging data with bandpass filters and lasers, was tested. This new approach failed, since the dark bias in Pandora read-out electronics is too large. Therefore, another route was attempted, for which a stray light simulation software was developed as a first step. Work will continue regarding improvements to the Pandora stray light correction, dark correction, and total ozone algorithm (including the effective ozone temperature). Other highlights from the last year included an invited talk at the School of Marine and Atmospheric Sciences, Stony Brook University, in New York about the effect of the eruption on Mount Pinatubo on ozone concentrations. About 40 people attended, including faculty professors and graduate students. Also, Dr. Aquila was awarded a teaching postdoctoral fellowship at Johns Hopkins University; during the upcoming fall semester, she will be teaching “Freshmen Seminar: An Introduction to Climate Change”. In summer 2013, Dr. Aquila was recognized with a NASA ESD-Atmosphere Contractor Award for outstanding performance in science. Dr. Edward Celarier (sponsor: N. Krotkov) works primarily with the OMI NO2 team. He develops new code for operational production of NO2 data from OMI, updates and modifies the operational algorithm code to implement algorithm enhancements developed by other members of the OMI NO2 team, reviews and examines test data from the operational OMI NO2 algorithm, and writes documentation of the algorithm and software. He has been working on the development of the NO2 SCD code. Starting with “research code” from Dr. S. Marchenko, written in IDL, Dr. Celarier created an operational code in Fortran 95, ultimately for operational forward processing. This has required a thorough review of the algorithm, identification and implementation of appropriate numerical procedures, and identification of potential use cases that would result in operational failure. In addition, he structured the code for maintainability and readability, and much more thoroughly documented it. In his restructuring of the code, it should now be easily adaptable to the retrieval of trace gases other than NO2, mostly through the adjustment values contained in the operational parameters file (OPF) and program control file (PCF). The first (alpha) version of the algorithm is nearly complete. For Aura Validation and DISCOVER-AQ, Dr. Alexander Cede (sponsor: K. Pickering) calibrates and analyzes the PANDORA and CLEO spectrometer systems to measure trace gases in the atmosphere (e.g., O3, SO2, HCHO, BrO, NO2, H2O) that have absorption spectra in the 300 to 525 nm spectral range. He writes and deploys the necessary automated software needed for Pandora operation and data analysis. The resulting measured trace gas amounts are then compared with AURA/OMI measurements to determine the validity of the OMI spacecraft retrievals. As part of this effort, various ground campaigns will be conducted that include comparisons with reference ground-based instruments (GSFC double For an Environment Canada (EC) field campaign in Northern Alberta, Dr. Celarier developed a field-of-view (FoV) prediction program, which differed in the scale of the region of interest from previous field campaigns. Where other field campaigns had focused on large, multi-state regions of CONUS, EC’s region of interest is an area of about 100 km on a side, in the area of Fort McMurray, Alberta, where tar sands oil extraction operations are ongoing. To accommodate EC’s request, some significant modifications to the existing code were required, including a finer-scale (10-second) placement of isochrons, and the addition of specified geographic features to the map, plus more flexible means to specify the anno- 34 | GESTAR Annual Report 2013 - 2014 tations placed on the map. Dr. Celarier produced several prediction maps that were used by Environment Canada in support of their field campaign flight planning. In collaboration with team members, Dr. Celarier produced the award-winning poster “The Ozone Hole: Over 30 years of NASA observations”. He assisted with visual display elements, and wrote and edited much of the explanatory text. The poster is being distributed by NASA, and the material is also available in PDF files (poster and booklet) from http://aura.gsfc.nasa.gov/ozoneholeposter. This poster won a 2013 Communicator Award for Excellence in Print and Design by the International Academy of the Visual Arts. He also co-authored a publication with Dr. E. Bucsela, now available in the online journal AMT. Dr. Melanie Follette-Cook (sponsor: K. Pickering) performs regional air quality modeling in support of the analysis of DISCOVER-AQ data, and participates in DISCOVER-AQ field deployments as part of the forecasting/flight planning team. She analyzes data from the ACAM instrument, and contributes to spatial and temporal variability analyses in support of planning activities for NASA’s GEO-CAPE satellite. In support of planning activities for NASA’s GEO-CAPE and TEMPO satellites, Dr. Follette-Cook calculated spatial and temporal structure functions and statistics by using output from a month-long WRF/Chem simulation she previously performed in order to quantify trace gas and aerosol variability. The trace gases O3, NO2, CO, SO2, and HCHO were analyzed over the Eastern U.S. for the month of July 2011, corresponding with the DISCOVER-AQ campaign. Overall, her analysis results indicate that the precision requirements developed for the GEO-CAPE and TEMPO science traceability matrices are well-equipped to answer the air-quality relevant science questions they are tasked to address. Results were summarized in a submitted manuscript. She began working on a GEO-CAPE task to demonstrate the collaborative work that will be possible to achieve with the combination of the GOES-R Geostationary Lightning Mapper and GEO-CAPE. She modified a version of WRF/Chem to incorporate interactive ozone within the radiation scheme. Using this version, simulations were completed with and without lightning in order to compute upper tropospheric enhancements of O3 and NOx due to lightning. She found an error in the way the simulation was conducted; in searching for a solution, a faster and more streamlined method to run WRF/Chem for long periods of time was developed. Analysis results are currently being written up in manuscript form. Additionally, several profiles were provided to the GEO-CAPE sensitivity team for calculation of several averaging kernels covering different wavelength regions. Based on preliminary results, upper tropospheric ozone enhancements from lightning should be retrievable by GEO-CAPE, regardless of the wavelength range used. Dr. Follette-Cook will participate in these future activities for DISCOVER-AQ: complete a WRF/Chem simulation for the Sep- tember 2013 DISCOVER-AQ deployment in Houston, TX; compare WRF/Chem output to DISCOVER-AQ measurements; participate in the fourth DISCOVER-AQ deployment in July 2014 in Boulder, CO. For GEO-CAPE, she will submit a manuscript related to research from the past year; complete the lightning NOx analysis; assess the improvement in the ability of GEO-CAPE to detect the NO2 from lightning over that of OMI; and, evaluate the ability of GEOCAPE to detect the enhanced O3 due to lightning NOx by applying averaging kernels from the GEO-CAPE retrieval sensitivity work to the WRF/Chem output. Dr. Pawan Gupta (sponsor: J. Joiner) supports the development of remote sensing trainings for the NASA Applied Sciences Program in the area of air quality applications, the goal being to increase utilization of NASA remote sensing data sets among applied professionals. Dr. Gupta creates and distributes educational and training materials, and provides training workshops and seminars. Specifically, he develops training materials on using data products relevant to air quality applications from the OMI, MISR and MODIS instruments. In summer 2013, he conducted a five-week-long training for the Applied Remote SEnsing Training (ARSET) Program, providing online training on fundamentals of remote sensing data usage for air quality applications. About 100 participants, including both national and international air quality data users, attended this training session conducted by Dr. Gupta and the ARSET team. The training included an overview of remote sensing training program, basics of satellite remote sensing, introduction to NASA air quality products and online tools to access the NASA data sets, and was an introduction to an upcoming in-person advance training held in Santa Clara, CA, primarily for the Bay Area Air Quality Management District (BAAQMD) in Sept 2013. From Sept 10-12, 2013, Dr. Gupta and other members of the ARSET program conducted three in-person training sessions on the use of NASA satellite data for air quality applications; these sessions included 16 attendees from agencies in California. Held at University California, Santa Clara (UCSC), the event was co-sponsored by the NASA Applied Sciences Program and the BAAQMD. Attendees learned how to apply NASA satellite data, imagery and web tools to air quality management problems in their region. The focus of the training was NASA and NOAA’s smoke/fire and aerosols products and their applications for air quality monitoring. In fall 2013, the ARSET Program conducted a five-week-long online training on fundamentals of remote sensing data usage for air quality applications, which was provided in preparation of a training session in Nov 2013. There were about 60 participants including both national and international air quality data users. Dr. Gupta and the ARSET team conducted the training, which included an overview of remote sensing training program, basics of satellite remote sensing, introduction to NASA air quality products and online tools to access the NASA data sets. In Nov 2013, Dr. Gupta attended a VIIRS aerosol science and operational GESTAR Annual Report 2013 - 2014 | 35 sible observing scenario of future NASA air quality mission TEMPO and GEOCAPE using MODIS data sets. He specifically worked on evaluating a new product with ground measurements. (Image credit: H. Jethva) users workshop in College Park, MD from Nov. 21-22, where he presented a talk on the NASA ARSET program and the application of VIIRS aerosols data for air quality applications. Another online training session was held over six weeks, from Jan 8 – Feb 21, 2014, on the fundamentals of remote sensing data usage for air quality applications. This training was provided inpreparation of an in-person advance training to be held in Austin, TX. The training, conducted by Dr. Gupta and the ARSET team, included an overview of remote sensing training program, basics of satellite remote sensing, introduction to NASA air quality products and online tools to access the NASA data sets. More recently, Dr. Gupta led a special online training focused on application of satellite data for Indian sub-continent. This training was held from March 19 to April 23, 2014, and consisted of about 156 participants from more than 10 countries in the region. For this second task, Dr. Pawan Gupta (sponsor: O. Torres) studies radiative transfer calculations in UV, visible and near IR, develops global climatological data sets on surface reflective properties, and prepares publications and presentations. For his evaluation of TEMPO and GEOCAPE-like aerosol product, Dr. Gupta and other team members worked toward simulating a pos36 | GESTAR Annual Report 2013 - 2014 Dr. Gupta is working toward creating new global surface reflectivity data sets to be used in operational OMI aerosol retrieval. The existing data sets are based on TOMS records, whereas new data sets have been created using high-resolution OMI observations. For this ongoing project, they have processed several versions of data sets. New developments include the following: a presentation on the new data sets made at the OMI Science Team meeting, with the data sets undergoing revision based on the feedback from the science team; a 9-year-long MODIS climatology implemented in place of 1-year-old climatology; ongoing testing with longer time series over global AERONET locations; and an inter-comparison with MISR L2 data sets in progress. Going forward, the team will extend the analysis to 20 other wavelengths, which will be used to retrieve other trace gases product from OMI. Dr. Hiren Jethva (sponsor: O. Torres) works on the TEMPO-GEOCAPE analysis to simulate the possible aerosol retrieval scenarios from the future geo-stationary missions, namely, TEMPO and GEO-CAPE. While TEMPO already has been approved and funded, GEO-CAPE is still in the proposal and design phase. Both missions are aimed at monitoring the pollution over the Northern America region at high spatial and temporal resolutions. His work began by carrying out the aerosol optical thickness (AOT) retrieval over the continental land region of North America for four selected case study days using the MODIS reflectance measurements. While the spatial resolution of TEMPO is 2 x 4.5 km2, GEO-CAPE should have an even higher resolution of 1 x 1 km2, both at nadir view. The goal is to evaluate the aerosol retrieval at these two different resolutions, and in order to do so, the MODIS aerosol stand-alone code was used to retrieve the AOT from the TEMPO and GEO-CAPE-like measurements set up originally as derived from the 1-km high-resolution MODIS data. A statistical comparison between the referenced GEO-CAPE simulation and three TEMPO simulations (with different cloud masks) was done to evaluate the spatial coverage and quality of retrieved AOT associated with two different spatial resolutions. This analysis was later conducted on a monthly scale to better understand the differences between them. During the last quarter of this annual cycle (Jan-Mar 2014), Dr. Jethva was tasked to validate the AOT retrieval produced from the Multi-angle Implementation of Atmospheric Correction (MAIAC) algorithm against the ground-based AERONET direct measurements. He adopted a well-accepted spatio-temporal approach to co-locate the satellite data with that of ground-based for many sites over the Mid-Atlantic and Northeastern U.S. The analysis results were presented at the GEOCAPE Aerosol Working Group meetings held at NASA GSFC. Dr. Jethva also worked on the OMAERUV Aerosol Single-scattering Albedo Assessment, expanding the OMAERUV vs. AERONET single-scattering albedo analysis to all available AERONET sites distributed globally. This comprehensive analysis includes about 450 AERONET sites that span across major biomass burning regions, desert dust environments, and urban locations. OMI retrievals were collocated with AERONET in space and time for about 250 sites where at least one matchup between ground and satellite data was obtained. The plots of OMAERUV vs. AERONET for each site and for each aerosol type were created. Agreement and disagreement between the results of two independent techniques were diagnosed in relation to the aerosol optical depth (AOD) and UV-Aerosol Index. The possible uncertainties in both inversions were also examined through literature survey and uncertainty analysis. Results obtained from this analysis were incorporated into a paper, which, along with comments and suggestions received from anonymous reviewers, was revised and resubmitted to the Journal of Geophysical Research. At present, he is working on a revision. He worked on comparing the OMAERUV and the SKYNET Aerosol Single-scattering Albedo. Dr. Jethva assessed the OMAERUV single-scattering albedo product using ground measurements of the equivalent quantity retrieved from an independent ground network of sky radiometers known as “SKYNET”. The data was acquired through an ftp site hosted by Japan’s Chiba University. Unlike AERONET which provides the sky inversion product at the shortest wavelength of 440 nm, several SKYNET sites measure and retrieve the aerosol single-scattering albedo in the near-UV region of the spectrum (340 nm, 380 nm, 400 nm). This facilitates a direct comparison of the OMAERUV SSA with ground retrievals without dealing with the wavelength conversion. Dr. Jethva compared OMAERUV with SKYNET for several sites over Japan, China, India, and Europe. He conducted an intercomparison of A-train sensors above-cloud aerosol optical depth. An inter-sensor assessment of above-cloud AOT is an important exercise to check the consistency (or inconsistency) between the independently derived above-cloud aerosol retrieval from different sensors on board A-train satellites. Dr. Jethva conducted and completed such an analysis by combining the above-cloud AOT retrieval from A-train sensors (i.e., MODIS, CALIOP, POLDER, and OMI for selected case studies). Spatial maps of the retrievals derived from the passive sensors were compared in terms of the spatial patterns and magnitude of AOT. The research retrievals derived from different sensors were also collocated along the CALIPSO lidar track for the inter-comparison. Research results were compiled in a manuscript that, after reviews and a revision, was accepted by Geophysical Research Letters and published online in January 2014. He also presented a poster summarizing the results at the 2013 AGU Fall Meeting. Furthermore, Dr. Jethva co-authored a review paper led by Kirk Knobelspiesse (NASA Ames) titled “Remote Sensing of Above Cloud Aerosols”, an in-depth review of published literature on the above-cloud aerosol characterization from space-borne sensors. After revision and modification as suggested by the editor, the paper was accepted as a chapter in Light Scattering Reviews (Springer Praxis Books, Vol. 9). Other work over the past year included his creation of global monthly mean maps and data sets of the OMI/OMAERUV products for version V142 and V147. Using this data set, he delivered seasonal and Hovmoller plots of the aerosol products which are now ready for access to the users. He also carried out the radiative transfer simulations to create the above-cloud aerosols look-up-table using the VLIDORT package. The results of RT simulations were put in to a multi-dimensional array format for its ingestion in to the global operational code currently being prepared by a team member, Changwoo Ahn (SSAI). And, under the MEaSUREs project, he prepared the cloud-free aerosol lookup-tables for its use in the long-term global retrieval from multiple sensors (i.e., N1/TOMS, EP-TOMS, and Aura/OMI). Dr. Jethva performed a stand-alone above-cloud AOD retrieval for a wildfire event that occurred in California on Aug 5-6, 2013. On August 6th, the SEAC4RS team conducted a test flight over the west coast of California to measure the properties of smoke generated from burning activities. The smoke plume was eventually transported over the low-level cloud decks over the Pacific Ocean for which Dr. Jethva sent his retrieval results to Dr. Lorraine Remer (UMBC), who presented them in the SEAC4RS meeting. Dr. Jethva acted as co-convener of an AGU Special Session: Aerosols above Cloud in Dec 2013. Along with Dr. Omar Torres (GSFC) and Dr. Eric Wilcox (DRI), he contributed in selecting oral and poster presentations and finally convened the session successfully in the AGU meeting. He also presented posters at the AGU Meeting, at the Aerocenter annual update, and at the first Young Scientist Forum held at NASA Goddard in June 2013. He contributed to a poster presentation given by his sponsor at the OMI science team meeting held in March 2014 in The Netherlands. Dr. Jethva gave an invited talk in Sept 2013 in the Climate and Radiation Lab seminar series on his work on the characterization of above-cloud aerosols. He also gave two talks in the internal GEO-CAPE Aerosol Working Group meetings that are held regularly at NASA GSFC. Further, Dr. Jethva participated as a PI and a Co-I on two proposGESTAR Annual Report 2013 - 2014 | 37 als, one submitted to the 2013 NASA ROSES Terra/Aqua and one to the ROSES-2013 Aura Science Team, respectively. The second proposal was awarded funding. In the coming months, Dr. Jethva will create required look-uptables for the retrieval of above-cloud aerosols globally using the OMI observations. He also will be in charge of further algorithm improvement, particularly the refinement in the aerosol models and layer height assumptions. Upon the production of the first version of the processed retrieval, he will analyze the regional and global patterns of above-cloud aerosols in relation to the cloud-free OMAERUV retrieval. He has been assigned a task to perform a regional cluster analysis of the ground-based AERONET data in order to establish the models of near-UV to visible spectral dependence of aerosol extinction and absorption. The models derived from this analysis will be used to carry out OMI-MODIS joint retrievals of single-scattering albedo and aerosol layer heights. Dr. Dongchul Kim (sponsor: M. Chin) investigates aerosol distribution using the NASA GOCART model and multiple observations from space and ground-based remote sensing techniques. He leads the dynamic dust source function development effort in the NU-WRF modeling system. This past year, Dr. Kim led comparisons of the simulated dust aerosols over North Africa and the North Atlantic from five global models that were part of the AeroCom phase II model experiments. By examining model results, Dr. Kim found remarkable differences among the simulated dust amount and distribution. This study highlights the challenges in simulating the dust physical and optical processes and stresses the need for observable quantities to constrain the model processes. He is developing a new dynamic dust source function to improve the current modeling system, which will be applied for several studies on aerosol-cloud-climate system and air pollution. Dr. Kim is investigating a long-term relationship between vegetation and dust. Southern North Africa, ranging from 10°N to 20°N, consists of the Sahara desert, the Sahel, and the Savanna; the abundant dust from this region influences regional and global climate, human health, and even the local economy. The goal of this study is to better understand the area and dust emissions over the region, which strongly interacts with land and atmospheric processes, using a novel Sahel area map determined from the Normalized Difference Vegetation Index (NDVI) from satellite observations and a global aerosol model. From his study on the impact of sulfate and carbonaceous aerosols on cloud, Dr. Kim has investigated the responses of the direct radiative effect of light absorbing and scattering carbonaceous and sulfate aerosols on cloudiness and associated radiative fluxes, using an interactive aerosol-climate model coupled with a slab ocean model. His team has found that without including the impact of aerosols on cloud microphysics in the model (indirect effect), the direct radiative effect of aerosols alone can cause a change in cloud coverage and thus in cloud flux change, which is 38 | GESTAR Annual Report 2013 - 2014 consistent with several previous studies. He also has examined new indices for wet scavenging of air pollutants by summertime rain. The removal of air pollutants by falling precipitation remains of great interest to the scientific community. Although it is important to better understand the wet scavenging of air pollutants by rainfall within the complex nonlinear atmospheric chemistry system, it is difficult to completely separate the washout effect from other gas-phase processes, such as dry deposition, atmospheric mixing, and chemical transformation. In this study he and his team have analyzed the relative influence of the washout effect on the major air pollutants and developed quantitative measures for its estimation using the hourly observations of the criteria air pollutants (PM10, SO2, NO2, CO, and O3) and rainfall in South Korea during the summer season over ten years, 2002-2012. Mr. Matthew Kowalewski (sponsor: S. Janz) provides scientific and engineering support to the Radiometric Calibration and Development Laboratory (RCDL) at GSFC. This support includes proof of concept instrumentation, calibration standards, and technical guidance to the backscatter ultraviolet (BUV) community. Programs supported include GEO-CAPE, NPP and JPSS OMPS, DISCOVER-AQ, and Pandora. The Pandora instrument is a groundbased atmospheric pollution monitoring device that can conduct automated direct sun and diffuse sky radiance observations from remote locations. Mr. Kowalewski performed assembly, maintenance, and calibration testing for the NASA GSFC Pandora instruments to be deployed in the field as part of the DISCOVER-AQ Houston 2013 campaign. Pre-deployment support was provided for a total of ten instruments. The RCDL develops and maintains prototype instrumentation and components for use in solar backscatter research. Mr. Kowalewski ensures that the lab’s technical activities are performed and meet the goals and direction of the lab’s Principal Investigator. The primary focus of RCDL was to complete development of the Geo-CAPE Airborne Simulator (GCAS) in time for deployment to Houston, TX in September 2013 as part of the DISCOVER-AQ Earth Venture campaign. Serving as the lead systems engineer, Mr. Kowalewski directed a diverse team of mechanical and electrical engineers, technicians and analysts in developing the instrument hardware and preparing for its integration and checkout aboard the aircraft. GCAS was successfully completed in time for testing and integration on the B200 aircraft in August 2013. Flight tests showed that the instrument was capable of operating in the flight environment and subsequent data analysis revealed an improvement of at least a factor of 3 over ACAM in air quality product retrieval sensitivity with enhanced ground resolution. During the DISCOVER-AQ Earth Venture campaign, airborne science instrumentation was used for measurements of NO2, Ozone, and other pollutants. After the development and testing of GCAS, among Code 614’s further contributions to the campaign were the deployment and operation of the GEOCAPE Airborne Simulator. Mr. Kowalewski led the instrument team in day-to-day preparations and operations during GCAS’s participation in this campaign. He completed final instrument calibration tests and closeouts of the instrument prior to shipment to NASA Langley, led the instrument integration to the aircraft with RCDL staff and aircraft flight personnel, participated in Langley aircraft Engineering Safety Readiness Reviews, and supported the instrument checkout and science flights. GCAS successfully completed deployment and operations in Houston, flying in all science flights, plus two additional flights coordinated with the Gulf of Mexico GEOCAPE validation experiment (GoMEX). This new instrument operated very well during its maiden deployment, delivering all required data products. Mr. Kowalewski led the data processing effort and on-time delivery of the first version of the GCAS science data products for this DISCOVER-AQ Earth Venture campaign. He also successfully completed the post-mission characterization of GCAS by performing the laser slit function and wavelength registration tests. These results will be used in forthcoming data analyses. Evaluation and processing of the GCAS DAQ flight data began with the evaluation of instrument pointing and geolocation accuracy. Mr. Kowalewski created red/green/blue (RGB) true color imagery from the hyperspectral data set and began efforts to automatically extract water-land transitions in order to validate instruments geolocation algorithm. In addition, the first delivery of GCAS science products was submitted to the DAQ data archive on schedule. In the coming months, preparations for the final DISCOVER-AQ field campaign in Denver, CO will begin, including enhancements to the instrument thermal management system, polarization performance, and processing software. Final pre-deployment characterization tests will be performed prior to integration with the aircraft in late June 2014. The Joint Polar Satellite System (JPSS) OMPS Flight Model 2 (FM2) Nadir instrument completed the official sensor level and Integrated Sensor Suite (ISS) test program. As a representative of the instrument science team, Mr. Kowalewski supported the NASA Flight Project Office during all phases of the OMPS FM2 integration and testing. He also served on an independent anomaly review team in support of the JPSS Clouds and Earth’s Radiant Energy System (CERES) instrument by briefing the GSFC Tiger Team subject matter experts before the LaRC-GSFC anomaly review meeting. He also coordinated component level tests in the GSFC Radiometric Calibration Facility’s vacuum chamber that resulted in exonerating a key part of the sensor’s onboard calibration system. Mr. Kowalewski’s support for the JPSS OMPS will continue as the instrument progresses through its pre-shipment review. This includes participation in instrument sell-off activities and post-test data analyses, and RCDL evaluations. Completion of component level testing of ground support equipment intended to support OMPS performance analysis is anticipated in the upcoming year. Mr. Tom Kucsera (sponsor: M. Chin) supports global and regional modeling and analysis of atmospheric aerosols and trace gases, and supports NASA-sponsored observational programs. He compiles observations from satellite, ground-based, and in-situ measurements for model input, evaluation, and improvement; executes and evaluates atmospheric modeling codes; develops diagnostic software for analysis of model output and satellite data; and develops and maintains websites for user access to large central databases of model output. He also performs software and hardware management, as well as computer administration duties. This past year, a RAID disk array containing 12TB of data had a major hardware failure when the disk controller in this device failed. The controller from another device, which was previously removed from operation, was used and the disk array that contained the data was once again made operational. Several new laptops were acquired and the mandatory NASA IT required controls were installed on these machines along with standard software products. Four new disk arrays were added to the Rondo workstation; with their addition, close to 100 Terabytes of additional disk storage was made available to group members. All managed software and hardware equipment were regularly updated and maintained. In coordination with the NCCS computing center’s system administrators, Mr. Kucsera acquired additional project space for use by the GOCART modeling project. Available to group members, this space was increased from 10TB to 60TB. He then brought over the MERRA meteorological data and stored the data on the local NCCS computer system. Originally, these large volumes of data resided on a remote ftp site that frequently experienced data access issues, which adversely affected the production runs of the GOCART model simulations. Having the information accessible on the locally available project space sped up the performance of the modeling runs and increased productivity. Mr. Kucsera prepared California Station Fire emissions for use in the NU-WRF model. Emission products based on the representative height of the CA Station Fire were determined from the MISR observations. In the fire areas, the emission products were vertically distributed based on the estimated plume heights for the fires in that region. Mr. Kucsera generated re-gridded HTAP version 2 emissions and regional maps. The emission data products and regionally specified maps from the HTAP program’s repository were retrieved. These products were regridded to 1.25x1 deg. resolutions for use in the GOCART model. These data sets consisted of multiple global emission sectors that will be used within the GOCART model. Mr. Kucsera processed plume heights for the 2009 California Station Fire and for large volcanic eruptions. He downloaded MISR data from NASA data archive center and searched for eruptions that may have been visible to the instrument. Once a case was found, the eruption plume heights were determined from the data. For GESTAR Annual Report 2013 - 2014 | 39 the California Station Fire, the August 30, 2009 data fires from the MISR instrument were found to have the best available view of the fires. The plume heights of the observed fires were determined and these results were digitized for use in the NASA NU-WRF model. Additionally, Mr. Kucsera completed 30-year regional anthropogenic GOCART modeling simulations that covered the years 19802009. Simulations were made for the cases where no anthropogenic emissions over Europe and Russia were provided. GOCART model modifications and revisions were made to handle regional dust suppression and tagged runs. These 30-year model simulations were made where emissions were separately restricted within the regions of central Asia, the Middle East, east Asia, the Sahara, and the Sahel. A 2.5 deg. longitudinal x 2 deg. latitudinal model resolution was used for all cases. At the NASA JPL facility, Mr. Kucsera received hands-on training with the MISR data processing tool (MINX). Two TB of MISR data products were acquired, which he later ported on to a local data server. This data contained six months’ worth of data for the observational year of 2008. Amon Dow, a Morgan State undergraduate student, was brought onboard by USRA to assist in the processing of satellite data. Mr. Kucsera acquired office space onsite at GSFC, computer equipment, and established access to group clustered workstations for him. Amon was trained on digitizing fire plumes from the retrieved images from the MISR instrument which resides onboard the TERRA satellite. In summer 2014 and beyond, Mr. Kucsera will be working with NASA-sponsored summer students, and his work will continue on GOCART modeling simulations and analyses as well as Aura project data processing and analysis. Dr. Michael Kurylo (sponsor: J. Rodriguez) supports several national and international activities important to NASA’s Atmospheric Composition Focus Area in Earth Science, including his participation in the programmatic leadership of the Network for the Detection of Atmospheric Composition Change (NDACC) and serving as NDACC liaison to various international projects. He acts as a consultant to the SPARC (Stratosphere-troposphere Processes And their Role in Climate) Project of the World Climate Research Programme, to the Global Climate Observing System (GCOS) Reference Upper Air Network (GRUAN), and to the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) on activities associated with the Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer. Further, he works in collaboration with scientists at the National Institute of Standards and Technology (NIST) in the evaluation of photochemical and kinetic data for national and international assessments of changing atmospheric composition and for the NASA/JPL Panel for Data Evaluation, and in studies of the atmospheric degradation of ozone- and climate-related trace gases. As 40 | GESTAR Annual Report 2013 - 2014 needed, he participates in special projects formulated under the direction of NASA Headquarters. As a co-author for Chapter 3 (“Evaluation of Atmospheric Loss Processes”) in this SPARC study, Dr. Kurylo has played a key role in analyzing and providing recommendations for the kinetic and photolytic atmospheric loss parameters associated with the targeted chemicals. He worked with the lead and co-authors in finalizing chapter recommendations and supporting supplemental material, and on making revisions to chapters and material in response to comments from the international reviewers. He served as a reviewer of Chapter 1 (the Introduction) to the associated SPARC Report. Dr. Kurylo worked extensively with one of the lead authors in preparing a summary of the recommendations in the SPARC report that differ from the NASA/JPL 2010 data evaluation along with their justification. This summary was presented to the NASA/JPL Data Panel for their considered adoption and was subsequently approved. He collaborated with one of the co-lead authors to coordinate input from Chapter 3 of the SPARC Report into Chapter 1 of the 2014 WMO/UNEP Ozone Assessment. Dr. Kurylo has played a significant role in the development of the 2014 WMO/UNEP Scientific Assessment of Ozone Depletion, first in providing detailed input to the Assessment Co-Chairs regarding assessment structure and contents, and second as a contributor to Chapter 1 (“Update on Ozone-Depleting Substances (ODSs) and Other Gases of Interest to the Montreal Protocol”). For the latter, he compiled information on trace gas photochemical and kinetic processes that control the atmospheric burden of such chemicals and help to define their atmospheric lifetimes. He worked with industry representatives and members of the Technical and Environmental Effects Panel for the Assessment to identify new chemicals for inclusion in Chapter 1. After the Assessment chapters underwent an extensive international peer review, Dr. Kurylo worked with the Chapter 1 co-authors and contributors on revising chapter text and tables, which involved an extensive review of newly calculated seasonal and latitudinal atmospheric lifetimes for all trace gases addressed in the chapter. At the request of the Assessment Co-Chairs, he provided a written review of Chapter 5 (“Scenarios, Information, and Options for Policymakers”) and subsequently participated in a review meeting of all five chapters of the Assessment at which recommendations were made for finalizing each chapter and for developing the key chapter bullets that will be included in the Assessment for Policy Makers. As an Emeritus Member of the NDACC Steering Committee, Dr. Kurylo assists the current Co-Chairs and other Committee members in guiding future NDACC activities. To this end he completed extensive edits and revisions to the 70-page NDACC Measurements and Analyses Directory and developed a synthesis of network measurement and analysis capabilities that have been lost or diminished over the past several years, thereby helping to set priorities for new or repositioned measurement capabilities. As an adviser to the GRUAN Working Group on Atmospheric Reference Observations in the areas of network organizational structure and operations, he attended the 6th GRUAN Implementation and Coordination Meeting, where he and one of the NDACC Co-Chairs gave a presentation on NDACC and GRUAN collaborations as both networks attempt to meet future challenges. Based on his NDACC experience, Dr. Kurylo serves as an atmospheric observations representative on the SPARC Scientific Steering Group (SSG). In this capacity he provides recommendations to the Steering Group in the area of systematic measurements as they pertain to the data needs of various SPARC projects. At the recent SPARC SSG meeting in New Zealand, he summarized current NDACC capabilities, focusing on the implications of recent measurement and analysis losses for SPARC and requesting input from SPARC leadership for priorities in augmenting or replacing such diminished or lost capabilities. Finally, Dr. Kurylo served as the NDACC interface to the SPARC/IO3C/IGACO/NDACC (SI2N) Initiative to understand past changes in the vertical distribution of ozone and teamed with NDACC Working Group representatives to encourage NDACC measurements and analysis contributions to the Initiative. He was a co-author of the first of three overview papers for the Initiative, which provided a summary of available ozone profile measurements and measurement capabilities. Going forward, he will assist GRUAN leadership in finalizing GRUAN Report No. 3 (Outcomes of the GRUAN Expansion Workshop), based on the white papers developed for that workshop to guide GRUAN expansion priorities. Dr. Kurylo was the lead author for the white paper on GRUAN Design and Expansion Criteria to Meet the Needs of Atmospheric Process Studies. Dr. Kurylo continued to collaborate with NIST scientists in evaluating kinetic and photochemical data for atmospheric assessment activities and on conducting laboratory studies of the reactivity between OH radicals and several atmospherically important halogenated trace gases. He is a co-author on two journal articles stemming from this work. Based on his recent work as a co-author of Chapter 3 in SPARC Report No. 6, and as a contributor to Chapter 1 in the above-mentioned 2014 Ozone Assessment, Dr. Kurylo has begun working on his contributions to the next release by the NASA/JPL Panel for Data Evaluation. He has made extensive revisions to the 2010 NASA/JPL document to reflect reaction rate recommendations stemming from the SPARC study and has begun working with a NIST colleague in updating photochemical and kinetics recommendations for many trace gases addressed in Chapter 1 of the 2014 Ozone Assessment and including many others that are not presently evaluated by the NASA/JPL Data Panel. Finally, he has continued working with co-authors of Chapter 3 in the SPARC Report in finalizing a research publication drawing upon the activities conducted in this chapter. This year, Dr. Kurylo will attend and participate in the 9th Meeting of Ozone Research Managers (9th ORM) of the Parties to the Vienna Convention for the Protection of the Ozone Layer. He will present the recommendations from the 8th ORM, which he chaired and has agreed to be nominated as a Co-Chair of the 9th meeting. Dr. Lok Lamsal (sponsor: N. Krotkov) develops and improves NO2 algorithms for OMI and other UV-VIS spectrometers, validates NO2 products, and applies NO2 products for scientific studies. Along with the NASA OMI NO2 team, Dr. Lamsal has been working on the development of the next version of OMI NO2 product. He was involved in developing the GSFC NO2 spectral fitting algorithm, evaluating the retrieved slant column densities with independent retrievals from other groups, and calculating scattering weights using VLIDORT. He assessed the impact of the new fitting algorithm in the retrievals of tropospheric and stratospheric NO2 columns. In addition, Dr. Lamsal compared the OMI tropospheric NO2 product (OMNO2, Version 2.1) to ground-based measurements to assess the data quality, and to aircraft-based measurements, both to compare the retrieved column amounts and to assess the sensitivity of OMI NO2 to the a priori profiles used in the retrieval. Model profiles were used to estimate tropospheric column amounts from in situ measurements of NO2 at ground-level. He also investigated the potential improvement of the retrievals that could be realized using a higher-resolution model, with updated emissions inputs, as a source of a priori profiles. Dr. Lamsal used in-situ observations and chemistry-transport models to interpret OMI NO2 observations. He used OMI tropospheric NO2 columns and bottom-up NOx emissions in the GEOSChem model and CAMx regional model to infer top-down NOx emissions. He derived ground-level concentrations from OMI for application to estimate (a) global distribution of NO2 dry deposition and (b) the ratio of global organic matter to organic carbon. In addition, he analyzed OMI measurements to estimate NOx trend. This work resulted in several publications. Since satellite retrievals of NO2 from OMPS wavelengths have not been demonstrated yet, Dr. Lamsal applied the GSFC spectral fitting algorithm to OMI measurements to retrieve NO2 from both OMPS-covered UV (351-379 nm) and conventional visible (405465 nm) windows. He demonstrated that the OMPS wavelengths can be used to retrieve NO2, but with decreased sensitivity compared to visible wavelengths. Retrieval sensitivity is dependent on spectral contrast in the NO2 absorption coefficient and on the scene reflectivity. He also adapted the spectral fitting algorithm for OMPS measurements. The preliminary NO2 retrievals from OMPS are similar to those from the UV window of OMI. The lower OMPS spectral resolution is partially compensated by the higher signal-to-noise ratio. Current OMPS measurements are affected by the poor quality of the wavelength registration and radiometric radiance-irradiance match, impacting NO2 retrievals. Improved calibration along with modest research and improvements in the spectral fitting algorithm will ensure an acceptable continuation of the EOS OMI NO2 data record. To retrieve NO2 from the airborne ACAM measurements, he conducted sensitivity studies of air GESTAR Annual Report 2013 - 2014 | 41 mass factor below and above aircraft to several retrieval parameters, including solar and viewing geometries, height of aircraft, surface reflectivity, aerosols, and NO2 profile shape. The sensitivity studies using VLIDORT radiative transfer algorithm show that the air mass factor above aircraft is weakly sensitive to most input parameters, with the exception of solar zenith angle. Accurate information in input parameters is critically important for air mass factor below aircraft. This study allows for estimating uncertainties in the retrieval of NO2 from the ACAM instrument. Dr. Qing Liang (sponsor: A. Douglass) provides expertise in tropospheric chemistry and the role of emissions in determining the coupling between chemical composition and the climate system. Current efforts involve extending the vertical domain for interactive chemistry to include a combined stratosphere-troposphere chemistry model (the GMI Combo) in order to investigate issues related to the role of ozone in the upper troposphere and lower stratosphere on climate. Major achievements to date on the ACMAP Bromocarbons project include a completed analysis of four model runs using the GEOSCCM model to examine the impact of convective strength on the contribution of bromocarbons to the stratospheric bromine. The results were summarized in a firstauthor paper that was accepted by Atmos. Chem. Phys. in April 2014. Dr. Liang was invited by Prof. Ross Salawitch to join the mission science team for the NSF-funded CONTRAST mission, and attended a pre-mission meeting in Boulder, CO last October and gave an invited talk. She finished implementing tropospheric BrO and Br fields provided by the Harvard GEOS-Chem group into the NASA GEOSCCM model, and running simulations using MERRA Replay fields for comparison with AURA OMI BrO measurements in quantifying atmospheric BrO column in the troposphere and stratosphere and their variabilities. She presented these results at the 2013 AGU Fall Meeting, and published a related article in Eos Trans. AGU. Currently, Dr. Liang is working on the implementation of all major bromine source gases in the GEOSCCM model for a complete account of the BrO sources in the atmosphere to understand the model and satellite differences in total BrO column in the atmosphere, in particular the tropical troposphere. Dr. Liang acted as a contributing author for Chapter 1 of the 2014 WMO Ozone Assessment. In support of this assessment, Dr. Liang has been running a 140-year emission-based simulation using the NASA GEOSCCM V2 model with newly added emissionbased features for five major ozone depleting substances (ODS): CFC-11, CFC-12, CFC-113, HCFC-22 and CH3CCl3. The run was finished in Nov 2013 and the model output was submitted to the CCM group archive. Also, she led a CCl4-modeling project in close collaboration with Dr. Paul Newman (GSFC), Dr. Stefan Reimann (SWISS EMPA), Drs. John Daniel and Brad Hall (NOAA). The work involved included design and conduction of a detailed emission and loss-based simulation for CCl4 from 1960-2017 (run is completed) and four 18-year sensitivity simulations (1995-2012), plus an analysis of model results in understanding the sources and sinks of CCl4. Two major achievements in the past year include providing model analysis results to Dr. Reimann for an oral pre42 | GESTAR Annual Report 2013 - 2014 sentation at the 2013 AGU Fall Meeting, and a first-author paper that was submitted to Geophys. Res. Lett. in Feb 2014 and has received positive review comments. Dr. Liang is currently working on the revision of the manuscript. As the FAA ACCRI project continues, Dr. Liang collaborates with Dr. Henry Selkirk in providing additional model runs for the FAAlead multi-model harmonization project to examine the impact of aviation emission on surface ozone. The ACCRI-II project involves coordinating with other modeling groups in simulation definition, preparing input and output stream design for the needed model run. More specifically, Dr. Liang has been preparing surface emission of ozone precursors, surface boundary conditions of long-lived greenhouse gases and ozone depleting substances, and the GEOS-5 MERRA meteorological fields as model input. Model output includes preparing output scripts to save hourly O3 and precursors at the surface, in addition to the standard model output. As work wraps up on the SPARC Lifetimes Assessment Report, Dr. Liang has been working on two papers based on results from Chapters 5 and 6 of the Lifetime Assessment, one that was coauthored with Dr. Susan Strahan and others and published in Journal of Geophysical Research-Atmospheres in March 2014, and another that is currently in progress. The research objective of Dr. Junhua Liu (sponsor: J. Rodriguez) is to understand the processes affecting atmospheric composition in the troposphere and lower stratosphere, specifically the sources, chemical evolution and transport pathways. Her current research focuses on quantifying the factors controlling the observed interannual variations (IAV) and trends in tropospheric O3 and precursors during the past 20 years and investigating their interaction with the Earth’s climate. Her study focuses on a) the extra-tropics of the Northern Hemisphere (NH), where most of the ozonesonde and long-term surface ozone observations are available and b) the wave-1 ozone maximum region in the Southern Hemisphere, off the coast of Africa/Asia, where models indicate high stratospheric ozone input in the troposphere. Insights gained from her analysis of the GMI CTM results will help the chemistry-climate modeling (CCM) community to test the predictive capability of IAV in the tropospheric ozone in the CCM, which has the same emission, chemistry and transport algorithms. Dr. Liu has evaluated the GMI 20-year hindcast simulation based data from selected ozonesondes from the mid-latitude regions of the northern and southern hemispheres, GMAO-assimilated column ozone based on OMI/MLS, and variable satellite observations (UARS/MLS, TOMS/MLS, and SUBV merged ozone data). She is examining the stratospheric impact on tropospheric Ozone IAV at these regions using several GMI hindcast sensitivity simulations and a stratospheric tracer simulation. She will explore and quantify the effects of different controlling factors including STE, dynamics and emissions over the mid-latitude of northern and southern hemisphere. Dr. Liu prepared an abstract for 2014 IGAC/SPARC CCMI workshop to be held in May 2014, and gave a talk at the CCMI planning meeting at Goddard in March 2014. She co-authored a manuscript which has been accepted for publication in Earth’s Future in April 2014. Work is in progress on a manuscript from the results during Jan-May 2014 about the GMI CTM model evaluations and stratospheric impact on tropospheric ozone IAV over the mid-latitude. The research of Dr. Mark Olsen (sponsor: A. Douglass) focuses on the analysis of stratosphere-troposphere exchange, transport in the lower stratosphere and troposphere, and the coupling of stratosphere and troposphere in both global atmospheric data sets and output from global models. Eight years of OMI/MLS analyses from the GMAO ozone assimilation system were used to investigate the variability and trends in tropospheric column ozone in the tropics to middle latitudes. Multiple linear regression was used to examine the contribution of ENSO and the QBO to the variance of the deseasonalized tropospheric column ozone. ENSO has the greatest influence with a statistically significant explained variance greater than 20% in a large equatorial region extending from Africa to Central America. Other smaller regions with significant ENSO influence exist over North America, the Atlantic, and southern and northern Pacific. The maximum influence occurs in the equatorial western Pacific with an explained variance of greater than 60%. The QBO explained variance is not statistically significant over this time period, although the confounded variance explained by both QBO and ENSO is significant in the tropics from the Indian Ocean through the Pacific. The residual trends were examined by removing the QBO and ENSO variability from the tropospheric ozone time series. Statistically significant trends from 4-11% per decade exist throughout much of the tropics, with the maximum occurring in the Western Pacific. Similar multiple regression analysis was done with output from the GMI chemistry transport model (CTM). Compared to the OMI/MLS analyses, the patterns of variances explained are very similar over the same time period; however, the 1991-2012 simulated residual trends are much less at 2-6% per decade in the tropics. This implies that the larger trends over the OMI/MLS time period are not representative of the longer record. The timing of the NH stratospheric final warming (SFW) and associated horizontal transport in the Goddard Chemistry Climate Model (CCM) was compared to results derived from observations and an isentropic transport model. The variability of the easterly winds, shortly after the SFW, was found to be less than the observations; however, the impact on the horizontal transport was similar to the observations. A trend in the extratropical stratospheric N2O was found in the CCM that was greater than can be explained by emissions. This finding is supported by observations that suggest changes in the stratospheric circulation. Dr. Olsen is investigating the impact of stratospheric intrusions on air quality and standards violations, and has found that the timing of the events and boundary layer heights are particularly important to the influence at the surface. The capability of simulating/forecasting events relative to model resolution is currently being examined using output from the Goddard CCM, GMI CTM, and ozone assimilation system. Additionally, an assessment of NASA-supported tropospheric ozone products was completed and published. These OMI and MLS products include trajectory mapping, direct profile retrieval, and assimilation. Although all the products are shown to be capable of measuring and monitoring exceptional tropospheric ozone events, the assimilation product is deemed superior for science applications due to greater spatial coverage and better accounting for measurement errors. Among other objectives in the coming year, Dr. Olsen will begin analyzing the ozone distributions from data assimilation systems and OMI column ozone observations relative to a jet/tropopause coordinate system, part of his work on a new Aura Science Team grant awarded to (PI) Dr. Gloria Manney. Dr. Cynthia Randles (sponsor: P. Colarco) investigates the sensitivity of aerosol direct radiative forcing to (1) changes in model resolution, (2) assumptions about aerosol optical properties, particularly the single scattering albedo, and (3) changes in aerosol vertical distributions. She also investigates the effect of biomass burning aerosol heating on temperature tendencies over southern Africa using the GEOS-5 Data Assimilation System. As part of her work with SEAC4RS, she evaluates the performance of the Goddard Aerosol Assimilation System during the SEAC4RS field campaign. Dr. Randles served as a constituent forecaster for the SEAC4RS field deployment in Houston, TX from Aug 21 - Sept 12, 2013. From her work with this campaign, she presented her evaluations of the NASA Goddard Aerosol Assimilation System (GAAS) at the SEAC4RS science team meeting held in Boulder, CO in April 2014. In the coming year, she will complete her evaluation of the SEAC4RS Reanalysis using satellite, ground-based and in situ data from the field campaign; a paper manuscript will be written on this topic. She also will contribute to a SEAC4RS case study, led by Ralph Kahn, which will combine satellite, in situ, and model data to paint a clearer picture of aerosol conditions. From her work that focuses on studying the effect of biomass burning aerosol heating on temperature tendencies, she has delivered two posters, one at the AMS Meeting in February 2014, and one at the AeroCom Meeting in Germany in September 2013. Dr. Randles will finalize simulations of biomass burning in southern Africa and prepare a manuscript about the impacts of these aerosols on temperature tendencies, as diagnosed using the GEOS-5 data assimilation system. For his work on Aura Validation and DISCOVER-AQ, Dr. Christian Retscher (sponsor: K. Pickering) calibrates and analyzes the PANDORA and CLEO spectrometer systems to measure trace gases in the atmosphere (e.g., O3, SO2, HCHO, BrO, NO2, H2O) that have absorption spectra in the 300 to 525 nm spectral range. He also writes and deploys the necessary automated software needed for Pandora operation and data analysis. Various ground GESTAR Annual Report 2013 - 2014 | 43 campaigns will be conducted that include comparisons with reference ground-based instruments. Twelve or more Pandoras will be deployed at multiple sites during individual campaigns. This past year, he has provided ongoing support to the Aura Validation Data Center (AVDC) by maintaining AVDC resources related to the Pandora data sets, updating related file acquisition and distribution systems, updating AVDC databases, and providing support on database access and security. Dr. Retscher has provided support to processing Pandora instrument data. Next to ongoing operational data processing, he and his team have performed the reprocessing of historic data sets back to 2008. This included the update and registration of calibration files in the operational data processing scheme. He also finalized backlog processing of DISCOVER-AQ related data, and performed optimization to data processing codes and wrappers, which allows for a more detailed analysis of Pandora data. Dr. Henry Selkirk (sponsor: A. Douglass) works on a task that has three subtasks: characterization of the vertical structure and variability of water vapor and ozone in the tropical upper troposphere and lower stratosphere using balloon sondes; analysis of transport and moisture processes in observations and models through (a) examination of vertical and horizontal transport processes in the upper troposphere and lower stratosphere, particularly in the tropics and subtropics and (b) assessment of the representation of moist processes in the GMI chemical transport model and the GEOS CCM, a chemistry climate model; and, scientific support of NASA airborne missions including (a) the Figure: Summary of dual ozone sonde flights, January-March 2014. Shown are both ascent Airborne Tropical Tropopause Experiment and descent mixing-ratio profiles of ozone, sulfur dioxide and potential temperature. At (ATTREX) and (b) the Studies of Emissions lower right are shown the integrated columns of SO2 to 15 km expressed in Dobson units and Atmospheric Composition, Clouds (DU). (Image: H. Selkirk) and Climate Coupling by Regional Surveys (SEAC4RS). This past year, Dr. Selkirk made two trips to Houston, TX to take part lead a group of SEAC4RS colleagues in a study comparing upper in the SEAC4RS field campaign, where he led the work of the tropospheric/lower stratospheric structure over the tropics and water vapor sounding project, completing 31 balloon soundings, the subtropics using observations of water vapor, ozone and assoincluding 18 water vapor soundings. He supported flight planning ciated quantities from Ticosonde and the 2013 SEAC4RS mission. for the ER-2 and DC-8 as part of a team led by his colleague Dr. In June 2013, NASA renewed funding for the Ticosonde project Leonhard Pfister (NASA Ames Research Center). Dr. Selkirk will 44 | GESTAR Annual Report 2013 - 2014 under the proposal “TICOSONDE: Tropical Balloon Sonde Observations of Ozone, Water Vapor and Sulfur Dioxide for Continued Support of Satellite Calibration and Validation Capabilities”. Under this project, another four years of balloon sonde measurements of water vapor and ozone will be supported in Costa Rica. (The Ticosonde project will also be making sonde measurements of sulfur dioxide at Costa Rica over the next two years; these are supported under Dr. Selkirk’s second GESTAR Task.) Dr. Selkirk traveled to Costa Rica with Co-Investigator Gary Morris (Valparaiso University) to review sounding practices and to confer with UCR Co-I Dr. Jorge Andrés Diaz and his team on launch strategies. In the past 12 months, the team at the University of Costa Rica in San José launched 40 weekly balloon sondes as part of the long-running Ticosonde project. These launches yielded 40 ozone profiles and 8 water vapor profiles, bringing the totals since 2005 to 403 and 168, respectively. Going back to 2005, this is the longest continuing series of water vapor/ozone profiles in the tropics. Ticosonde co-investigator Dr. Holger Vömel of the Deutscher Wetterdienst has developed a preliminary GRUAN CFH water vapor product, and Dr. Selkirk has generated an 8-year climatology based on this processing. Of particular interest to the scientific community is the frequency distribution with height of relative humidity with respect to ice and the incidence of supersaturation. The seasons December-February (DJF) and June-August (JJA) display different structures with respect to relative humidity over ice. In DJF, the upper troposphere (<16 km) is on average much drier than in JJA, with the reverse being true in the next 4 km. In both seasons, supersaturation events occur above 380 K, the nominal lower bound of the stratospheric overworld. Despite numerous challenges, the ATTREX Guam deployment in early 2014 emerged as a scientific success. Six science flights over the western tropical Pacific with the Global Hawk aircraft were completed. Dr. Selkirk was in the field for the final 28 days of the campaign, providing key flight planning and weather support to the Science Team. Four of the six flights were flown when Dr. Selkirk was in the field. The ATTREX data are unique, for the first time providing lengthy horizontal legs of water vapor measurements near the tropical tropopause in this key part of the global climate system. Dr. Selkirk was the Principal Investigator on a proposal where the goal is to advance the understanding of the variability of water vapor, clouds and trace gases in the upper troposphere and lower stratosphere (UT/LS) and to improve the model simulation of these critical elements of climate forcing. The proposed research will use an integrated approach that makes use of extensive suborbital and satellite data along with the state-of-the-art GEOS5 atmospheric general circulation model (AGCM). The proposal team that Dr. Selkirk assembled includes three Co-Investigators and three Collaborators who are experts in the fields of modeling, satellite measurements and retrievals, and aircraft data analysis. Competition is expected to be very stiff; a selection decision is expected before July 2014. For this second task, Dr. Henry Selkirk (sponsor: J. Joiner) makes dual ozonesonde measurements of SO2 in Costa Rica over a two-year period. This work is done in collaboration with Dr. Gary Morris of Valaparaiso University and Dr. Jorge Andres Diaz of the Universidad de Costa Rica (UCR). During the first year of the Ticosonde SO2 sonde program in Costa Rica, eleven successful dual ozone sondes were launched from their site at the Universidad de Costa Rica in San José, 35 km away from active Volcan Turrialba. Figure 1 (p.44) is a summary of five dual ozonesondes launched between January and March 2014. These data are being used to validate SO2 retrievals from satellite instruments, including OMI on Aura and the new OMPS instrument on the Suomi-NPP satellite. Future plans include launching at least one dual ozone sonde each month in the coming two years. A paper is in preparation reporting on the results for the first year’s soundings. Mr. Stephen Steenrod (sponsor: J. Rodriguez) provides support for the Global Modeling Initiative (GMI) investigations of chemical and dynamical aspects of the middle and lower atmosphere, which involves the development, optimization, multiprocessing, execution, and evaluation of atmospheric modeling codes; development of diagnostic software for analysis of model output and satellite data; and development of general user software to allow simple access to large central databases of model output. This year, Mr. Steenrod’s work involved the expansion of the GMI-CTM tracer suite by doubling the number of species simulated within the tracer package. Several species were added, described by the IGAC/SPARC Chemistry-Climate Model Initiative (CCMI), to study various aspects of tropospheric transport characteristics, especially looking at the remote influence of regional sources of pollutants. Also added were species to study stratospheric-tropospheric mass exchange, the stratospheric residual circulation and stratospheric influences on tropospheric chemistry. Mr. Steenrod completed a simulation using this new suite for the 34-year CCMIsimulated hindcast period. Mr. Steenrod also recoded the Kinetics Module Generator (KMG) for the GMI chemical code to enable the use of the latest release of IDL (version 8). KMG creates the Fortran code for the chemical mechanism of the GMI model using input files that list the mechanism’s desired reactions and rates. This software had broken several years ago when IDL dropped support for “projects”, so GMI needed access to outdated IDL software to update the model’s chemical mechanism. He also provided various types of support to many GMI model users, including support for details of the model, its use and its output. Mr. Steenrod designed an experiment to study the effects of doubling the horizontal resolution on the simulations and sensitivity tests for chemical reactions and rates. Significant effort was made to prepare the GMI model output for GESTAR Annual Report 2013 - 2014 | 45 submission to the CCMI repository, which involved consolidating the various GMI output streams into the CCMI specified output form. He added the capability in the GMI model to calculate the effects of solar proton events on the full chemistry model and ran a multi-year simulation that was recently included in a manuscript accepted for publication. Mr. Steenrod conducted many test and production runs of the tracer suite and full chemistry model. Over the past year, he has identified some model errors, including one that affected the handling of cloud optical depths plus an error in a boundary condition file used to determine the surface vegetation type. Mr. Steenrod created many new boundary condition files for model runs at various resolutions. Further, his administration support included updating and securing the operating systems as well as updating and maintaining the hardware on 20 of the Code 614 cluster computers in a timely and unobtrusive manner. Work will continue on improving the GMI model and fixing any issues that arise. There are current plans to implement two more tracer species and to add the photolytic effects of stratospheric aerosols, which are currently neglected. He plans to submit model results to CCMI and run the tracer suite for the high-resolution full chemistry period currently being run. His computer cluster group leader activities will continue, especially the OS security updates and installation of new and replacement hardware. A priority of Dr. Susan Strahan (sponsor: J. Rodriguez) is the analysis of stratospheric and tropospheric observations to advance the understanding of atmospheric transport and chemical processes and improve their representation in models. Results from observational studies are used to evaluate NASA/GSFC models, such as the Global Modeling Initiative (GMI) chemistry transport model and the GEOS Chemistry-Climate Model (CCM), as well as CCMs participating in international assessments. Another priority is the management of GMI model simulations and output, including quality control and evaluation. The centerpiece of this year’s research has been a high spatial resolution simulation of the GMI chemistry and transport model (CTM) with meteorology from the GMAO’s MERRA reanalysis from 2004-2013. One simulation was run continuously for this period, while another series of short simulations without heterogeneous chemical loss was integrated for each hemisphere’s winter and spring each year. The purpose of these experiments is to quantify polar ozone (O3) depletion and its interannual variability in the Arctic and Antarctic. The comparison of the results of these experiments with satellite observations of ozone and the long-lived trace gas nitrous oxide (N2O) has spun off three studies, which are all related to the impact of stratospheric transport variations on composition and ozone depletion. Two manuscripts are in preparation. The first study found that the amount of ozone transported to the Antarctic each year varies considerably and impacts the size of the ozone hole. This effect is independent of the two other well-known factors, chlorine abundance and lower stratospheric 46 | GESTAR Annual Report 2013 - 2014 temperature, that affect the size and depth of the hole. Very weak transport of O3 to the Antarctic in 2011 produced one of the largest ozone holes ever observed, just as large as the hole in 2006, a year with greater ozone transport. This work is important because it identifies a way in which the ozone hole area can vary that is not related to the expected area decrease due to declining chlorofluorocarbons. These results were reported in a press release at the AGU Fall 2013 Meeting (http://www.nasa.gov/ content/goddard/new-results-from-inside-the-ozone-hole/). A second study discovered, through comparisons between the GMI simulations and NASA satellite observations, that the amount of inorganic chlorine (Cly) inside the Antarctic ozone hole has previously unrecognized large interannual variations. There are no measurements of total Cly in the lower stratosphere, but Cly can be deduced by its correlation with N2O, a trace gas measured by the Aura Microwave Limb Sounder (MLS). Although a Cly decline rate of ~0.7%/year was expected in the past decade due to the impact of the Montreal Protocol, this study revealed that stratospheric transport is responsible for Cly variations, both positive and negative, that are ten times greater than this. This transport-driven variability means that very large ozone holes are likely to appear during very cold Antarctic winters over the next 20 years, even though stratospheric Cly levels are decreasing. The third study used MLS N2O observations to discover that the cause of the chlorine variability inside the Antarctic ozone hole was a variation in middle stratospheric tropical mixing that occurred one year earlier. The variations in mixing are caused by the QuasiBiennial Oscillation (QBO), a dynamical oscillation of tropical wind direction confined to the deep tropics. The variations in mixing affect southern midlatitude composition, and ultimately become trapped in the Antarctic when the polar vortex forms in fall. Strong descent inside the vortex transports the composition variability to the Antarctic lower stratosphere where it impacts ozone depletion in late winter. This study revealed a remarkable and unexpectedly strong connection between a tropical dynamical process and polar chemistry that occurs on a timescale of one year. This work is important to chemistry climate modeling because it identifies an important but unrecognized cause of composition variability that affects polar ozone depletion and hence the credibility of simulations of polar ozone recovery in the 21st century. Dr. Strahan collaborated with scientists within and outside of GSFC on the topics of tropospheric transport pathways (Dr. Darryn Waugh, JHU), the evaluation of satellite-based methods for calculating tropospheric column O3 (Dr. Jerry Ziemke), the evaluation of model-derived lifetimes of CFCs (Dr. Martyn Chipperfield, University of Leeds), and the impact of simulated response to increasing greenhouse gases and decreasing CFCs on 21st century ozone predictions (Dr. Anne Douglass, GSFC). Each of the four collaborations resulted in a publication in the Journal of Geophysical Research. In her role as GMI Project Manager, Dr. Strahan has continued to oversee the integration of a number of multi-decadal ‘hindcast’ simulations that use MERRA meteorology in the GMI model to understand how changing anthropogenic emissions have affected tropospheric composition, especially the pollutants O3 and CO. Three simulations of the period 1990-2012 using different emissions inputs have been integrated, including one at high spatial resolution (1 deg. x1.25 deg.) to test the impact of resolution on simulated tropospheric composition. Additionally, a simulation spanning 1979-2012 has been integrated for the SPARC project ‘Chemistry Climate Modeling Initiative’ (CCMI). In the coming year, Dr. Strahan’s highest priority is to publish the results on chlorine variability inside the ozone hole and on the QBO’s effect on the Antarctic composition. A study to quantify interannual variability in the chemical and transport contributions to Arctic and Antarctic ozone depletion is planned, based on observations and the GMI simulations with and without heterogeneous chemistry. Further investigation of the impact of the QBO on stratospheric composition is also planned, which will utilize a recent multi-decadal high-resolution simulation with MERRA meteorology, the Goddard CCM, and stratospheric observations from the 1990’s to the present. Quantifying the effect of the QBO on stratospheric composition is essential for the identification and attribution of the stratospheric circulation change caused by increasing greenhouse gases. Dr. Sarah Strode (sponsor: J. Rodriguez) contributes to the three-dimensional modeling efforts, both for Chemical Transport Models and Chemistry Climate Models, and carries out simulations for the Atmospheric Chemistry-Climate Model Intercomparison (ACCMI). She has used chemical transport model simulations to examine the observed trends in surface ozone over the United States. A comparison of model simulations with changing NOx, CO, and hydrocarbon emissions with a simulation with fixed emissions confirms the role of pollution controls in the decreases in surface ozone in the eastern U.S. This study also examines how well a global model can capture the year-to-year variability seen in surface observations in different seasons and regions of the United States. Future work will investigate whether increasing model resolution improves our ability to simulate the year-to-year variability. Dr. Strode presented her work on trends and variability in U.S. ozone at the 2013 AGU Fall Meeting. Dr. Strode also is analyzing hindcast model simulations of the last decade to assess whether models can reproduce observed trends in carbon monoxide and attribute their causes. For this analysis, she compares chemical transport model simulations with changing versus fixed pollution emissions in order to separate the role of emissions. She also compares chemical transport model simulations, which have prescribed meteorology based on atmospheric reanalysis, with chemistry-climate model simulations. This comparison can help with understanding how atmospheric transport impacts the modeled and observed trends. Dr. Strode will present her work at the upcoming CCMI workshop in May 2014. The atmospheric lifetime of methane, an important greenhouse gas, depends on concentrations of OH. Dr. Strode is investigating how model biases in factors such as humidity and ozone impact the modeled concentration of OH, and hence the modeled methane lifetime. Her approach is to adjust individual variables that affect OH to better match observations and then use a chemistryclimate model to quantify how the change impacts methane lifetime. Dr. Strode presented work on this topic at the 2013 Chemistry-Climate Model Initiative Workshop. A paper published in JGR by Dr. Strode and Dr. Steven Pawson compares the interannual variability in carbon monoxide (CO) in atmospheric model simulations with observations. It then uses the model to estimate how much CO would change in different regions of the atmosphere in response to changing emissions. A comparison of the change due to emissions with the interannual variability allows them to identify regions where the impact of changing emissions could be detected most rapidly. Dr. Ghassan Taha (sponsor: R. McPeters) leads the Aura Validation Data Center (AVDC) activities, supports various Aura and NPP calibration and validation activities, maintains web content and related system hardware management activities, and maintains the administration of the center’s databases. During this past year, after a hardware failure, Dr. Taha rebuilt the AVDC server that hosts the satellite toolkit in order to continue producing subsatellite track predictions. He continued to maintain and update the AVDC software, hardware and web page. The AVDC continued to support various AURA and NPP teams and a wide range of users. Dr. Taha expanded the data holdings of the AVDC by adding OMPS, SBUV, and GOME-2 Level-2 and the subsatellite and ground station overpass data. He also reprocessed a new version of the Generic Earth Observation Metadata (GEOMS)compliant balloonsondes and ground-based measurements and updated the online AVDC database. The process of collecting and harmonization is now automated. In addition, he reprocessed a new version of the AVDC hdf5 files for ENVISAT data (SCIAMACHY, GOMOS, and MIPAS) and will provide the overpass files afterward. In support of SEAC4RS/SEACIONS, the AVDC provided OMPS, MLS, and OMI Field of View (FOV) station predictions. Dr. Taha also performed initial OMPS LP, NP, and MLS ozonesonde and water vapor data comparisons in support of the SEAC4RS/SEACIONS field campaign. Further, the AVDC is coordinating the GEOMS and data harmonization activities, and constantly updating the Table Attribute Values and Template, as well as providing constant support to the data centers, which includes NDACC, and ESA’s EVDC NORS projects as well as many stations’ principal investigators. For this second task, Dr. Ghassan Taha (sponsor: G. Jaross) GESTAR Annual Report 2013 - 2014 | 47 investigates NPP OMPS Limb sensor data quality with the goal of identifying improvements to current and future Limb sensors. Research is focused on alternative approaches to data reduction that have potential implications for sensor and algorithm design. He also supports OMPS limb levels 1 and 2 development activities. Dr. Taha developed a cloud algorithm that detects all Polar Mesospheric clouds (PMC’s), Polar stratospheric Clouds (PSC’s), tropospheric clouds, and aerosol plumes, observed by OMPS LP. Daily maps of clouds were produced, and early results are promising, but further tuning is required. Dr. Taha analyzed different versions of OMPS level-1 radiances in order to improve the quality of the measurements. He also provided High-Low Gains (HG-LG) tangent height offset zonal means time series for the newly corrected radiances. Furthermore, he analyzed OMPS level-1 HG and LG radiances stray light contribution and investigated an alternative methodology for the stray light corrections. He also provided analysis and advice for various sample tables uploaded to the instrument. Dr. Taha conducted a detailed analysis of the official release of OMPS LP ozone profiles version 1, and for the proposed version 2; he provided feedback for potential improvements. Dr. James Wang (sponsor: S. R. Kawa) researches the inverse modeling of atmospheric carbon dioxide. He, his sponsor and others conducted a simulation experiment for the planned NASA ASCENDS active CO2 remote sensing mission and found that the high-precision measurements would likely meet requirements for improved understanding of long-term carbon sinks. Their regional inverse modeling is well suited for quantifying the ability of the high-density ASCENDS observations to constrain CO2 emission and uptake at a higher resolution than other satellite data studies. They used a novel approach that relied on high-precision Lagrangian transport modeling to calculate footprints describing the sensitivity of satellite column measurements to surface fluxes in upwind regions. Their comparison of flux uncertainty reductions with those from a companion global ASCENDS inversion on a coarser grid demonstrates how quantitative results can depend on inversion methodology. As lead author, Dr. Wang submitted a paper on these results which has been accepted for publication on the ACPD website and is undergoing peer review. Dr. Wang also contributed to the writing of a white paper for the planned NASA ASCENDS CO2 satellite mission. He gave an oral presentation on his research at an ASCENDS workshop, and provided updated text and figures for the modeling chapter of the paper as well as comments on the drafts of two of the chapters. The paper will be published and available for public comment sometime in mid-2014. This past year, his work resulted in both oral and poster presentations at NASA Goddard and the 2013 AGU Fall Meeting. Also for AGU, Dr. Wang contributed material and comments for a research talk in the Atmospheric Science section. The paper was “Observing System Simulations for ASCENDS: Synthesizing Science Measurement Requirements”, by Stephan 48 | GESTAR Annual Report 2013 - 2014 R Kawa, et al. In May 2014, Dr. Wang presented a poster at the Tenth International Workshop on Greenhouse Gas Measurements from Space, held in Noordwijk, The Netherlands. Dr. Wang was a Co-Investigator on two NASA ROSES grant proposals. Going forward, Dr. Wang will complete the global CO2 inverse modeling for the entire analysis period, comparing results obtained using different combinations of ground-based and GOSAT satellite CO2 measurements, and by using other data sets for validation. For his work on this second task, Dr. James Wang (sponsor: B. Duncan) conducts modeling of interactive atmospheric methane, carbon monoxide, and hydroxyl chemistry and long-term trends. In 2014, Dr. Wang began his part of a 2012 NASA MAP-funded project on modeling interactive atmospheric methane, carbon monoxide, and hydroxyl chemistry and their long-term variability and trends. He is working in collaboration with Dr. Bryan Duncan (PI), and building upon the work of Elena Yegorova, who left GSFC in 2013. Dr. Wang transferred the atmospheric chemistry and climate model code to his own computing environment and has been familiarizing himself with the model, and has continued the development and testing of a wetland methane emission parameterization. Future work will involve multi-decadal historical simulations and compare them with observations. Later on, he will run future simulations using IPCC emissions scenarios. For Dr. Jerald Ziemke (sponsor: P. Newman), his major research objectives are widespread: to develop a long-record (1979-current) of tropospheric and stratospheric ozone by combining v9 measurements from TOMS and OMI; to reprocess OMI/MLS trajectory mapped global ozone measurements using OMTO3 v9 total ozone for OMI and MLS v3.3 ozone profile data upon availability and validate these fields using ozonesondes and other satellite ozone measurements; to evaluate the GMI model and free-running CCM using ozone data sets to study ozone features in these models from short to decadal time scales; to invoke calculations of the influence of stratosphere-troposphere exchange (STE) using the trajectory mapped tropospheric and stratospheric ozone data; to quantify the strengths and weaknesses of four global ozone products: cloud slicing, trajectory mapping, data assimilation, direct ozone profile retrieval, evaluations that will involve comparisons with ozonesonde data (WOUDC, SHADOZ) and aircraft mission ozone measurements; to evaluate ENSO and the Madden-Julian Oscillation, and mid-latitude baroclinic wave forcing for their effects on tropospheric and stratospheric ozone in the measurements and models; to perform algorithm maintenance and improvements to the trajectory mapped ozone products; and to write journal papers relating to his research of the measurements and models. From his research on tropospheric ozone over the past year, Dr. Ziemke has co-authored two papers, one that has been published in Bull. Amer. Meteorol. Soc., and one that is in press with BAMS, as well as one that is in review with the journal Elementa. From his research involving data measurements from Aura, he has coauthored one paper published in Journal of Geophysical Research and another in review with JGR, and was lead author on a paper in press with JGR. Work will continue with regards to producing ozone data products, attending meetings, writing proposals, and publishing science papers. He will write a new ACMAP proposal in the upcoming months; his recently submitted NPP proposal is currently under review. CODE 615: CRYOSPHERIC SCIENCES LABORATORY Dr. Ludovic Brucker (sponsor: L. Koenig) conducts research to advance and validate satellite-derived properties of snow and ice on Earth using space-based microwave radiometers and scatterometers. He was co-I on a NASA GSFC Science Innovation Fund to utilize the Aquarius satellite observations over the polar regions. To allow for an efficient use of the Aquarius data over the polar regions, and to move forward our understanding of the L-band observations of ice sheet, sea ice, permafrost, and polar oceans, he produced new weekly-polar-gridded products of Aquarius L-band brightness temperature, L-band normalized radar cross section, and sea surface salinity. These three data sets are produced on the version 2.0 Equal-Area Scalable Earth (EASE) grid, with a grid cell resolution of 36 km. The U.S. National Snow and Ice Data Center (NSIDC) will archive and distribute these new products. These products were presented at the 2013 AGU Fall Meeting in San Francisco, CA and at the microRAD meeting in Pasadena, CA. The Antarctic Plateau presents ideal characteristics to study the relationship between microwave observations and snow/ice properties. It is also a promising target for radiometer calibration and sensor inter-calibration, which are critical for applications requiring sub-kelvin accuracy, such as sea surface salinity retrievals. Over the past year, Dr. Brucker analyzed the spaceborne Aquarius L-band radiometric observations collected since August 2011 over the Antarctic Plateau, and focused his research on their temporal evolutions at Dome C. Over the Antarctic Plateau, Aquarius brightness temperatures (TBs) have a relatively low annual standard deviation (0.2–0.9 K) where melting never occurs. However, the analysis of the TB time series at Dome C revealed significant variations (up to 2.5 K) in summer. First, these variations are compared with a remote sensing grain index (GI) based on highfrequency (89 and 150 GHz) shallow-penetration TB channels. Variations in the ratio of TBs observed at horizontal and vertical polarizations are synchronous with GI changes. Second, Aquarius TB variations are compared with the presence of hoar crystals on the surface, identified using surface-based near-infrared photographs; in fact, the largest and longest changes in TBs correspond to periods with hoar crystals on the surface. Therefore, in spite of the deep penetration of the L-band radiation, evolutions of the snow properties near the surface, which usually change rapidly and irregularly, do influence L-band observations. For the second year in a row, Dr. Brucker was deployed to southeast Greenland to monitor the Greenland firn aquifer. This campaign was jointly funded by NSF and NASA (PI: Dr. Forster, U. of Utah). In spite of the extreme weather conditions in southeast Greenland, which caused several weeks of delays, Dr. Brucker and his teammate (Clément Miège) recorded 35 km of radar data, drilled a shallow snow/firn core, and collected GPS measurements to monitor the ice velocity and flow direction. Dr. Kelly Brunt (sponsor: T. Markus) provides continued support to Ice, Cloud, and land Elevation Satellite-2 (ICESat-2), which includes the scientific planning for Multiple Altimeter Beam Experimental Lidar (MABEL), the airborne simulator of the laser altimeter set to fly on ICESat-2, and the coordination of a team (internal and external to NASA Goddard) that is constructing an ICESat-2 calibration and validation plan using earth-based targets. Dr. Brunt continues her activities as Co-Investigator for the ICESat-2 Science Definition Team (PI: Sinead Farrell) associated with postlaunch calibration and validation planning. For her work with this team, she generates flight plans for the ICESat-2 airborne simulator named MABEL. In September 2013, she participated in a MABEL deployment based out of Langley, VA, aimed at surveying deciduous trees along the eastern coast. She is currently working with the ICESat-2 Science Definition Team on generating flight plans for an upcoming ICESat-2 MABEL field campaign in Fairbanks, AK (July 2014). Dr. Brunt will then participate in the ICESat-2 MABEL deployment, scheduled to occur in July/August 2014. In December 2013, Dr. Brunt concluded work and participation in two 2013 NASA Science Innovation Fund (SIF) awards: 1) Constraining Arctic ice sheet and sea ice melt by detecting seasonal ocean freshening (PI: Lora Koenig), and 2) Tidal Loading and Surface Deformation along Ice Fractures: Insights from Earth Analogs for Icy Satellite Processes (PI: Terry Hurford). In March 2014, Dr. Brunt traveled to Juneau, AK and participated in the field component of an EPSCoR project titled, “Developing a strategy to evaluate and monitor outburst floods, Mendenhall Glacier, Alaska” (PI: Jason Amundson, Univ of AK, Southeast). The team performed a ground-based radar survey of a tributary to the Mendenhall Glacier, named Suicide Basin, known to produce sub-glacial outburst flooding that affects parts of the city of Juneau. Dr. Paolo de Matthaeis (sponsor: D. Le Vine) conducts work in support of the Aquarius/SAC-D mission, whose goal is to provide global sea surface salinity maps from space for study of largescale ocean processes and climate change. After the successful launch of Aquarius in June 2011, calibration/validation (cal/val) activities and data analyses are now taking place. Since July 2012, Dr. de Matthaeis has been leading the Aquarius RFI Working Group. In addition to the Radiometer RFI, he has also worked on the Aquarius Scatterometer RFI Detection and Mitigation, and his research has resulted in presentations and publications. He has produced preliminary estimation of sea ice thickness using GESTAR Annual Report 2013 - 2014 | 49 Aquarius data, and this work also resulted in a presentation. During the past year, Dr. de Matthaeis has received two NASA awards for his work as part of the Aquarius team. In July 2013, Dr. de Matthaeis was appointed co-chair of the IEEE Geoscience and Remote Sensing Frequency Allocations in Remote Sensing (FARS) Technical Committee. He has been organizing RFI sessions for the IEEE International Geoscience and Remote Sensing Symposium and for the 2014 XXXI URSI General Assembly and Scientific Symposium, where he will be chairing sessions at both symposiums. CODE 617: HYDROLOGICAL SCIENCES LABORATORY Ms. Debbie Belvedere (sponsor D. Toll) supports scientific collaboration and coordination for NASA’s global water and energy cycle research that answers to the emergence of cross-cutting water-cycle research initiatives brought forth by inter-agency and government-administrative science panels. Established in 2003, NASA’s Energy and Water-cycle Study (NEWS) aims to document and enable predictions of water and energy cycle consequences of Earth system variability and change. However, the broad objectives of energy and water cycling-related climate research extend well beyond the purview of any single agency or program, and call for the support of many activities that are matched to each agency’s respective roles and missions. To achieve the ultimate goal of credible global change predictions and applications across all significant scales, NASA seeks collaborations with other federal and international agencies, the scientific community-at-large and private industry. To these ends, NEWS working groups - Extremes, Evaporation & Latent Heating, Climate Shift and Clouds and Radiation - were created that identify integration needs and make the needed connections to partner and coordinate with water and energy cycle research and application activities at other organizations within NASA, nationally, and internationally. Ms. Belvedere and colleagues also continue to work on the next steps for a North American Water Program (NAWP). After a successful NEWS Science Team Meeting in May 2013, Ms. Belvedere along with Drs. Schiffer and Houser engaged 18 newly awarded projects into NEWS. This included mapping projects to science priorities, determining how best to measure the progress of NEWS, and defining working groups and leads. The Extremes working group is focused on understanding severe drought in the U.S. The 2012 drought may not have been predictable as based on current schemes employed for such purposes, but it may have been anticipatable due to knowledge of key precursors, such as favorable (remote) SST patterns, and reduced regional soil moisture and winter snow packs. Thus, they are examining the extent to which the 2012 drought could have been anticipated and to put recent severe droughts in perspective. The Climate Shift working group’s goal is to better understand changes in the global water cycle related to the “climate shift” which happened in approximately 1998. Questions to be researched: Is the shift real? How consistent are the data sets and reanalyses in documenting 50 | GESTAR Annual Report 2013 - 2014 the shift in various aspects and parameters of the large-scale water and energy cycles? Is there a consistency among the evidence? What data sets seem to be outliers and can we identify a physical basis for their “problem(s)” that could suggest directions for their improvement? To what extent is the cause of the change in Pacific Decadal Variability (PDV) or AMO related? The Clouds and Radiation working group is studying the relationships of clouds, precipitation, and the energy budget of the stratocumulustopped boundary layers in the subtropical high region of the South Pacific. The main goal is to provide a framework for NEWS members to work collaboratively on NEWS-related issues concerning clouds and radiation. The Evaporation and Latent Heating working group is focusing on the latent heating and moisture transport from over a region for the NEWS time period of 1998 – 2007, with the initial proposed region the Atlantic basin and European land area. The goals are to understand the moisture sources of the precipitation over the European land area, and how these are related to the Atlantic Basin, as well as to utilize NEWS data products to assess the mean seasonal flux across the regions boundaries and internally; inter-annual variability of the fluxes; statistical distribution of events, which would provide a foundation to an analysis of extremes and specific weather events, impact of surface variability, and atmospheric transport variability; and an analysis of trends in the transport over the time period. Ms. Belvedere is working on and has contributed to two major documents. The scientific framework for the Water and Energy Cycle Focus Area is outlined in the NASA Earth Science Enterprise Strategy document. It is one of six focus areas that define the scientific content of the NASA Earth Science Program, and includes both research and technology components. The NEWS research program is intended to yield significant advances and breakthroughs in hydrological cycle climate science. Progress in achieving its objectives is measured against its success in identifying gaps and making significant advances. Ms. Belvedere has been researching outstanding NEWS accomplishments, data products, and 25 pages to date of NEWS publications with number cited for each. The goal is to have the NEWS 10-Year Summary Document completed by the upcoming NEWS Science Team Meeting in May 2014, and to ultimately submit the results as a BAMS paper. Additionally, NASA HQ seeks publications annually that will support NASA’s contribution of scientific advancement against the following goal: demonstrate progress in quantifying the key reservoirs and fluxes in the global water cycle and in improving models of water cycle change and fresh water availability. Ms. Belvedere and Dr. Schiffer assisted the HQ Program Manager by gathering publications and outstanding highlights to prepare documentation required by the ESS to review and evaluate the ESD progress for FY13. Submitted in August 2013, the report included an overall summary, key accomplishments, description of high-impact research results that appear in peer-reviewed literature and major programmatic accomplishments. In September 2013, Ms. Belvedere planned and held another “Let’s Talk About Water” Event at NCEP that was followed by a robust discussion. This documentary is being shown in order to bring clarity and understanding to the water crisis and its solutions; facilitate conversation between experts and students; provide a forum for debate around water science and policy; promote water and earth science education; and, engage general citizenry in public policy and water solutions. ing in the Americas, including efforts for capacity building and user engagement within the U.S., and throughout Africa and Asia. Additionally, a medium-term priority involved advancing the role of Earth Observations in the Water-Energy-Food (WEF) Security nexus and assessing how NASA assets can help to address these issues, as well as how Earth Observations can provide indicators of different types, including those to monitor the implementation of Sustainable Development Goals (SDGs.) At the 2013 AGU Fall Meeting, Ms. Belvedere engaged in a productive discussion related to the NAWP, as a result of her abstract that was part of an AGU Town Hall Meeting. Motivation for a NAWP includes reliable hydroclimate predictions that are essential for assessing the availability and stresses on clean water supplies; also, understanding and predicting water cycle extremes in a changing climate has a direct application for preserving life, environment and economic assets. The challenge for NAWP is to provide skillful forecasts of extremes, weeks, seasons, years and even decades in advance, that are useful for water resource management. To be successful, the Steering Committee and founding members must place particular emphasis on seeking agency and community support for NAWP, through seminars and meetings with scientists and agency Program Managers. This fall, Ms. Belvedere will be attending the 7th International Scientific Conference on the Global Water and Energy cycle at the World Forum, the Hague, the Netherlands, as well as other NEWS meetings and the upcoming GEWEX Meeting. Founded by the U.S. and other major countries, the GEO has been working toward the goal of developing a Global Earth Observation System of Systems (GEOSS) for the past decade. The GEO Water Task currently involves well over 150 scientists and experts from more than 20 nations. Mr. Lawford serves as the Point of Contact for the Water Task and provided coordination for both international and US activities. He also chaired the Integrated Global Water Cycle Observations (IGWCO) Community of Practice (CoP). The CoP’s main effort was the preparation of a GEOSS Water Strategy that will help to guide decisions on water-related topics over the next decade. The initiative, launched by GEO and Committee on Earth Observation Satellites (CEOS), has been led generally by the IGWCO CoP and specifically by Mr. Lawford as the chair of the CoP’s Science Committee. During the past year, he organized and chaired many teleconference calls, responded to hundreds of emails related to this activity, continued to write and integrate materials into a new draft report, and continued to edit the report. The development and coordination of water resource applications and Water Cycle activities within Group on Earth Observations (GEO) and in the wider community is a broad-based activity that requires substantial coordination and nurturing both outside and within the U.S. A central role of this task involves maintaining the coordination, reporting and synergies needed to advance NASA data products and water activities both in international GEO and in US GEO. Mr. Richard Lawford (sponsor: D. Toll) is involved in developing applications of NASA data products in areas of water resources management and other related societal benefit areas and enhancing the coordination of GEO water cycle activities in areas of interest to NASA (e.g., drought, precipitation, soil moisture, groundwater, evapotranspiration, capacity building, user engagement, etc.). Over the past year, specific priorities included the following: advancing water cycle and applications topics that support NASA planned missions in precipitation, soil moisture, evapotranspiration, and in the longer term, groundwater, and water level measurements; supporting the development of the GEO infrastructure and coordination framework, particularly in the area of Water and in ways that enhance NASA opportunities to contribute to this framework; undertaking analysis of, and providing guidance on, the international context within which NASA water cycle efforts are carried out, identifying opportunities where NASA activities could be beneficial and could have a positive impact, and advising NASA and developing ways to address these opportunities; and, developing opportunities for training and capacity build- Community inputs were obtained through Town Hall meetings, science presentations and consultative seminars. During May 2013, Mr. Lawford organized and conducted a Town Hall meeting on the GEOSS Water Strategy at the AGU in the Americas meeting in Cancun, Mexico. Several experts from Latin America attended this event, and some new examples were produced for the GEOSS Water Strategy report. At this meeting, Mr. Lawford presented a paper on the GEOSS Water Strategy as well as a paper he co-authored with several NASA colleagues on the contributions of NASA to capacity building in the Americas. In June 2013, he participated in the GEO Work Planning Symposium in Geneva and attended the Societal Benefits Implementation Board meeting where he agreed to serve as the co-chair of the Board for the coming year. As part of the efforts to facilitate the coordination of GEO Capacity Building activities, he communicated with NASA and NOAA colleagues regarding opportunities. In July 2013, he held a seminar at NASA Goddard Space Flight Center on the GEOSS Water Strategy; from this seminar, several new contributions were made, most notably by Dr. Christa Peters Lidard. Other Goddard contributors to the report included Drs. Sushel Unninayar and George Huffman, and David Toll. He also presented seminars on the GEOSS Water Strategy that resulted in new inputs to the report in October 2013 at the Centre National d’Études Spatiales (CNES) in Toulouse, France and at the Deutsches Zentrum für Luft und Raumfahrt (DLR) in Bonn, Germany. GESTAR Annual Report 2013 - 2014 | 51 Work continued on the GEOSS Water Strategy report and Executive Summary until December 2013 when the Executive Summary was submitted to JAXA for printing. Copies of the Executive Summary were distributed at the GEO Summit in January 2014 in Geneva, Switzerland and via the mail. The penultimate draft of the report was also copied to CDs and distributed at the Summit. Mr. Lawford submitted the final GEOSS Water Strategy report to JAXA in January 2014; JAXA then printed approximately 300 hard copies and 1,000 CDs of the report to distribute to contributors and managers who may be able to act on the report’s recommendations. In preparation for the January 2014 GEO Summit in Geneva, Mr. Lawford assisted David Toll and Nancy Searby in organizing a NASA-led Side Event on Space and Technology for Water and presented a paper on Applications of satellites to Water Management, as well as a side event to announce the release of the GEOSS Water Strategy report. He chaired a panel discussion on the agency responses to the report, and also helped set up the Water Booth with JAXA colleagues, which involved obtaining at least five NASA videos, which were played in rotation at the booth, and displaying posters from U.S. colleagues. Mr. Lawford also provided substantial input to two videos being prepared for the GEO Summit, including one on a journey of discovery related to the water cycle (for the GEO Summit) and a second on capacity building in Asia and Africa (for the GEO Plenary). He chaired two sessions of the Societal Benefits Implementation Board, which oversees the individual SBA tasks. In late April/early May 2014, Mr. Lawford will attend the 2014 GEO Work Plan Symposium in Geneva, where he will give three presentations, co-chair two sessions, and chair Societal Benefit Implementation Board meetings before and after the Symposium. The United States is one of the founding members of GEO. In 2013, the U.S. took steps to strengthen its national program in water by establishing a GEO committee under the NSTC Committee of Environment, Natural Resources and Sustainability. As a result of this strengthened mandate, NASA has moved to strengthen the U.S. GEO Water Task. During fall 2013, Mr. Lawford helped to organize a preliminary U.S. GEO meeting and provided an overview of the connections between both the U.S. and the international GEO Water activities. He also helped to organize and chaired a Town Hall meeting on the U.S. GEO water program at the 2013 AGU Fall Meeting. Mr. Lawford provided input to presentations for an April 2014 U.S. GEO workshop, as well as input to a framework and outline for a U.S. GEO Water Strategy/initiative. Water, energy and food are interconnected in many ways. For example, food production uses 70% of the water that is consumed by human activities while approximately 33% of the world’s energy is consumed by farm operations, chemical fertilizers for crops, crop harvesting, and food transportation and processing. In order to support sustainability in water and energy, it is essential to understand and manage the connections of water and energy with the food sector. In May 2013, Mr. Lawford participated in 52 | GESTAR Annual Report 2013 - 2014 the Water in the Anthropocene conference in Bonn, Germany, where he chaired three sessions and gave presentations in four sessions, including a presentation on Earth Observations and the Water-Energy-Food Nexus, introductory and summary presentations for the Global Catchment Initiative of GWSP, and a multi-authored paper on NASA contributions to water security. In November 2013 he served as a member of a high-level panel on the Water-Energy-Food nexus at the Budapest Water conference (an event hosted by the President of Hungary). He prepared two articles for the December 2013 special issue of the COSUST journal, and contributed sections to two other articles. Mr. Lawford will be a co-editor for a proposed special issue of the Sustainability Science journal. He represented EO and WEF activities on the Global Water System Project SSC meeting in Bonn, Germany and provided an update at its meeting in May 2013. Based on discussions at the Water in the Anthropocene conference, Mr. Lawford worked with Dr. Cat Downy of the European Space Agency (ESA)/IGBP (International Geosphere-Biosphere Programme) and Lucie Pluschke of the Food and Agriculture Organization (FAO) to launch a workshop on Earth Observations and the Water-Energy-Food Security Nexus. The workshop was held March 25-27, 2014 at FAO, Rome, Italy. In preparation for this meeting, Mr. Lawford helped to set up a website for the conference, sent out invitations to GWSP contacts, developed a draft of the workshop agenda and prepared questions for the various breakout groups. At the workshop he made three presentations, chaired two summary sessions involving interactions between the breakout groups and developing a workshop summary overview. He also participated in post-workshop meetings; at present, work continues on the preparation of a workshop summary. Subsequently, in March 2014, Mr. Lawford was invited to develop a proposal on behalf of the Global Water System Project (GWSP) for Future Earth. The proposal involved expanding the role of Earth Observations in the water, energy and food sectors based on discussions at the EO in the WEF Security Nexus workshop held in Rome, and GWSP submitted the proposal to Future Earth in early April. If approved, the proposal will provide opportunities for NASA participation, as well as contributions from GEWEX, FAO, ESA and GEO, among others. Mr. Lawford contributed to planning the May 2014 GWSP-UNEP workshop on the WEF Nexus, where he will chair a special session on Earth Observations and the Nexus. In the coming year, he will work on developing the theme of Earth Observations linkages to the Water-Energy-Food Nexus and to the water aspects of the Sustainable Development Goals. This will involve the development of a plan for a workshop on Earth Observations and Indicators. NASA supplies a wide range of products for drought monitoring, many of which were available for use during the 2012 U.S. drought. Through the application of drought products, there was an opportunity to inventory and assess the drought, and Mr. Lawford and several NASA colleagues co-authored a paper titled “Using NASA Earth Observations to characterize the 2012 U.S. Drought” based on a preliminary analysis that was published in the GEWEX Newsletter. This past year, Mr. Lawford continued to collaborate with Dr. Andrea Hernandez (LSSU) on the analysis of the relationships between crop yields from the central U.S. and western Canada and drought indices derived from satellite data. Work on NASA application priorities including drought and evapotranspiration will continue, which will include developing analytical frameworks such as a framework for Earth Observations and water resources decision making in the Red River Basin. Also this past year, Mr. Lawford updated a proposal for a NASA Indicators workshop. This workshop would focus on ways in which NASA assets can be used more effectively in providing indicators to support policy makers. He also has held discussions within GEO on how satellite data and product development services could be mobilized in support of Sustainable Development. These discussions are targeted for the UN-Water post-2015 global goal for water and will be the subject of a presentation at the April 2014 GEO Work Plan Symposium. Dr. Cheng-Hsuan (Joseph) Lyu (sponsor: E. Kim) supports JPSS, including NPP/ATMS and VIIRS pre-launch testing and post-launch sensor calibration and validation and algorithm development, as well as subsequent JPSS/ATMS sensors testing, characterization and/or algorithm development. He requested, downloaded and processed ATMS RDR daily data and generated ATMS NEdT monthly performance trending reports, which were sent to the JPSS ATMS instrument manager and his sponsor Dr. Kim. Dr. Lyu supported the following meetings: NPP weekly tag-up team meetings, biweekly ATMS SDR telecons, J1 TVAC review meetings with the ATMS SDR team, the J1 ATMS Thermal Vacuum Testing briefings, and the ATMS Discrepancy Report Algorithm Team meetings. He used TRMM/TMI to demonstrate problematic issues related to the recent ATMS SDR code updates. He also completed the ATMS Lunar Intrusion mitigation reports, which were later presented in the April ATMS SDR review. Going forward, he will continue to coordinate with all ATMS SDR team members, including NOAA/ STAR, MITLL, Space Dynamics Lab, NGAS and Raytheon to support JPSS/NPP/ATMS calibration and validation activities. In spring 2014, Dr. Lyu went to NGES, in Azusa, LA, to support and monitor JPSS 1 ATMS TVAC testing. The focus was to monitor ATMS calibration and repeatability test. He helped to debug the problem and confirmed that NGES collected sufficient data to validate the sensor performance. He will be visiting NGES again in May and June 2014 to monitor J1 ATMS TVAC calibration testing. Dr. Robert Schiffer (sponsor: D. Toll) serves as the Principal Investigator for the NASA Grant covering the operation of the International GEWEX Project Office (IGPO). The IGPO facilitates and coordinates GEWEX research across GEWEX studies, activities, and products, oversees the implementation of recommendations given by the GEWEX Scientific Steering Group (SSG), and plays a central role in the outreach of GEWEX through its website, quarterly newsletter, and through the organization of science conferences and workshops. IGPO also provides an interface between GEWEX and other WCRP activities, as well as other global environmental science programs and the space sciences. Further, the Science and Technology Corporation (STC) provides directly or indirectly the support required to meet the obligations and responsibilities of IGPO and its Director. The Global Energy and Water EXchanges (GEWEX) Project of the World Climate Research Programme (WCRP) brings together a significant component of the world climate community in joint initiatives to advance understanding of the coupled hydrologic and atmospheric processes on a global scale and to apply global water cycle understanding, observations, and models to the problems of climate and water resources around the world. Scientists from over 45 countries participate in major GEWEX projects aimed at quantifying the hydrologic cycle and energy fluxes by means of global measurements of atmospheric and surface properties; modeling the global water cycle and its role in the climate system; developing the ability to predict variations of global and regional hydrologic processes and water resources and their response to environmental change; and fostering the development of observational techniques, as well as data management and assimilation systems. GEWEX activities involve understanding and modeling land-atmosphere coupling and cloud system processes, global data set development, water resource applications, and the effective use of Earth Observations in climate science. In fall 2013, STC provided the support required to meet the obligations and responsibilities of IGPO and its Director. This included providing support to the GEWEX SSG and its Chair and Vice-Chair; assisting with the coordination and implementation of the Second Phase of GEWEX and plans for the Third Phase (post-2013) through GEWEX Panels, Working Groups, and the SSG; coordinating the formation of new Working Groups, Panels, and related activities in areas of GEWEX requiring further support; reporting on and assisting others in reporting on GEWEX activities to international bodies and government agencies; providing direct support to WCRP on all aspects of GEWEX and its implementation; implementing an outreach program for GEWEX via various communication; representing GEWEX at scientific conferences and other international forums through scientific presentations and exhibitions; facilitating the development of cross-cutting issues and the linkages of GEWEX with other programs such as Future Earth (formerly ESSP, IGBP, IHDP and Diversitas) and the IPCC; preparing and publishing meeting reports and other documents relevant to GEWEX; managing travel requests from scientists to attend GEWEX meetings; reviewing plans from WCRP and other environmental programs, providing input to planning documents for WCRP and other programs, and responding to numerous requests for information about the GEWEX program and data sets; and representing WCRP in the International Global GESTAR Annual Report 2013 - 2014 | 53 Water Cycle Observations Community of Practice (IGWCO-COP) theme and Science Advisory Group through the provision of secretariat services and contributions to the GEO, where appropriate. In planning for GEWEX Phase III, IGPO incorporated comments received during the SSG meeting into the GEWEX Science Question 1 (Observations and Predictions of Precipitation) and GEWEX Science Question 2 (Global Water Resource Systems) reports. IGPO polled Panel members on their activities related to GSQ-3 (Monsoon and Extremes activities within GEWEX). The responses, which were summarized and distributed in a white paper, will be addressed by the WCRP Grand Challenge on Extremes. The Director of IGPO co-chairs the International Soil Moisture Working Group, and supports the ESA Water Cycle Multi-Mission Observation Strategy (WACMOS) as the Chair of the Advisory Board. He supports the European Union project Global Water Scarcity Information Service (GLOWASIS) as a scientific advisor and is a member of its Science Advisory Board. The Director of IGPO also serves on the Executive Board of the Science Committee for the Integrated Global Water Cycle Observations (IGWCO) Community of Practice (COP) of the GEO, and provides input to the Water Cycle Societal Benefit Area under GEO. IGPO coordinated two small focused workshops to address GEWEX planning for the WCRP Grand Challenges. A workshop on global water resource systems co-chaired by the GEWEX Hydroclimatology Panel (GHP) and the Global Land/Atmosphere System Study (GLASS) Panel was held in Saskatoon, Canada in June 2013. Another workshop on the Observations and Precipitation Grand Challenge, co-chaired by the GEWEX Data and Assessments Panel (GDAP) and the Global Atmospheric System Studies (GASS) Panel, was held in Ft. Collins, CO in late June 2013. As a part of this effort, IGPO sent out invitations, assisted in developing the agendas, and coordinated travel requests. IGPO worked with the GEWEX Panel chairs and SSG Chair to prepare the GEWEX presentation for the JSC meeting, which the Director of IGPO attended along with the GEWEX SSG Chair. IGPO organized, attended, and supported the 26th Session of the GEWEX SSG, held in late October 2013 at NCAR, in Boulder, CO. IGPO maintained the meeting website and assisted with travel requests. At this meeting, IGPO presented a status report of the GEWEX activities being coordinated by the office, prepared a list of recommendations and actions from the meeting, compiled the rapporteur reports and drafted the meeting report, which will eventually be published as a WCRP document. Key activities included reviewing results from recent workshops on the GEWEX Science Questions and developing an implementation strategy for advancing these topics. With IGPO assistance, the GEWEX Hydroclimatology Panel (GHP) led the advancement of the WCRP Grand Challenge and GEWEX Science Questions related to the WCRP Water Strategy. A meeting was organized that addressed the WCRP Global Grand Challenge on Past and Future Changes in Water and the GEWEX Science 54 | GESTAR Annual Report 2013 - 2014 Question on Global Water Resource Systems, and hosted by Dr. Howard Wheater at the University of Saskatchewan, Saskatoon, Canada, in early June 2013. IGPO tracked all funding requests and drafted a report that will form the basis for the Science and Implementation Plan for this Grand Challenge by highlighting knowledge gaps and specifying the steps to address them. Other work involved planning for GEWEX Phase III (Post- 2013). IGPO coordinated and participated in two workshops in June 2013 and subsequently prepared, distributed for comment, and finalized the reports and recommendations of these workshops that addressed GSQ-1 (Observations and Predictions of Precipitation) and GSQ-2 (Global Water Resource Systems). Additionally, IGPO coordinated a two-day science and implementation workshop held in mid-July 2013 in Reading, UK that focused on developing a draft plan for a GHP Regional Hydroclimate Project (RHP) related to the Hydrology of the Lake Victorian Basin (HyVic). Agenda highlights were sessions on issues and impacts of the hydrological cycle of the Lake Victoria Basin region associated with extremes (e.g., floods and droughts), the water and energy budget, and hydrological applications, as well as other topics relevant to capacity building and education. After this HyVic planning meeting, participants agreed that there was enough international interest to form a HyVic Regional Hydroclimate Project (RHP). IGPO supported the formation of a HyVic International Planning Committee (IPC); the first IPC meeting was held as a side event during the African Climate Conference 2013, held in mid-October 2013 in Arusha, Tanzania, where the IGPO Director presented a poster on the GEWEX Science Questions and African climate research. IGPO worked with the local organizer from the University of Rio de Janeiro for joint GDAP and GHP meetings held in Rio de Janeiro in early September 2013. These meetings included joint GHP/GDAP sessions, individual panel sessions, and a two-day meeting with local and regional scientists on topics of importance to society and climate services in Brazil. Members of GHP and GDAP examined issues related to the panel roles in GEWEX, as well as shared interests in data development and validation. IGPO is leading the planning for the 7th International GEWEX Scientific Conference on the Global Energy and Water Cycle and Associated Meetings, and chairing the Conference Local Organizing Committee, which is composed of representatives from Wageningen University, WCRP, NOAA, and IGPO. IGPO has finalized the program and conference themes in coordination with the conference co-chairs and GEWEX panel chairs, as well as the science committees and lodging arrangements. IGPO has developed a conference budget and sponsorship package; many national and international agencies have expressed interest in sponsoring the conference. In coordination with the Wageningen University LOC member, IGPO is investigating keynote speakers and pursuing agency and university funding for the Conference. The Conference sessions were finalized by the conveners in November and announced, along with a call for abstracts, in the GEWEX newsletter. IGPO placed calls for abstracts in the Bulletin of the American Me- teorological Society and the AGU newsletter, EOS. As a part of the planning for this Conference and future events, IGPO contacted the Young Hydrologic Society (YHS), a newly developed network for young scientists in the field of hydrology, regarding collaboration with GEWEX, including exchange of information (on internships, meetings, awards, activities, etc.), a mentorship program, and the involvement of early career scientists at international events and summer schools. IGPO hopes to engage the YHS members in supporting and organizing GEWEX workshops, having them report from workshops, and write scientific articles related to GEWEX. IGPO assisted with the preparation of the GHP annual report to the GEWEX SSG; prepared the report of the GHP Business meeting, and drafted a GEWEX Newsletter article summarizing the outcome of the meeting; presented a brief talk on the proposed HyVic RHP at the GEOSS Joint Asia-Africa Water Cycle Symposium; began action to coordinate rotation of membership of the GHP in accordance with Panel Terms of Reference and GEWEX standard practices. IGPO develops, publishes, and distributes GEWEX News, a quarterly published newsletter with a distribution of approximately 2,000 (past issues are available on the GEWEX website). The August issue announced the call for abstracts and provided descriptions of sessions for the 7th International Scientific Conference on the Global Water and Energy Cycle to be held July 14-17, 2014 at the World Forum in The Hague, The Netherlands. The issue also featured results from the GEWEX cloud assessment, and activities of GHP projects, such as BALTEX and HyVic, and a new crosscutting project on short timescale precipitation extremes. Periodically IGPO distributes a GEWEX electronic newsletter that includes recent news of interest to the GEWEX community that is time sensitive, including calls for papers and research and position announcements. IGPO hosts, maintains, and updates the GEWEX website, which provides recent GEWEX science results, overviews of the structure and organization of GEWEX and its projects, access to GEWEX reports and publications and GEWEX data sets, updates on recent and planned activities, and a calendar of project meetings and conferences. IGPO was involved in the modernization and update of the GEWEX logo design, which has been finalized. The GEWEX website is being revamped into a responsive design that is easy to read on tablets and cell phones. In addition, IGPO is developing a stand-alone website to handle the registration, collection of abstracts, and requests for travel funding for GEWEX conferences and meetings. As a member of the WCRP Communications Team, IGPO participates in periodic strategy teleconferences, reviews reports, and updates databases. WCRP sent the IGPO 800 copies of the hardbound book, “Climate Science for Serving Society: Research, Modeling and Prediction Priorities,” which were mailed to the U.S. and Canadian participants of the WCRP Open Science Conference held in October 2011. The book contains WCRP research priorities that emerged from the Conference. After the conference, IGPO added the presentations to the conference website. The Director of IGPO co-chaired the International Soil Moisture Working Group, one of the drivers in establishing the global soil moisture in-situ network, and supports the ESA Water Cycle Multi-Mission Observation Strategy as the Chair of the Advisory Board. He supports the European Union project GLOWASIS as a scientific advisor and as a member of its Science Advisory Board. As an organizing committee member of the ESA/EUMETSAT/ GEWEX/CEOS Satellite Soil Moisture Validation and Application Workshop, the Director of IGPO participated in the workshop held July 1-3, 2013 at ESRIN in Frascati, Italy. Furthermore, the IGPO Director serves on the Executive Board of the Science Committee for the IGWCO CoP of the GEO, and provides input to the Water Cycle Societal Benefit Area under GEO; serves on the Board of the Helmholz Alliance as a user group representative; and serves on the Board of the FP7 Project Earth2Observe Project. The Jet Propulsion Laboratory, GEWEX and CLIVAR co-sponsored a workshop on the use of GRACE data to monitor, simulate, and understand ongoing changes in the Earth’s hydrosphere and water cycle that was held in mid-July 2013 in Los Angeles, CA. Additionally, IGPO and the CLIVAR Project Office conduct monthly teleconferences to review and discuss the coordination of their collaborative activities. IGPO is supporting the development of a new CLIVAR/GEWEX task group on extreme weather and climate that was requested by the JSC. Over the past year, IGPO staff supported or attended approximately 15 meetings; at several, an IGPO staff member gave a presentation or talk. IGPO also is assisting the interim BSRN project manager in making arrangements for the next BSRN meeting, which is to be held at the Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR) in Bologna, Italy from May 26-30, 2014. Looking ahead, GEWEX summer sessions are being organized at Delft University of Technology from July 10-12, 2014 on water and radiation topics, and IGPO is assisting the organizers in finding sponsors and investigating transportation options for the students. Dr. Robert Schiffer (sponsor: D. Toll) works under another task wherein he provides general technical and managerial support and assistance to the Earth Science Division at NASA Headquarters, specifically GEWEX, the NASA Energy and Water Study (NEWS), and the North American Water Program (NAWP). For NEWS, he supported the planning of the May 2014 NEWS Science Team meeting, the oversight and coordination of NEWS Science Working Groups (Climate Shift, Energy Cycle, Clouds and Radiation, Drought and Flood Extremes), the responses to NASA HQ requests, including assistance in compiling the 2013 GPRA report, the organization of Workshops on Water Cycle Missions and the implementation of the peer review process for the current Water Cycle ROSES solicitation. Dr. Schiffer also assisted with coordinating the planning for the GESTAR Annual Report 2013 - 2014 | 55 the NAWP through development of documentation to be used for soliciting Federal Agency support. The objective of NAWP is to entrain, integrate and coordinate the vast array of interdisciplinary observational and prediction resources available to significantly advance skill in predicting as well as assessing and managing variability and changes in North American water resources, as an integral part of the global climate system. The mission is to advance measurement and prediction of North American energy and water variations, trends, and extremes, thereby providing scientific underpinnings of future climate services and water resource reliability. NAWP would exploit the vast North American observation networks to understand a wide variety of regional climates and enable science, technology and solution transferability across these regions. NAWP would build upon previous North American contributions to GEWEX, but will include the broader climate, carbon, ecology, and decision communities. As such, it will address more than just the physical Earth System and include human impacts and infrastructure; NAWP is expected to provide an integrating continental scale framework for both large-scale studies, and basin and field-scale projects. Mr. Thomas Stanley (sponsor: D. Kirschbaum) has been working on the development of a landslide susceptibility map and global landslide inventory in support of The Landslide Hazard Assessment and Forecasting System in Mesoamerica, “a straightforward, easily-interpreted set of landslide hazard assessment and forecasting products available in near-real time for SERVIR-Mesoamerica”. To compile this map and inventory, media reports from around the world were examined for information about landslides, specifically data such as location, time, casualties, size, and spatial uncertainty. This information is currently being developed into an interactive web database by Vightel Corporation. The first press coverage of this inventory can be found at: http://news.nationalgeographic.com/news/2014/04/140422surveying-american-landslides-interactive/. As mentioned in the National Geographic article, “The March 2014 landslide in Oso, Washington, called attention to the lack of a national system to monitor landslide data.” One component of a nearly real-time landslide model currently under development is TRMM precipitation data (to be replaced by GPM products in the future). Another is a landslide susceptibility map that represents relatively static risk factors. The first version of this map was completed in December 2013, and is currently being evaluated prior to the creation of a second version. Mr. Stanley’s upcoming work will include an evaluation of performance of a combined static/dynamic landslide model for Central America, and he plans to develop a first-draft susceptibility map for the Himalayan Region. He will also work on creating a global inventory of landslides that occur in 2014. Dr. Ally M. Toure (sponsor: M. Rodell) is involved in a project in which the primary goal is to develop an optimized approach for 56 | GESTAR Annual Report 2013 - 2014 merging satellite observations of the MODIS snow cover, the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) brightness temperature (Tb), and the GRACE terrestrial water storage change to generate spatially and temporally continuous global snow water equivalent fields at high resolutions. Over the past year, Dr. Toure implemented a coupling of the Community Land Model version 04 with the Microwave Emission Model of Layered Snowpacks (MEMLS) to simulate snow Tb. The coupling constituted the first step toward assimilating the Tb into CLM4 using the Data Assimilation Research Testbed (DART) developed at the NCAR. CLM4 snow model is a one-dimensional vertical multi-layer snow model which simulates processes such as snow accumulation, depletion, densification, metamorphism, and percolation and refreezing of water. The snow radiative transfer model, MEMLS, was used as an observational operator to predict Tb observations. The snow radiative transfer model used CLM4 snow model outputs including each layer of snow, temperature, thickness, density, liquid water content, and effective grain size. Snow Tbs were computed at frequencies corresponding to that of the AMSR-E (6.9 GHz, 10.7 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, and 89.0 GHz). The main contributions to the snow microwave emission measured by a spaceborne radiometer include: 1) upward soil microwave emission; 2) the contribution from the snowpack (emission/scattering); 3) the combined contribution from the canopy and the snowpack, 4) contributions from the forest canopy; 5) contributions from the atmosphere. MEMLS simulates the first two contributions. In order to account for the last three contributions, Dr. Toure incorporated atmosphere and vegetation microwave transmissivity models into the MEMLS to improve prediction of snow brightness temperature at the top of the atmosphere. The predicted Tbs were then assessed against AMSR-E Tb observations for the Northern Hemisphere during 2002-2010. The results showed that the predicted Tbs were unbiased in areas with low and moderate snow depth (e.g. Canadian, US Prairies and Eastern Siberia) and have high bias in areas with deep snowpack and dense forest cover, and complex topography (e.g. Quebec, Southern Russia, Rocky Mountain and Tibetan Plateau). Additionally, Dr. Toure worked with collaborators at NCAR to implement snow radiance assimilation into CLM4 through the NCAR DART. Tests of the implementation performed in some areas of Alaska with winter snow cover (October to April) have demonstrated promising results. Future plans include validating the assimilation results by comparing to the MODIS snow cover fraction (SCF), the Interactive Multisensor Snow and Ice Mapping System (IMS) snow cover, the Canadian Meteorological Center (CMC) daily snow analysis products, the cooperative stations (COOP), snowpack telemetry (SNOTEL) SWE observations, the European Space Agency (ESA) snow water equivalent product (GlobSnow), and snow depth observations derived from the Global Positioning System reflection data from the Plate Boundary Observatory water project (PBO H2O). output using various sources of independent observations including 1) the MODIS/Terra daily SCF, 2) the IMS snow cover data, 3) the Canadian Meteorological Centre (CMC) daily snow depth and snow water equivalent (SWE) estimates, 4) the snowpack telemetry (SNOTEL) SWE, and 5) the Cooperative Station snow depth. The results showed agreement between CLM4 and MODIS SCF observations and CLM4 with IMS snow cover product, especially in February when snow cover extent was at its maximum. Large discrepancies between the model and the observations were found in areas with deep snow and complex topography. The paper is currently being reviewed by co-authors. A paper by Dr. Toure presents the assessment CLM4 snow model In the coming months, the winners of the GPM Anime Charac- As Education Specialist for GPM, Ms. Kristen Weaver (sponsor: D. Kirschbaum) manages and supports multiple projects within the GPM Education/Public Outreach portfolio. She develops new Digital Learning Network events, and supports teacher workshops, reviews lesson plans for Master Teachers, develops and implements outreach activities, works with GPM Student Ambassadors, and participates in GPM E/PO-related conferences, presentations, and workshops. This past year, from a LEGO model of the Global Precipitation Measurement (GPM) Mission Core Observatory created by the Mountaineer Area Robotics program, Ms. Weaver developed an instruction booklet for building the model with embedded information about the technology and engineering behind the GPM satellite, links to videos, and educational activities. Ms. Weaver participated in several GPM-related outreach events, such as the education tables that displayed information about the science and technology of GPM at the Rockville Science Day on April 6th (4,000 attendees), at AwesomeCon (40,000 attendees), at Earth Day at Union Station; estimated at least several thousand), and at the USA Science and Engineering Festival (325,000 attendees). For this year’s Take Your Child to Work Day at Goddard, held April 24, 2014, the GPM E/PO team, in collaboration with the Goddard Office of Communication, hosted Goddard employees and their children at the Visitor Center. Activities included viewing a live downlink from the International Space Station, a presentation by GPM Applications Scientist Dr. Dalia Kirschbaum, and various hands-on activities. Attendance at the event was over 600 adults and children throughout the day. ter Challenge from 2013 will be used to create stories to teach students about the science, technology and applications of GPM and its data. Also, several teacher workshops are planned for the summer in which the GPM E/PO team will participate by providing programming, including for the Pennsylvania Multiregional Science and Mathematics Partnership at Goddard Space Flight Center in June, and in collaboration with the SMAP mission at Wallops Flight Facility in July. Finally, an article about the GPM Rain EnGAUGE program submitted to The Earth Scientist, the journal of the National Earth Science Teachers Association, should be appearing in the June issue. GESTAR Annual Report 2013 - 2014 | 57 CODE 618: BIOSPHERIC SCIENCES LABORATORY Dr. Assaf Anyamba (sponsor: C. Tucker) conducts research using time-series satellite vegetation index measurements from various satellite instruments; focuses on land surface response to interannual climate variability associated with El Niño/Southern Oscillation (ENSO), drought pattern analysis; and examines longterm trends and dynamics of vegetation patterns, development of long-term data records (LTDRs) of the biosphere and links between climate variability and vector-borne disease outbreaks. He leads and develops research analysis and applications development for global agricultural and drought monitoring for the USDA Foreign Agricultural Service (FAS), climate variability and vectorborne disease prediction mapping, and works in conjunction with the USDA Center for Medical, Agricultural & Veterinary Entomology (CMAVE) and the FDA. Dr. Anyamba and his team updated the Global Inventory Modeling and Mapping Studies (GIMMS) analysis of Sahelian vegetation dynamics and trends using the normalized difference vegetation index (NDVI; version 3g) 1981 to 2012 data set. They compared the annual NDIV3g and July-to-October growing season averages with the three rainfall data sets: the Africa Rainfall Climatology from 1983 to 2012, the Variability Analyses of Surface Climate Observations Version-1.1 from 1951 to 2000, and the Nicholson ground-station precipitation rainfall data from 1981 to 1994. They also utilized the Nicholson ground-station annual precipitation data to determine the reliability of the two continental precipitation data sets for specific locations and specific times, extrapolate these confirmed relationships over the Sahelian Zone from 1983 to 2012 with the Africa Rainfall Climatology, and then place these zonal findings within the 1951 to 2000 record of the Variability Analyses of Surface Climate Observations Version-1.1 precipitation data set. They confirmed that the extreme nature of the 1984–1985 Sahelian drought, a signature event that marked the minima during the 1980s desiccation period followed within ten years by near-maxima rainfall event in 1994 and positive departures is NDVI, marking the beginning of predominantly wetter conditions that have persisted to 2012. They also showed the NDVI3g data capture “effective” rainfall, the rainfall that is utilized by plants to grow, as compared to rainfall that evaporates or is runoff. Using the effective rainfall concept, they estimated that average effective rainfall for the entire Sahelian Zone for the 1984 extreme drought was 223 mm/yr as compared to 406 mm/ yr during the 1994 wet period. They concluded that NDVI3g data can used as a proxy for analyzing and interpreting decadal-scale land surface variability and trends over semi-arid lands. The results of this work were published in Remote Sensing as part of the Special Issue Monitoring Global Vegetation with AVHRR NDVI3g Data (1981-2011). Dr. Anyamba and his multidisciplinary team from USDA/ARS and USDA/FAS analyzed and documented significant worldwide weather anomalies that affected agriculture and vector-borne dis58 | GESTAR Annual Report 2013 - 2014 ACMAP research project through analysis of ozone and water vapor from 3D models and observations, and supported the ACCRI (Aviation Climate Change Research Initiative) research program (Dr. Henry Selkirk, PI), providing his expertise in the studies of modeling aviation climate impact. Dr. Damoah also was involved in NASA’s field flight measurement, Airborne Tropical TRopopause EXperiment (ATTREX), providing his valuable knowledge in meteorological and tracer transport forecasts in the flight planning. This past year, Dr. Damoah participated in the SEAC4RS field experiment as a member of the flight planning team. ease outbreaks during the 2010-2012 period. They used 20002012 vegetation index and land surface temperature data from NASA’s satellite-based MODIS to map the magnitude and extent of these anomalies for diverse regions including the continental United States, Russia, East Africa, Southern Africa, and Australia. They demonstrated that significant shifts in temperature and/or precipitation significant impacts on vegetation patterns with attendant consequences for agriculture and public health. Weather extremes resulted in excessive rainfall and flooding as well as severe drought, which caused ~10-80% variation in major agricultural commodity production (including wheat, corn, cotton, sorghum) and created exceptional conditions for extensive mosquito-borne disease outbreaks of dengue, Rift Valley fever, Murray Valley encephalitis, and West Nile fever. Analysis of MODIS data provided a standardized method for quantifying the extreme weather anomalies observed during this period. They concluded that assessments of land surface conditions from satellite-based systems such as MODIS can be a valuable tool in national, regional, and global weather impact determinations. Results from this work were published in PLOS One and featured on Simple Climate Blog. Dr. Richard Damoah worked under two tasks this past year (sponsors: C. Tucker and A. Douglass). He supports the FDA’s interagency agreement between scientists at FDA’s Center for Food Safety and Applied Nutrition (CSFAN) and NASA Goddard Space Flight Center on designing, building and operating a Geospatial Risk Assessment Model of environmental contamination of produce by enteric pathogens. The model was designed and tested over California, where ~80% of all produce consumed in the U.S. are grown. With his expertise in meteorology and climate, his primary role was to investigate the met/climatic variables associated with Pathogen activity. He also supports CHORI (Children’s Hospital and Research Center at Oakland); this effort is led by Dr. Anyamba is to investigate the burden of Chikungunya virus (CHIKV) and Dengue virus (DENV) transmission, infection and disease in Kenya. Dr. Damoah’s role is to extract, process and analyze NOAA’s ARC (African Rainfall Climatology) rainfall data at the study locations and make the data available to the project members. As part of CHORI he has constructed a system for the analysis of NOAA’s ARC rainfall data (see http://acdb-ext. gsfc.nasa.gov/People/Damoah/SEAC4RS/CHORI). Dr. Damoah presented his analysis of Relative Humidity and Pathogen detection to the FDA as part of the Geospatial Risk Assessment Model of environmental contamination of produce by enteric pathogens. In the coming year, Dr. Damoah will continue his analysis of RH and pathogen detection as part of the FDA’s Geospatial Risk Assessment Model of environmental contamination by pathogens. He will also update the system he constructed for the analysis of NOAA’s ARC rainfall data as part of CHORI, and together with Dr. Anyamba (PI) he will travel to the field in Kenya in August 2014. For his other task, which ended mid-year, he supported the In early 2014, Dr. Damoah took a teaching position at Morgan State University. In addition, he has helped Morgan State University purchase a weather station to aid in a meteorology course he has developed for fall 2014. Figure: Time-longitude section of monthly NDVI from July 1981 to December 2012 averaged between 10 deg. N to 20 deg. N from 18 deg. W to 40 deg. E. (A) monthly evolution of NDVI and (B) the corresponding monthly NDVI z-scores showing dry conditions in the 1980s and predominantly greener than normal conditions from 1994 to 2012. (Credit: A. Anyamba) Mr. Thomas Eck (sponsor: B. Holben) investigates the optical properties of atmospheric aerosols within AERONET as they relate to being applied to studies of the effects of aerosols on the atmospheric radiation balance and climate, and for the validation of satellite retrievals of aerosol properties. His work centers on analyzing measurements made by automatic sun-sky scanning radiometers that are globally distributed as a part of the NASA-managed Aerosol Robotic Network (AERONET). Groundbased remote sensing retrievals of aerosol optical properties are analyzed to better understand the dynamics of aerosol properties as a function of source region, transport, aging processes, and interaction with clouds. His work over the past year has resulted in several papers in various stages of publication (at the time of this report, two submitted, two in review, and six published), as well as his participation GESTAR Annual Report 2013 - 2014 | 59 as a co-convenor at a conference session at the 2013 AGU Fall Meeting, plus three related presentations. Upcoming work involves Mr. Eck’s participation in the multi-investigator DISCOVER-AQ field campaign in summer 2014. He will perform Cimel instrument maintenance and troubleshooting on multiple AERONET sites within the AERONET Distributed Regional Aerosol Gridded Observation (DRAGON) network in the greater Denver-Boulder-Colorado Springs region during the aircraft flight interval of this field campaign. He also will work on analyzing the measured Aerosol Optical Depth and retrieved size distributions associated with aerosol-cloud interactions using AERONET data acquired during the DRAGON-Korea, DRAGON-Japan and DRAGON-California field campaigns in spring 2012 and winter 2013. A journal paper related to this analysis will be prepared. For one task, Dr. Hank Margolis (sponsor: R. Nelson) works toward developing an analytic and statistical framework for estimating the aboveground forest biomass of different regions of North America using a combination of ground plots, airborne lidar, and spaceborne lidar. As Chief Scientist, he has completed the AMIGA-Mexico Airborne Campaign, which involved concluding the airborne G-LiHT data acquisitions and returning equipment and data. The next steps involved transferring the data and setting up a data archive for the AMIGA-Mexico G-LiHT data. He worked on data processing and verification, and wrote data documentation so that his collaborators in Mexico could access the data. He presented a summary on this data collection and worked with Mexican scientists on data acquisition, and attended a workshop organized by the U.S. Forest Service to bring together Mexican and U.S. scientists working on forest lidar. Dr. Margolis will continue his analysis of AMIGA-Mexico data for ecological studies. Other work involves compiling results and developing figures and tables for reporting the results on analyzing the aboveground forest carbon content of the North American boreal forest using airborne lidar and ICESat GLAS sampling. A related manuscript is in progress. For this second task, Dr. Hank Margolis (sponsor: B. Cook) assists with the development of biomass estimates from lidar and passive optical and thermal data for selected study sites using the G-LiHT sensor. Work has involved debugging and processing G-LiHT data for extracting forest height and biomass. He reviewed data from G-LiHT airborne campaigns, and refined and edited operator instructions for G-LiHT operation. He also worked on calculating biomass at the plot level for intensive study sites. Dr. Margolis began initial discussions and literature review for developing a REDD (Reduced Emissions from Deforestation and forest Degradation)-relevant proposal for using G-LiHT to conduct model-assisted lidar inventories in tropical forests; however, due to instrument availability issues, work on this proposal is on hold. Dr. Tian Yao (sponsor: E. Middleton) is working on improving and validating land surface models CLM4.0 and CLM4.5. Her focus is 60 | GESTAR Annual Report 2013 - 2014 on simulating and evaluating photosynthesis outputs at selected flux tower sites, in order to improve the model and evaluate input data. Since she began work with GESTAR, gross primary production (GPP) from the new MODIS product fAPARchl has been simulated by both models CLM4.0 and CLM4.5 in selected flux tower sites over cropland from 2001 to 2006. For each simulation, the results were compared with default CLM default GPP, MODIS LAI-derived GPP and flux tower-measured GPP. Future work will involve conifer forest and other deciduous forest flux tower sites to evaluate GPP simulations. Dr. Yao is preparing a related poster presentation for an upcoming AMS meeting. Dr. Qingyuan Zhang (sponsor: E. Middleton) has been leading the NASA-funded projects for the retrieval of fraction of photosynthetically active radiation absorbed by chlorophyll through canopies (fAPARchl), which is critical to estimating vegetation gross primary production (GPP), an important parameter of global carbon cycle studies and climate change studies. Dr. Zhang has been supporting and will continue to support the two NASA hyperspectral satellite missions: the ongoing Earth Observing One (EO-1) satellite mission and the future Hyperspectral Infrared Imaging (HyspIRI) satellite mission. Dr. Zhang’s research has resulted in several publications this past year. One paper demonstrates that coniferous needleleaf and deciduous broad-leaf forests change chemical compositions along seasons, which results in variations of fAPARfoliage, fAPARchl and fAPARnon-chl. This paper, published in IEEE JSTAR, was the first publication to address such findings. His other papers explored the usefulness of integrating SIF and PRI for crop GPP estimation, reported the impact of light use efficiency and fPAR parameterization on GPP modeling, and provided an analysis of the impacts of MODIS footprint and vegetation BRDF characteristics on GPP estimation. Dr. Zhang will be leading work on two proposals awarded by NASA. that (a) there is a persistent source of energetic calcium located in the dawn equatorial region, (b) there is a seasonal dependence in the calcium source rate, and (c) there are no obvious year-toyear variations in the near-surface dayside calcium exosphere. Although the precise mechanism responsible for ejecting the calcium has not been determined yet, the most likely process is the dissociation of Ca-bearing molecules produced in micrometeoroid impact plumes to form energetic, escaping calcium atoms. CODE 699: PLANETARY ENVIRONMENTS LABORATORY Dr. Charles Malespin (sponsor: P. Mahaffy) works on the development and testing of experimental procedures for the Sample Analysis at Mars (SAM) instrument suite. He is the lead testbed operator for the SAM testbed at GSFC. He is also part of the MSL Science and Tactical team and serves as the SAM strategic science lead. The Mars Science Laboratory (MSL) was launched in November 2011 and the Curiosity rover landed in Gale Crater, Mars on August 6, 2012. The SAM instrument measured the first in situ radiometric and exposure age dating on another planetary body. This experiment was developed, tested, and analyzed by Dr. Malespin and team from January-October 2013. The results were peer reviewed and published in the journal Science with Dr. Malespin as second author. The results are considered one of the highlights of the Curiosity mission to date and were a major accomplishment for SAM. Additionally, Dr. Malespin and others were recognized with NASA awards for their work on SAM and on the Curiosity mission. SAM completed its first combustion experiment on a previously cached Cumberland mudstone sample. The experiment was developed and tested by Dr. Malespin at NASA Goddard before its CODE 695: PLANETARY MAGNETOSPHERES LABORATORY Dr. Matthew Burger (sponsor: R. Killen) has been modeling data using a numerical Monte Carlo model to understand the seasonal and sporadic variations in the Ca exosphere of Mercury. The MESSENGER spacecraft has been in orbit around Mercury since March 2011. The UVVS component of the MASCS instrument makes daily observations of the sodium, calcium, and magnesium components of the exosphere. The Ca component has shown a persistent source located in the dawn equatorial region. The Mercury Atmospheric and Surface Composition Spectrometer on the MESSENGER spacecraft has observed calcium emission in Mercury’s exosphere on a near-daily basis since March 2011. During MESSENGER’s primary and first extended missions (March 2011 – March 2013), the dayside calcium exosphere was measured over eight Mercury years. These data have been simulated with a Monte Carlo model of exospheric source processes to show Credit: Matthew Burger execution on Mars, marking another successful first-time event for SAM. Curiosity is about to begin a new science campaign at a new site named “Kimberley”, which will be the third drill location in the mission. The drilled samples will be delivered to SAM and analyzed using new techniques which Dr. Malespin helped develop and test. The Curiosity rover completed one Earth year on Mars, August 5, 2013, a major milestone for the mission and half of the nominal prime mission. In celebration, Curiosity ‘sang’ “Happy Birthday” to itself using the SAM shaker motors. This script was developed and tested on the SAM testbed at NASA Goddard, where Dr. Malespin provided testbed operations. In August 2014, Curiosity will have completed two Earth years on Mars. This milestone will complete the nominal mission, with an extended mission taking the rover to the base of Mt. Sharp. As product development lead of the MEMS pirani pressure sensor of the MOMA instrument for the ExoMars 2018 rover, Dr. Adrian Southard (sponsor: S. Getty) is responsible for the operation, calibration, and integration of a fast-responding MEMS pirani pressure sensor for flight. This entails delivery of two calibrated gauges to each of the following systems: the engineering test unit, the MOMA test bed, QSM, and flight. Dr. Southard demonstrated that a MEMS pirani sensor selected for pressure measurement in the Mars Organic Molecule Analyzer (MOMA) instrument (part of the ESA-led Exomars rover mission) would not respond fast enough to meet the requirements of the mission. He developed a physics-based algorithm to speed up pressure prediction and compensate for ambient temperature changes in the pressure prediction. The algorithm required a series of calibrations. He performed experiments to characterize the sensor’s susceptibility to electromagnetic interference, its lifetime, and its sensitivity to gas composition and ambient temperature, and developed scripts to analyze sensor data; this was used to procure equipment for improved calibration precision. To assist with such efforts, he wrote an internal proposal to hire an assistant, Tomoko Adachi, to the MOMA team. He continues to work closely with Mrs. Adachi to calibrate gauges. Since the electronics used for the sensor’s calibration are not used in flight, Dr. Southard has worked closely with an electrical engineer, Gary Brown, to ensure that the gauge’s control circuit can resolve the gauge’s response without introducing instability or much additional noise to the signals of interest and that the circuit can accommodate variations of the signal with ambient temperature. Dr. Southard argued for and was granted changes in the GESTAR Annual Report 2013 - 2014 | 61 DELIVERING the MESSAGE circuit to reduce risk to the mission and improve accuracy of pressure prediction. He determined that calibration of the circuit was necessary as well as how this calibration should be done. Despite changing requirements for the pressure sensor from the start of work to a few months before delivery, his team was able to meet the latest requirements using the control circuit, although additional testing post-integration of this circuit to other electronics boards needs to be completed. Final pressure prediction requirements include pressure predictions under conditions of varying ambient temperature and pressure changes from 50 mtorr to 0.1 mtorr in less than 1.5 seconds using a repurposed commercial gauge the size of a transistor can. This also must be performed with an error of less than 0.1 mtorr in the 0.1 to 1 mtorr regime. In addition to his work on the pirani sensor, Dr. Southard also used a SIMION simulation to determine the electric fields within the MOMA mass spectrometer to support efforts at reducing arc discharge. He found that the results concerning field strengths within the mass spectrometer need further examination. He also used a SIMION simulation to determine whether magnetic fields induced by heater wires in the MOMA mass spectrometer would be a concern. Dr. Southard also supports modeling and testing of the OASIS instrument, a liquid chromatograph-mass spectrometer prototype for future planetary science missions. He has supported tests of electrospray using the Organics Analyzer for Sampling Icy Surfaces (OASIS) microchips and modeling as a part of the OASIS project. His work in the past year has focused on modeling of electric fields around the OASIS microchip, vacuum system design and testing, and assisting with electrospray testing on commercial and home-built systems. He attended and presented on a short course in liquid chromatography mass spectrometry during an annual conference and wrote a paper on the efforts of the OASIS team, which he presented at a national conference. As a Co-I of the OASIS project, he will be modeling the integration of the OASIS microchip with a home-built mass spectrometer and will be designing the interface. The website for GSFC’s Scientific Visualization Studio (Code 606.4, sponsor H. Mitchell), http://svs.gsfc.nasa.gov/, has undergone many improvements to its design over the past year, primarily due to the efforts of Katie Lewis. The site has improved accessibility to its searchable database, highlights its most popular visualizations, and showcases work by its partners: the Conceptual Image Lab, Goddard Media Studios, and Scientific Hyperwall Presentations. In fact, the hyperwall presentations are discussed at length in the Global Science & Technology (GST) section of this section, as well as in the following E/PO section. Codes 130 (Office of Communications) and 160 (Office of Education) share similar goals: to engage and inform the public in and on NASA Goddard’s missions, events, and hands-on and virtual activities. GESTAR’s team works diligently to meet these goals, collaborating on images, animations and films as well as stories, interviews and interactive educational tools. Image credit: J. Beck CODE 130 (Sponsor: W. Sisler) In addition to his field support with Operation IceBridge, this past year Jefferson Beck worked with the SVS to produce, script, and narrate three major data visualizations that made extensive use of IceBridge data. They included a complex four-minute piece showing a decade of changes in the Greenland Ice sheet, an animation of a new map of Antarctic bedrock, which was picked up by several major media outlets and received more than 1,000,000 hits on YouTube, and a piece on Greenland’s newlydiscovered “Mega Canyon” hidden below the ice sheet, which likewise garnered substantial media attention including CNN, the BBC, National Geographic, and NPR, and was viewed more than 1.2 million times. While outreach specialists were not approved for travel to Greenland for an early part of last year, Jefferson was still able to utilize media captured by field personnel, both throughout the campaign and even into the summer, including an evocative highlight reel of scenery from the forward camera of the aircraft, which was picked up by several media outlets, received more than 235,000 views on YouTube – and as he later learned while deployed in Antarctica – moved at least one seasoned researcher to tears. Following up on that more impressionistic success, he then produced a version 62 | GESTAR Annual Report 2013 - 2014 of this video focused just on sea ice that featured researcher commentary to increase scientific content. This video has received more than 16,000 views, a surprising number for a video almost 10 minutes in length. He also produced a video that, for the first time, highlighted the impact of the Land, Vegetation and Ice Sensor (LVIS) laser altimeter instrument to IceBridge. Rather than travel to Greenland in spring 2014, Jefferson helped to choose a producer to go in his place, and provided substantial pre-deployment support as well as mid-deployment media management. In the fall of 2013, Jefferson traveled with OIB to chronicle not only the Antarctic campaign from the air, but also the mission’s first-ever landing on the sea ice runway at McMurdo Station. He has released one video and several highlight reels from that mission – one which was featured on slate.com – and has more videos in development. He also supported a Google Hangout from McMurdo Station. Additionally, Jefferson helped guide a visualization on ocean currents beneath the Pine Island Glacier in Antarctica and supported a popular satellite media tour focused on Arctic sea ice. He participated in the selection of the supporting images for that media tour and released a YouTube version to amplify the message to other audiences. For the second year in a row, Jefferson created a video of some GESTAR Annual Report 2013 - 2014 | 63 of the Magnetospheric Multiscale Mission (MMS) spacecraft, as well as a mission animation showing the multiple satellite formation as they orbit to measure the earth’s magnetosphere. Plant Fluorescence. Image credit: T. Chase of the best and most important Earth views and data visualizations from space. This year, he coordinated the release with the agency-wide “Earth Right Now” campaign and the video has received a positive response, including coverage on news outlets from Arizona to Great Britain to India and garnered more than 300,000 hits on YouTube. In the coming year, Jefferson will revisit his footage trove from his deployment to McMurdo Field Station with Operation IceBridge and produce a series of retrospective videos. Working with Goddard science writers and researchers, he is also currently developing a major campaign highlighting four decades of Arctic sea ice observations. He will also continue to support the Earth Right Now campaign, specifically with a video focused on the history of climate observations. Along with producer Daniel Gallagher, Tyler Chase created a pair of animations showing the Touch and Go Surface Acquisition Mechanism (TAGSAM), the main instrument on the OSIRIS spacecraft mission. Its goal is to collect material from an asteroid and return it to Earth for analysis. Tyler’s animations illustrate how the collection mechanism operates. Working closely with producer Kayvon Sharghi, Tyler produced a number of animations to show the results of research by scientist Joanna Joiner and visualizer Gregory Shirah in the area of plant fluorescence. One of the measurable results of photosynthesis is the release of fluorescent light, which is detected by the METOPS satellite mission. Tyler’s products include animations of trees and the Earth, as well as detailed cellular-level displays of the mechanisms by which this fluorescence is produced. Illustrating the relationship between changes in temperature and cloud cover, Tyler created a pair of Hadley Cell animations to be used in talks by JPL scientists. The animations compare the height and thickness of cloud covers across latitudes as well as the associated changes in wind velocity. Working with the SVS at Goddard, Tyler created an updated model 64 | GESTAR Annual Report 2013 - 2014 Genna Duberstein is the Lead Multimedia Producer for Heliophysics. This past year, Genna produced a video on the story of magnetic reconnection. By combining the Solar Dynamics Observatory (SDO) and RHESSI data, scientists were able to confirm previous models and theories of magnetic reconnection, and reveal new, three-dimensional aspects of the process. This video was listed on Buzzfeed as one of “25 Things Way More Exciting than the Royal Baby”, and WIRED named a graphic from the video “Space Photo of the Day”. The Best of Goddard Film Festival has been an internal GSFC tradition for the past five years. The film festival serves as a dedicated space to celebrate not only the great scientific progress at GSFC, but also the creative achievements of its Office of Communications. For this event, Genna produces and provides graphic design, motion graphics, advertising, and editing support. The mid-January 2014 showing boasted the highest attendance in the festival’s history. A mid-level flare, an M6.5, erupted from the sun on April 2, 2014, peaking at 10:05 a.m. EDT. Genna produced a video with footage from NASA’s SDO, showing the flare in a blend of two wavelengths of extreme ultraviolet light: 171 Angstroms and 304 Angstroms, colorized in yellow and red, respectively. “Graceful Eruption” was broadcast on the NBC evening news, shown on sites like Weather. com, The Washington Post, Yahoo News, MSNBC, L.A. Times, Mashable, and Christian Science Monitor. The SDO sees the sun in different wavelengths, each represented by a distinct color. After editing work from data visualizer Tom Bridgman, Genna produced “Jewel Box Sun,” a video that shows one data set from all of the wavelengths. The video was featured by many notable websites, including TIME, Gizmodo, BoingBoing, and ABCNews.com. NASA’s Interstellar Boundary Explorer (IBEX) recently mapped the boundaries of the solar system’s tail, called the heliotail. The finding was announced in a Google+ Hangout. Genna created a web short, an SVS page, and supporting visuals for the Google+ Hangout. As of September 2013, the video had over 400,000 hits on the NASAexplorer YouTube channel. The video was also picked up by many websites, including CNN, Fox News, Gizmodo, Discovery, and ABC News’ Good Morning America. Video productions for Genna include: “3 Days in 1 Minute: Stacking the MMS Spacecraft”, “NASA’s IRIS Spots Its Largest Solar Flare”, “Tracking Energy Through Space – ARTEMIS Reconnection Fronts”, “IRIS First Light” (web short, press conference), “MMS Engineering Challenges”, “How to Cook a Comet”, “X Marks the Spot: Seeing Reconnection”, “Plasmaspheric Plume”, “Jewel Box Sun”, “Graceful Eruption”, “The Sun Reverses its Poles”, “IBEX Heliotail”, “IRIS Mission Trailer”, “IRIS Science Overview”, “IRIS Launch – L-14, L-1 Press Briefings”. In the coming year, she will be involved with the SDO installation slated to open at the Goddard Visitor GPM, a NASA/JAXA mission. Image Credit: R. Fitzgibbons Center, as well as two separate videos that explain reconnection, one for educators and another for the general for Ryan, as the main core of the GPM team was in Japan for the public. She also will be involved with launch. Consequently, he reached out to speakers from NASA many videos related to MMS Products, such as Mission Overview, HQ, Wallops, and at Goddard to provide an engaging program. Science Overview, the trailer, and narration of the orbit. Additionally, a slip in the launch schedule required Ryan to fill an additional 30 minutes with content late in the planning process. Ryan Fitzgibbons supports the Global Precipitation MeasureThe launch broadcast was seen as a success by the GPM project ment (GPM) mission in all multimedia needs, including the docuscientists and the GPM managers, as well as Headquarters promentation of mission milestones, production of web videos and gram managers. The entire program is available to download at live press events, and support for the Education/Public Outreach http://svs.gsfc.nasa.gov/goto?11496. (E/PO) programs. This last year marked a very large ramp-up to the launch of the Global Precipitation Measurement (GPM) Core Ryan produced two live press briefings at the L-30 mark for GPM. Observatory mission for Ryan. He took over producing duties for One briefing focused on the science objectives of the mission, the mission in late 2011, and while he steadily produced core while the second focused on the mission and project objectives. media elements throughout 2012 and into 2013, the workload He faced major challenges in preparing visuals for six managers increased substantially from the summer of 2013 until launch in and scientists from NASA Headquarters, Goddard, and the Japan February 2014. During the summer and early fall of 2013, Ryan Aerospace Exploration Agency (JAXA) for the live broadcast. While steadily documented the final stages of integration and testing these press briefings are typically held at NASA HQ, due to renovaof the GPM Core Observatory. During this time, Ryan produced tions at HQ, Ryan had to produce the events from the Goddard TV six full web shorts, three video file packages, a series of engineer studio. profiles called “Meet the Team”, a first light visualization, and two live broadcast events. Ryan produced a narrated video version of a GPM/GMI first light data visualization “GPM’s Stormy New View”. This represented Ryan produced a 90-minute NASA TV live broadcast event leading the first public view of the radiometer data produced by GPM as up to the launch of GPM from Tanegashima Space Center, Japan, it passed over a cyclone in the Northwest Pacific Ocean. Also, in on February 27, 2014. The program featured expert commentary support of the E/PO and Public Affairs for GPM, Ryan produced from scientists live in the studio, as well as in pre-recorded video several web shorts (searchable on the SVS site): Meet the Team interviews, live Q&A from social media outlets, and a live feed of series; GPM’s Journey to Japan; Engineering the Next Generation the launch site in Japan. Ryan oversaw about 20 other producers, Observations of Rain and Snow; Anatomy of a Raindrop; Zebra editors, engineers and production assistants to pull off the live Crossing; Too Much, Too Little; and How to Assemble the GPM event. The international aspect of the launch proved challenging Paper Model. GESTAR Annual Report 2013 - 2014 | 65 Ryan will continue to support GPM in its next chapter of post-launch data gathering. Upcoming projects include a “second light” visualization and accompanying web short, which will focus on the GPM Constellation and unified data product that combines both the DPR and GMI. Ryan will also produce a series of short educational web shorts that build off the themes presented in the GPM-related Science on a Sphere film “Water Falls”. Outside of work on GPM, he will begin providing production support for the HS3 mission. He will produce a short series of web videos that focus on the instruments onboard the unmanned aircraft and the answers they may provide for hurricane science questions. GPM’s Core Observatory On February 27, 2014, the Global Precipitation Measurement (GPM) Core Observatory was launched from Tanegashima Space Center, Japan. This GPM satellite carries a radar/radiometer system that measures precipitation from around the globe. The effects of precipitation are widespread, affecting world health and agriculture. This data will improve the understanding of the Earth’s water and energy cycle, leading to improved forecasting of and preparation for extreme weather events, such as floods, droughts, and landslides, as well as the water cycle’s relationship to climate change. The GPM Core Observatory carries onboard two key instruments, a Dual-frequency Precipitation Radar (DPR) and a multi-channel GMP Microwave Imager (GMI). The DPR consists of the Ka- and Ku-band precipitation radars, which, when overlapping these bands, provides information on particle drop size distributions. The DPR also provides measurements that complement cloud and aerosol observations. The GMI is a multi-channel microwave radiometer with 13 channels that range in frequency; these frequencies retrieve heavy, moderate and light precipitation, with the polarization difference at each channel indicating the optical thickness and water content. The GMI radiometer’s swath covers 550 miles. Image from “GPM/GMI First Light”, a visualization created from GPM’s first collection of data over an extra-tropical cyclone off the east coast of Japan on March 10th, eleven days after the GPM Core Observatory launch date. The GMI’s 13 bands captured the range of brightness temperature data, and the data then collapses into rain rates. Red areas indicate heavy rainfall, while yellow and blue indicate less intense rainfall. Blue areas in upper left indicate falling snow. (Credit: Alex Kekesi) 66 | GESTAR Annual Report 2013 - 2014 As a multimedia producer with GodTitan’s atmosphere. Image Credit: D. Gallagher dard Television, Daniel Gallagher produces and edits videos that inform the public about missions and scientific research being conducted at Goddard For the MAVEN mission, Dan produced and edited a three-andSpace Flight Center. As the lead video producer for the Planetary a-half-minute instrument profile video titled “Studying the Solar Department at GSFC, Daniel provides video support for the Lunar Wind on Mars”, in which Robert Lin, the late director of the Space Reconnaissance Orbiter, MAVEN, and OSIRIS-REx missions, as Sciences Laboratory at the University of California, Berkeley, diswell as Goddard-related research. Dan’s work supports Goddard cusses how NASA’s MAVEN spacecraft will study the interaction of Television’s mission to bring NASA science to the public in an entertaining and informative manner. This past year, NASA celebrat- the Martian atmosphere with the solar wind. MAVEN’s findings will reveal how Mars lost its early atmosphere, turning it from a warm, ed the 45th anniversary of “Earthrise”. Dan produced and edited wet planet into the cold, dry one that we see today. The video was a seven-minute video about the first “Earthrise,” witnessed by the released on March 5, 2014 on nasa.gov, NASA’s MAVEN website, Apollo 8 crew on December 24, 1968. Historian Andrew Chaikin NASA Explorer (YouTube), and the Laboratory for Atmospheric and wrote and narrated the video, which features the voices of the Space Physics MAVEN website. To date, the video has received Apollo 8 crew captured by the onboard tape recorder and new views of the Earthrise from inside the CSM, created by SVS visual- over 82,000 views on NASA Explorer. In the coming year, Dan will be working with animators and visualizers to create up to 13 core izer Ernie Wright using high-resolution terrain data from LRO. The visuals for the MAVEN mission from spring 2014 to spring 2015, video was released on December 20, 2013 on NASA Explorer (YouTube), nasa.gov, and the SVS, and has received over 1 million depicting key moments such as Post-Launch Deployment, Mars views to date on NASA Explorer. The video has also been reposted Orbit Insertion, encounter with Comet Siding Spring, and deployment of science instruments. These core visuals will be used to TIME, The Weather Channel, Gizmodo, and Space.com. in MAVEN web videos, press briefings, and live presentations throughout the duration of the mission. Dan produced, edited, and narrated a three-minute web video about studying the atmospheres of extrasolar planets, or “exoIn September 2013, Dan produced and edited a four-minute video planets”. The video was produced to accompany a paper by GSFC about propylene in the atmosphere of Titan, which was recently scientist Avi Mandell in the Astrophysical Journal. The video indiscovered by Goddard scientist Conor Nixon. Dan created several cludes several new visuals explaining spectroscopy, and it shows new visuals for the video, including animations of spectroscopy the transit depth curves of multiple exoplanets, all formatted data from Cassini’s CIRS instrument. He also worked with Conspecifically for the video by Dan. The finished product was posted ceptual Image Lab animator Chris Meaney to create new animaon December 3, 2013 to NASA Explorer (YouTube), nasa.gov, and tions of organic chemistry and polypropylene formation. Posted the SVS, and has received over 200,000 views to date on NASA to NASA.gov, the Science Visualization Studio site, and NASA Explorer. GESTAR Annual Report 2013 - 2014 | 67 Explorer (YouTube) on 09/30/13, this video has been reposted by several news outlets, including NBC News, the LA Times, SPACE. com, CNET, Science World Reports, and Computerworld. To date the video has received over 91,000 views on NASA Explorer. In late May, a new meteor shower will be visible from North America over Memorial Day weekend, and Dan will provide support for a television live shot, helping to create and organize visuals. The live shot will be broadcast from the Goddard TV studio, and is intended to support the OSIRIS-REx mission and to educate the public about comets, asteroids, and meteors. Also related to OSIRIS-Rex, Dan will work with CI Lab’s animation staff, Goddard TV staff, and members of the mission to finish and release Bennu’s Journey, a signature animation about the formation of the solar system. Robert Garner led the effort within Goddard’s Office of Communications web team to transition nasa.gov from the 10-year-old eTouch content management system to a more dynamic, Drupalbased system. Despite a compressed time schedule, frequent system problems and minimal training, Goddard’s transition was seamless to end-users. He also provided guidance and support to CMS teams elsewhere at Goddard, at Wallops and at JPL. The first phase of the transition was completed last summer. He continues to push for system and procedural improvements. NASA’s Wallops Flight Facility in Virginia requested Robert’s assistance with LADEE launch web coverage in September. Robert maintained and updated NASA’s LADEE and Wallops websites in the days leading up to, and in real time during, the launch date on Sept. 6, and into the early morning of Sept. 7. His efforts received compliments from staff at Wallops, Goddard, NASA Ames, and Headquarters, including from John Grunsfeld, associate administrator for NASA’s Science Mission Directorate. In January 2014, he returned to Wallops to provide similar support for Orbital’s first official Antares launch to the International Space Station. NASA Goddard’s social media team won a Shorty Award in the government category in early April. Robert’s involvement with the team has seen a steady increase. He participated in the December Earthrise anniversary Google+ hangout, and took the helm as producer halfway through when other members of the social media team unexpectedly had to step away. He continues to advise the team with regard to policy, procedures and interactions with social media stakeholders at Headquarters, Goddard, and elsewhere. Michelle Handleman coordinates and produces comprehensive satellite media tours across the spectrum of science disciplines at Goddard Space Flight Center, produces short news videos and b-roll material for This Week @ NASA, NASA TV, and other mediums, and assists the media and documentary film makers with interview and file video requests. For the total lunar eclipse that occurred on April 15, Michelle booked interviews with 36 national 68 | GESTAR Annual Report 2013 - 2014 and local television stations including ABC News.com, Reuters, Space.com and FOX News’ affiliate service called NewsEdge. She also booked 20 interviews with local television stations in the top 20 markets in the U.S., including Los Angeles (#2), Chicago (#3) and Philadelphia (#4). Three local television stations conducted onsite in-person interviews with NASA scientists. Michelle coordinated closely with producer Dan Gallagher to build a comprehensive campaign that included a gallery page on the SVS website to make it easier for media to find lunar eclipse visuals. Over the last year, Michelle has concluded 13 satellite media tours on a wide range of topics including the Arctic sea ice minimum, MAVEN launch, Comet ISON and wildfires. She is averaging about 28 interviews with national and local television stations per live shot. Some of the networks that have booked are MSNBC, CNN’s “Behind the Science with Chad Myers,” Reuters, CNN International, SkyNews, Space.com and ABCNews.com. Michelle has also consistently booked a number of local television stations in top 20 markets throughout the United States. For the upcoming year, Michelle is working on a comprehensive archive of the live shots campaigns that have been done over the last several years, as well as looking ahead to potential live shot campaigns throughout 2014. and works on the Planetary Science Department’s multimedia needs. In 2013, Planetary Science was selected as the theme for NASA’s annual event, “Close Encounters of the Planetary Minds: Goddard Explores the Solar System”, held at the National Air & Space Museum. David was selected as the Lead Producer and Editor for the visual presentations of Dr. James Garvin, Goddard Chief Scientist; Dr. Pamela Conrad, Deputy PI for the Sample Analysis at Mars experiment aboard Curiosity; Dr. Bruce Jakosky, PI for MAVEN and Image from “Bennu’s Journey”. Credit: M. Lentz Associate Director for Science at the University of Colorado’s Laboratory various milestones of Voyager 1 and 2 as they passed through for Atmospheric and Space Physics; and out of the Solar System. For the OCO-2 Megacities Carbon and Dr. Amy Simon-Miller, the Associate Director in Goddard’s Project, Michael created an animation that shows how various Solar System Exploration Division. In producing this show, David instruments will measure CO2 Emissions in Megacities such as was responsible for finding, organizing, building and editing Los Angeles. together all of the necessary visual elements for each speaker’s video package. He also edited the video for the event’s sponsors. The CIL studio is going through an upgrade, and Michael has Working with fellow producer Dan Gallagher, Goddard TV program been deeply involved in planning the use of new asset managemanager Pat Kennedy, and NASM projectionist Dean Fisk, David ment and job tracking software into the CIL animation production ran the control room production booth in the IMAX Theater during the event, so that each speaker’s visual presentation ran properly. pipeline as well as refining the animation pipeline for a more efficient workflow. Also, work continues on the infrastructure to support creating 4k animations and more animations are starting For the MAVEN Pre-Launch Press Conference, David served as to be created in this high-resolution format. the lead producer, creating all visual elements necessary for the speakers. This included editing video packages related to MAVEN’s mission and physical assembly, and creating the necessary Katie Lewis supports the Goddard web team in interactive multimedia development, including the dissemination of scientific graphics and still images related to MAVEN’s technical specificamedia, and provides support for the iPad and iPhone project, tions and the team’s public outreach efforts. Additionally, for NASA Viz, by creating websites, uploading media, and designing a video released in February 2014 titled “Playing Tag With an interfaces. In March 2014, the NASA Visualization Explorer team Asteroid” about the TAGSAM instrument that will be aboard the released the NASA Viz app version 1.9, the Universal App. Katie OSIRIS-REx spacecraft, David wrote the script and created and was the User Experience Designer for the app, which required a edited all of the visual elements of the production. David was the major design overhaul to fit the app’s newly-supported platform, producer and editor for “Jim Garvin’s Top Pics: LROC Images”, the iPhone. She redesigned icons, menus, and graphics for the a video released in March 2014 that focuses on images of the new app, the interface of which has been well-reviewed since its moon’s surface taken by the Lunar Reconnaissance Orbiter Camrelease. Katie also provided promotional graphics to support the era (LROC). NASA Viz app’s release. This past year, Michael Lentz created an animation that is near Also, Katie and Joycelyn Jones released a working version of the completion showing the formation of the solar system, how the NASA Viz HTML5 responsive website using Bootstrap 3 for review asteroid “Bennu” came to be, and why OSIRIS-Rex will be going by the team; this was a major overhaul of the current site. The site there to take a sample. This was another ambitious animation is awaiting final review and is optimized for both tablet and mobile project with many complex visual elements to create. Of note, this devices. animation is also being created in UHD 4k. David Ladd produces and edits videos that highlight NASA missions and scientific research, in particular video support for the Lunar Reconnaissance Orbiter, MAVEN, and OSIRIS-Rex missions, Michael’s animation for MAVEN: Mars Evolution was delivered and to date has had over 1.7 million views on the Goddard YouTube channel. He also created animations that will highlight the This winter may have been one of the coldest and snowiest on record for many parts of the U.S., but Michelle successfully focused this campaign on research that showed that signs of spring are actually coming about five days earlier than they did 60 years ago. Michelle worked closely with visualizers from the SVS and with scientists to build visuals for this campaign. Twenty-one media outlets booked interviews on this topic including Space.com, The Weather Channel and the FOX affiliate service NewsEdge that feeds material to their nationwide affiliates. Nine of the local television stations that booked interviews are in top 20 television markets including Chicago (#3), Philadelphia (#4), San Francisco (#6) and Washington, D.C. (#8). Michelle also coordinated two in-person interviews for Hearst TV affiliate service and WJZ in Baltimore, MD, as well as coordinating a print interview with NBC News. Michelle has made it a regular part of her satellite media tour strategy to create a specially designed live shot page and/or gallery page in the SVS website for campaigns. On this page Michelle includes b-roll and a canned interview for stations to download. She also sends this link to Goddard’s social media team to send out to followers. This coordinated effort has been very effective in letting media outlets and the public alike know where to find the great work that is being done by the scientists, animators and visualizers here at Goddard. For the NASA Scientific Visualization Studio, Katie delivered the fully-redesigned version of the SVS home page. She designed the site using Bootstrap 3, a mobile-first framework that allows the GESTAR Annual Report 2013 - 2014 | 69 cause of these extreme low temperatures. Additionally, with the launch of Landsat 8 in early 2013, high-quality data from this satellite was being returned as of late May 2013. As the lead multimedia producer for the Landsat program, Matt produced eight videos demonstrating the increased capabilities of the new satellite, and the societal benefits from these capabilities. In the coming year, he will be producing a video on the flight operations team for Landsat 8, and will produce videos for the Landsat program on Landsat’s role in monitoring the recovery from wildfires, assessing water quality, and determining water usage by agriculture. GROVER, the Goddard Rover. Image Credit: M. Radcliff page to be viewed on any screen size. She also did the front-end development for the site, using CSS3, HTML5, and JQuery. Future plans include the full redesign and front-end development of the new SVS website, which will be clean, responsive (optimized for all devices), play videos in-window, and focused on large-scale visuals as opposed to text. This includes the Gallery pages, People pages, individual asset/story pages, and the search page. Katie will also start the redesign of SVS ‘Partner’ pages, adapting them to the overall responsive schematic of the SVS redesign. This includes redesigning or building CI Lab, Goddard Media Studios, and the Hyperwall websites. Matthew Radcliff provides support to the Office of Communications, in particular Earth science communications. As the Video Producer for Landsat projects, Matt prepares videos for the press and for the general public, and collaborates with the Landsat Communication and Public Engagement staff to communicate the work of Landsat science and engineering teams. This past year at the AGU Fall Meeting, Matt produced a press conference that highlighted the research of Ted Scambos, a member of the Landsat Science Team. Dr. Scambos had been studying the extremely low temperatures of the East Antarctic Peninsula and found a region that has the coldest temperatures ever recorded on Earth. Using the high spatial resolution data from the new Landsat 8 satellite, Dr. Scambos was able to determine the meteorological 70 | GESTAR Annual Report 2013 - 2014 Student interns at Goddard had designed and built a robot capable of travelling autonomously in polar regions. In May/June 2013, as video producer, Matt traveled to Greenland to film this robot on its first polar expedition to the isolated center of Greenland’s ice sheet. GROVER, the Goddard Rover, carried a ground-penetrating radar to study the accumulation of snow on the ice sheet with particular attention to the ice layer left after the unusual melt in summer of 2012. The photos and videos he recorded of the rover and the two graduate students were used by several news organizations, and were featured in a NASA video. Working with the Earth Science Storytelling Team of NASA and NASA’s Earth Observatory, Matt produced a number of short videos showcasing NASA’s contributions to Earth science over the past year. The videos covered topics such as the calving of a massive iceberg from the Pine Island Glacier in Antarctica and the temperature and precipitation predictions from the Intergovernmental Panel on Climate Change (IPCC). In addition, in collaboration with fellow video producer Silvia Stoyanova, Matt produced a series of videos of NASA Earth Scientists answering questions about climate change submitted by the public. This series was called “Ask A Climate Scientist,” and the videos were used by many news organizations. Lastly, at the AGU meeting in December, he produced a series of short videos of NASA scientists explaining their AGU presentations in 15 seconds. The videos were published on the NASA Instagram account. Kayvon Sharghi oversees multiple storytelling projects and wears many hats to guide each project toward achieving its goals. The projects include reporting on NASA Earth science findings through digital media communication platforms and strategic online campaigns, and managing the editorial content and release of stories on the NASA Visualization Explorer app. As editor of the NASA Viz app, Kayvon manages all aspects of the editorial process, including the scheduling, production and release of two new stories each week. In the past year, he directed the release of more than 100 new stories. Under his editorial direction, the app has received positive ratings and reviews and has experienced significant growth. In March 2014, the app reached a new milestone, surpassing more than 1,000,000 unique downloads on the iTunes Store. Since its launch in 2011, Kayvon has produced nearly 15 percent of the total number of stories in the app. This past year alone he wrote 17 stories, the most of any contributor. In addition to working with a team of contributing writers at NASA Goddard Space Flight Center, Kayvon launched a student writing internship in partnership with the University of California, Santa Cruz, Science Communication Program. This past year, he managed two graduate students over 24 weeks, each contributing 12 stories to the app. By identifying the very best visual materials and stories to feature in the app, Kayvon has attracted new online audiences—including prominent news organizations and journalists—to explore and share NASA content. This is reflected in the increasing number of NASA Viz followers and frequent story mentions that appear on social media sites. Recently, version 1.9 of the app was rolled out, which will enable the viewing of stories on all iOS devices, presenting more opportunities to expand its audience. In support of the rollout, Kayvon tested internal versions of the app and helped troubleshoot issues experienced by the NASA Viz Software Development Team. He provided writing, editing and producing support in the creation of promotional materials used to announce the new version of the app to the public. He has also worked on developing ideas of how visual material can be presented in the app in new ways. In his role as Earth science producer, Kayvon produces video and animation products in support of NASA Earth Science news releases. This year he worked on multiple projects, including three items produced in collaboration with a team of writers, scientists and producers from NASA Jet Propulsion Laboratory. In addition to these projects, Kayvon worked closely with members of the Office of Communications on identifying exciting new areas with great potential for visual storytelling. This led to the planning and development of three new pilot projects that Kayvon will launch in summer 2014. The first two projects will use existing social media platforms to share NASA Earth science research and findings in short video reports, with run times of 15 seconds and 60-90 seconds. The third project aims to bring NASA science to the “offline masses” by producing short video packages that weathercasters at TV news stations can insert into their daily broadcasts. Kayvon assembled key information and addressed all the technical and design components needed to bring each project from idea to implementation. He also created project workflows, templates, video format guidelines, and added automated video export settings to the Final Cut Server to ensure these products can be produced and published with great speed. To assist him in creating these products, a multimedia Fellow was hired; Kayvon drafted a 12-month work plan that details monthly objectives and expected output. Since Kayvon began working with GESTAR in June 2011, he has contributed ideas on ways to improve the coordination of interdepartmental projects, with the goal of creating new animation products at a faster rate and with greater efficiency. To that effort, last year Kayvon created the SVS/CI Lab Pre-visualization Guide—a one-page form that scientists, writers, animators and producers can use to expedite the planning phase of new animation products created by the SVS and Conceptual Image Lab. In 2014, he developed a companion form—the SVS/CI Lab Project Guide—that helps writers and producers direct the creation of products, and captures essential information that details the project’s objectives, deliverables, and production timeline. In practice, the guides have helped facilitate communication between groups and resulted in improved efficiency, especially during the project planning phase. As a video producer, Silvia Stoyanova has served core missions and their multimedia objectives. When the Chelyabinsk Meteor made its appearance, Silvia worked on a visualization that illustrates a giant meteor exploding upon contact with Earth’s atmosphere. Following the bolide, the plume begins to circumnavigate the globe moving in the direction of the wind. The highly sensitive instruments onboard the NPP satellite detected the plume particles even months later. This visualization was a finalist in a competition and also was used in a short narrated video. Silvia worked on the GOES-R trailer, for the GOES-R mission that continues the legacy of the GOES series, delivering critical realtime data and helping forecasters predict severe weather even more accurately. The GOES-R trailer was remade with high-end graphics, animation, and motion graphic work. Silvia also worked on a short video for the GOES-R ABI Instrument, the primary instrument for scanning Earth’s weather, oceans, and environment. It is a significant improvement over instruments on NOAA’s current geostationary satellites. By combining the science and technical aspects of the instrument, this short video explains all improvements to this satellite as compared to previous GOES satellites. The video uses high-tech graphics and animation, as well as visualizations and satellite imagery. Her work in the coming year will include serving the GOES-R mission as well as supporting both the JPSS and NPP missions. The Remote Robotic Oxidizer Transfer Test (RROxiTT) project is on its way to proving that satellite servicing in orbit is not only posGESTAR Annual Report 2013 - 2014 | 71 sible but a huge cost-saving opportunity for new and existing missions. Silvia worked on the trailer and video, “RROxiTT: Another Step toward Servicing Satellites in Space”, which was produced and edited with the help of a successful collaboration and coordination with the Kennedy Space Center and great teamwork at NASA Goddard, involving the robotic lab as well as production assistant Katrina Jackson. The trailer informed the public that an important test of the technology was about to happen at KSC. During the test, the robotic arm was operated remotely from GSFC, the actual test was captured at KSC, and the majority of the interviews were shot at GSFC. The final short video discussed the successfully executed test, and showed footage and animation to explain the process. mated 29 videos released, with these videos ranging from animations, to breaking news footage of solar flares and CMEs, to narrated features about science results. As of April 22, 2014, these videos accounted for almost 6.4 million YouTube views. Scott also produced visuals for three press events. In June 2013, Scott edited a video compilation highlighting work done by GESTAR producers, animators, and web developers. His complete collection of work can be found at the Scientific Visualization Studio and/ or on YouTube. In October, Scott produced a heliophysics video of a particularly beautiful solar prominence eruption and the magnetic structures it left behind. That video went on to do very well, with good media saturation, and is currently at about 1.2 million views. Scott’s clips of the eruption were even used in the current Fox series “Cosmos”. Scott also headed the production work for comet ISON’s perihelion pass of the sun on Thanksgiving Day. Leading up to perihelion, Scott released several videos. The Scott Wiessinger provides visual support for both the Heliophysics and Astrophysics divisions at Goddard, focusing primarily on science results. He produces short videos, creates static graphics, guides the creation of animations and data visualizations, creates animations, provides materials to outside media and producers, collects, creates and organizes visuals for press conferences, and curates visuals online. He also coordinates and collaborates with science writers and scientists to produce accurate and accessible materials timed to coincide with press releases and other public announcements. Additionally, Scott is now the producer for the Wide-Field Infrared Survey Telescope (WFIRST) mission and has begun creating content for it. The mission is still in its early stages, but when launched it will be one of the most powerful telescopes in NASA’s astrophysics arsenal, on par with Hubble Gamma-Ray Burst, Image Credit: S. Wiessinger and JWST. WFIRST will do widefield infrared imaging and should answer many questions about dark matter and dark energy, as well as help find—and even directly image—exoplanets similar to those in our solar system. With such an important mission, there will be a great deal of video work to cover the engineering of the spacecraft and the science it will be exploring. Scott is currently planning the overall media strategy for the next few years. Overall plans are not set, but he is working on a mission trailer, a series of interviews with WFIRST scientists, including David Spergel, and animations and videos for the American Astronomical Society meetings in June and January. This past year, Scott produced, co-produced, edited and/or ani72 | GESTAR Annual Report 2013 - 2014 earliest showed projections of the comet’s orbit and discussed what a “sungrazing” comet is. In the days before perihelion, the videos were of footage of the comet from various heliophysics observatories, like STEREO. Then, on Thanksgiving Day, Scott was in the Solar Dynamics Observatory’s command center, where he produced images and video of the comet as it passed around the sun and ultimately broke up. Early in the following week, Scott compiled all of the footage and released a comprehensive video of perihelion. Combined, the ISON-related videos have almost 3.5 million views. February 11, 2014 was the fourth anniversary of SDO’s launch, and Scott edited the annual compilation of some LUNAR ECLIPSE: April 15, 2014 Dan Gallagher produced, edited, and narrated a two-minute video titled “Understanding Lunar Eclipses”, explaining the mechanics of lunar eclipses, to prepare the public for the total lunar eclipse of April 15th. Dan worked with Ernie Wright to create new animations for the video, which was released on April 8th. David Ladd produced and edited “Need To Know: Lunar Eclipse and LRO” (image below), a Q&A video providing details on the lunar eclipse and the effects it will have on the Lunar Reconnaissance Orbiter (LRO) spacecraft, which also included animation work by Ernie Wright. In fact, Ernie Wright created many visualizations for the April 15th total lunar eclipse, including the image (right), from “Lunar Eclipse of April 15, 2014 as Viewed from the Moon”, produced by Dan Gallagher, David Ladd, and Michelle Handleman. Because of the LRO’s orbital plane, the solar-powered spacecraft was without sunlight for almost three hours, its longest period of darkness to date, and its battery was drained to less than 40% of capacity. The visuals were used in web shorts and television interviews to help explain the eclipse and what LRO would experience. of the past year’s best footage. This video went on to be the most successful SDO anniversary video so far, and is in the top 10% of all Goddard videos. Scott also produced an interesting collaboration between NASA missions. SDO captured the moon partially eclipsing the sun, and Ernie Wright, the visualizer for the LRO mission, was able to generate a matching moon image that fit the dark outline in the SDO image exactly. The Weather Channel picked up the image, and it is a great example of the overlap of missions and how data from one mission can reinforce another. This year’s astrophysics releases were primarily results-driven. The first big release of the year was comprised of ultraviolet images of the Large and Small Magellanic Clouds by the Swift satellite, which was covered by Forbes, The Atlantic, NBC, Slate, and Popular Science among others. That was followed by a simulation of a black hole, which also did very well. Scott’s most successful astrophysics video of the year was actually an animation that he created. It showed a gamma-ray burst, the largest explosion in the universe. Stills of the video were used by The Guardian, AP, CBC, USA Today, The Telegraph, and CS Monitor to illustrate the story. During this year, Scott also saw the release of a longstanding project: a video about a black widow pulsar, Scott’s longest and most complex video to date. While it is much longer than most videos released by Goddard, its reasonable success is encouraging for future longer-format storytelling when the subject warrants it. This video also required Scott to orchestrate interviews in California and Germany and then integrate them with two more interviews shot on-site at GSFC. This approach allows for greater flexibility with interview coverage, and can result in better and more complete end products. Scott did much of his work in GESTAR Annual Report 2013 - 2014 | 73 astrophysics on illustration and animation. He created illustrations for flaring neutron stars, Jupiter-like exoplanets, gamma-ray bursts, and neutron stars to scale with cities. He also animated a gamma-ray burst, gravitational lensing, and active galactic nuclei. His increasing animation skills are useful because often astrophysics stories do not have compelling or understandable images with them. Animation and illustration are the best ways to engage the public and clarify the results. In the next year, he will continue to focus on science results for astrophysics. Upcoming projects include Swift’s 10th anniversary, a simulation of dark matter orbiting a black hole, and Eta Carinae’s dramatic binary system. from Bowling Green State University and Savannah College of Art & Design-SCAD (Atlanta and Savannah), she designed the courses around the needs of this project. The pilot project launched in January 2014 and will end May 28, 2014. CODE 606.4 (Sponsor: H. Mitchell) Trent Schindler provides visualization support for earth science missions and research as part of the Scientific Visualization Studio. Some highlights from the past year include Trent’s creation of an expanded visualization of groundwater depletion in India, using GRACE gravimetric data that ranged from 2003 to 2013. He created a visualization of an intrusion of stratospheric ozone to tropospheric levels, using volumetric rendering techniques applied to model output from GEOS-5; for the Megacities Carbon Project, he created a visualization showing the planetary boundary layer dynamics in the region of the Los Angeles Basin. Trent created a visualization of the jet stream over Europe, to be used in a forthcoming Horizon/BBC documentary. Another visualization created by Trent showed the projected wildfire risk for the continental United States over the next century as a result of climate change. Helen-Nicole Kostis continues to serve as the Project Manager of the NASA Visualization Explorer (NASAViz), designed and developed as a highly interactive visual and scientific storytelling app that releases two stories per week. This multi-disciplinary project is comprised of two teams: Software Development and User Interface Design and Editorial. Core team members are software developers, a producer/editor, an interactive designer and data visualizers. The NASA Viz app team has celebrated many achievements this past year. On May 30, 2013, they released the NASA Viz 1.8 iPad update. In late July, funding for FY14 was secured for the Software Development and Editorial Teams. In March 2014, there were several high points. On March 10, they released the NASA Viz 1.9 Universal app; this version made the app available on all iOS devices, such as iPad, iPhone and iPod Touch. Subsequently, the team received great reviews from users and sites for the Universal app, such as the review on TUAW, The Unofficial Apple Website: http://www.tuaw.com/2014/03/20/nasas-stunningvisualization-explorer-get-updated-and-offers-mo/?ncid=rss_truncated. Then, NASA Viz 1.9.1 app was released to address urgent bug fixes for the universal app on March 26. Further, HelenNicole and colleagues identified a list of products to develop in collaboration with the Office of Education to help teachers in the classroom. The team is currently designing a plan for implementation of these products and will present them at NASA HQ during May 2014. Of note: it is important to mention that this project would not have been possible without the support from Ming-Ying Wei and Ruth Netting and the contributions of the excellent core team members. For a complete listing of collaborators please visit: http://svs.gsfc.nasa.gov/nasaviz/credits.html. Helen-Nicole also serves as the Product Manager for the ICESat-2 Student Collaborative Pilot Project. For the purposes of this pilot project, in collaboration with Valerie Casasanto (ICESat-2 EPO Lead) and Dr. Thorsten Markus (ICESat-2 Project Scientist), HelenNicole designed and developed a pilot project for the development of innovative outreach products. She identified educational institutions to work in this project; in collaboration with faculty 74 | GESTAR Annual Report 2013 - 2014 sualizations in support of the Comet ISON observations. These two new visualizations were generated with the camera following the comet towards the inner solar system. The view provides a more dramatic presentation of the comet’s close passage of Mars in early October 2013. This coming year, Helen-Nicole will have a book in progress. She signed a book contract with CRC Press to work on a book titled “A Practical Guide in Art Science Collaborations for Visualization and Computer Graphics” (working title). This book is based on collaborative work that has taken place over the past three years. Helen-Nicole will serve as first author, and the book draft is scheduled for submission to the publisher September 2015. The scientific visualization products provided by Ernie Wright are in support of education, public outreach, and communication for Lunar Reconnaissance Orbiter and other missions. One of this year’s biggest highlights was a 7-minute video, “Apollo 8 Earthrise”, created by Ernie that commemorates the 45th anniversary of Apollo 8’s historic flight by recreating the moment when the crew first saw and photographed the Earth rising from behind the Moon. The visualization draws on LRO data and numerous historical sources, and it reveals significant new information about the Earthrise photographs. The video was edited by GESTAR multimedia producer Daniel Gallagher and narrated by Andrew Chaikin, author of A Man on the Moon. This video has been viewed over 1,000,000 times on YouTube. Ernie discussed the video in a Google+ hangout with Andy Chaikin and LRO chief scientist John Keller, and he will present a talk about the making of the video at the 2014 SIGGRAPH computer graphics conference. He has received positive, personal feedback on the video from all three Apollo 8 astronauts. For the June 23, 2013 supermoon, Ernie developed graphics to support television interviews for this event. GSFC scientists Noah Petro and Michelle Thaller were featured on several dozen morning news shows on June 21st to explain the phenomenon of a full Moon occurring very near perigee. Also, as he has since 2011, Ernie created a Moon phase and libration animation for the Earthrise. Image Credit: E. Wright current year. The Fox/National Geographic TV series “Cosmos” hosted by Neil deGrasse Tyson (http://www.cosmosontv.com) has been using portions of these animations in its depictions of the Moon. They’ve appeared at the 5:39 mark in Episode 1 and at 41:30 in Episode 3. Several coronal mass ejections (CMEs) were launched by the Sun during the week of May 15, 2013, and Tom Bridgman processed Community-Coordinated Modeling Center (CCMC) prediction model runs for quick release. The mid-May events were part of a series of five events in one week, so Tom requested the CCMC to run higher-resolution models of this time frame—out to the orbit of Saturn—to integrate into future visuals. The visuals developed for Solar Cycle 24 have been collected and released on a single web page titled “CCMC Model Runs” on the SVS website. A side project that came out of Tom’s experiments on the Annotated Sun visuals, the “Argo View” of multi-wavelength imagery from the Solar Dynamics Observatory (SDO), was completed and released. A still image from this visualization has appeared in print in Issue 22 of the magazine All About Space. For the HelioFleet 2013, Tom completed an update to the view of NASA heliophysics missions operating in 2012. This update includes the renaming of the Radiation Belt Storm Probes (RBSP) to the Van Allen Probes, the addition of the Interface Region Imaging Spectrograph (IRIS) mission, and the Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) satellites. This version should be representative of the operating heliofleet until the launch of the Magnetospheric Multiscale (MMS) mission. Tom also generated supplemental vi- Most of the development for the Voyager retrospective story, covering the accomplishments of the spacecraft’s magnetometer, has been completed. In addition to the visualization of the Voyager trajectories through the Solar System, simple magnetosphere models have been generated for the planets Jupiter, Saturn, Uranus, and Neptune illustrating a simplified version of the magnetic field interaction based on each planet’s rotation and magnetic axis. At present, the release dates are not finalized. For 2014-2015, in a project for Planetary Science, Tom is developing visualizations of the Comet 209P/LINEAR orbit that may be the source of a new meteor shower around Memorial Day. This visualization is still under development. Additionally, as a first test of working with data from the IRIS mission, Tom extracted imagery data from the IRIS Slit-Jaw Imager (SJI) instrument. Due to the pointing configuration for the observation, there were good options for cleaning up some data holes. To expand the capabilities with IRIS data, Tom is developing some methods of presenting spectral data with the imagery. Leann Johnson works in many aspects of software development. For the hyperwall, Leann released a graphical tool that allows users to create and edit hyperwall content using a database backend. She optimized certain aspects of the interface via the underlying database structure and the multiprocessing of specific functions. The tool includes features to read in hyperwall frame sets and hyperwall shows into the database structure from the file system, as well as the ability to write them back out for direct use on the hyperwall itself. She fixed several bugs and made several minor improvements, and provided training to multiple groups to use this new software. After collecting user feedback, Leann designed version two of the software, which aims to de-clutter the existing interface, allowing it to be more user-intuitive and more robust on the back-end. Once version two of the graphical hyperwall editing software is completed and she has addressed bugs and user input, Leann will release the software and create an online user guide. GESTAR Annual Report 2013 - 2014 | 75 She implemented the new database design in a test area and significantly enhanced the library of methods allowing for easy manipulation of the corresponding object structure. The library utilizes external tools written by Eric Sokolowsky, which were tested by Leann with a variety of inputs to improve efficiency in usage to reduce runtime. She began simplifying and altering the graphical user interface to correspond with the new structure. Leann also wrote software to create true, Pixar Renderman-compatible point cloud files given proper data, which are then used by SVS animators for volumetric rendering. She Hurricane Sandy, as featured in “Water Falls”. Image Credit: A. Kekesi later enhanced this software to be able to handle very large data files given as input. In the same efEarly scientific data visualization is key in establishing a good first fort, she compiled a version of the impression of mission status to both policy makers and taxpaysoftware to run on the NCCS Discover cluster. As needed, Leann ers alike. Through scientific visualization, Alex helped each of corrected errors in and enhanced several pieces of SVS software these missions embark on what will hopefully be interesting and dealing with statistical analysis, internal reporting, file and datachallenging visualization work for years to come. One of Alex’s base management and storage, movie encoding, and the NASA Viz iPad application. Leann imported all existing project code into most notable achievements was developing an initial visualization pipeline for the Global Precipitation Measurement (GPM) an SVS repository in order to coordinate effectively with fellow Mission’s GPM Microwave Imager (GPM/GMI) data. By leveragdevelopers. In addition, she created a method to deploy updated ing GPM science team codes, Alex created a pipeline (in various software from the repository to the released area, allowing for networks) that reads in near real-time GPM/GMI data (as well as quick and easy software maintenance by the whole team. global cloud cover data) and automatically sets up a Maya scene Leann supported several local hyperwall demonstrations in ready to be animated. Alex successfully used this new pipeline terms of content creation and technical assistance. She created for the GPM “first light” release, which visualized some of GPM’s hyperwall shows, as requested, for members of the SVS and the first data results of a Pacific Storm east of Japan only days after Earth Sciences Division, as well as NASA colleagues at the Jet launch (see p. 66). Since then, the pipeline has been further Propulsion Laboratory and Ames Research Center. Per requests refined and more recently used to visualize GPM/GMI data of the from multiple customers, Leann stitched together specific hyperlate winter snowstorm that hit the east coast of the United States wall show content tiles and encoded the resulting full-resolution on March 17, 2014. frames into movie files. She supported a mass entry of hyperwall content and related metadata into the SVS database system from Alex corrected and enhanced the “Florida Everglades LDCM Band Remix” visualization. It was noted that the earlier release of this the Earth Science Division. Several programs were written to key Landsat Data Continuity Mission (LDCM) animation had a handle file and database integration, and designed and impleminor error in the labeling of the Florida Everglades. Since the mented an interactive web page with a database back-end to correction was going to require an AfterEffects re-render of the track the content and metadata entry from several users. Leann entire animation anyway, Alex took the opportunity to add the compiled a basic report generator for hyperwall shows that meet Everglades boundary as he had initially envisioned. Since the given criteria; these reports are used by customers who routinely boundary data was stored in a shapefile format, new code was utilize and produce hyperwall content. written in order to properly ingest it into SVS visualization tools. Alex Kekesi was the lead visualizer on both the NASA Landsat-8 This was then integrated into the scene, with the newly adjusted and GPM projects. Both of these missions are critical to NASA label, and re-rendered along with all the web products. Goddard’s future success as a leader in Earth science research. For his work with the hyperwall, Alex adapted the Intergovernmen76 | GESTAR Annual Report 2013 - 2014 tal Panel on Climate Change (IPCC) 21st Century Temperature and Precipitation Visualizations for both 3x3 and 5x3 hyperwall shows, which have been shown at the United Nations Framework Convention on Climate Change Conference of Parties (COP19), the Supercomputing (SC13) conference, the 2013 American Geophysical Union (AGU) Fall Meeting, as well as Congressional and White House staff visits to NASA Goddard. These new shows have proven to be extremely popular and are often used in NCCS hyperwall demos. Alex delivered a novel new visualization of Hurricane Sandy for the upcoming GPM satellite Science On a Sphere (SOS) show titled “Water Falls”. A unique treatment was chosen to utilize the spherical projection system in a way scientific data had not been shown before. The treatment required some research and testing to project a virtual horizon on a spherical display system that would be convincing to the SOS audience. The final visualization is best viewed on an SOS system. Eric Sokolowsky develops and deploys software to run on hyperwall systems in order to showcase NASA science at meetings and on tours, of which there were several over this past year. NASA routinely travels with the hyperwall system on display at scientific meetings, where NASA scientists explain their research in front of an audience. Eric provided support to conferences and meetings in support of NASA’s hyperwall and public outreach efforts, which involved loading presentation material, running the presentations on behalf of the presenters, and providing technical support for the hyperwall system. This year’s meetings included the International Congress for Conservation Biology meeting in Baltimore, MD; the Geological Society of America conference in Denver, Colo.; the United Nations Framework Convention on Climate Change Conference of Parties in Warsaw, Poland to support the U.S. State Department; the Supercomputing Conference in Denver, Colo.; the American Geophysical Union Fall Meeting in San Francisco, CA; and the American Meteorological Society Annual Meeting in Atlanta, GA. The presentations were well received, and Eric’s support was critical to their success. While he did not attend other meetings, he did provide support by preparing the hyperwall to travel. These meetings were the Group on Earth Observations Ministerial Summit in Geneva, Switzerland; the Ocean Sciences Meeting in Honolulu, HI; and the National Council for Science and the Environment meeting in Crystal City, VA. After each of these meetings concludes, Eric makes the presentations available on the web by copying the hyperwall shows and content back to the SVS website. Eric is also responsible for hyperwall maintenance, which included updating several hyperwall installations to run Fedora 17 instead of Fedora 14 (the test hyperwall in Building 28, the hyperwall in the Building 33 lobby, and one of the traveling Mac Mini hyperwall systems). He is also working on deploying some new hardware to control the hyperwall made by Xi3 Corporation. These machines are very small and energy-efficient, making them easier to transport for meetings across the nation and around the world. He has almost completed the installation and testing of Fedora 20 on these machines. His management duties involve maintaining the vast and growing library of hyperwall content, and to this end, Eric and others have developed capabilities to organize this content by moving it into the SVS animation catalog system, where captions and text can be added, information can be searched, and everything can be made visible online as a web page. He also improved the titles of many hyperwall shows to make them easier to locate when searching and has continued generating new previews for hyperwall shows. Several software upgrades to the hyperwall were implemented. Eric improved the hyperwall user interface by adding the ability to perform full-text searching for each show, using information in the title, the caption text, any keywords, the file name, and the animation number. The user sees a preview image of each show. Eric made the interface and software more responsive and reliable. He also improved the web interface into hyperwall content available at http://svs.gsfc.nasa.gov/hyperwall, where all past shows and events are archived. Other improvements to the hyperwall include the tool that Eric wrote that controls monitors through the serial port, in order to more easily play content from a single computer that is not aware of the hyperwall, allowing software demos and high-resolution videos with synchronized sound to be played more easily. He also enabled the use of a presentation remote control to be used with the hyperwall when controlling a playlist, allowing presenters to control the pace and switching of their own presentations in front of the hyperwall. When the end of the presentation is reached, a blank screen automatically appears. Eric wrote a program to automatically create caption images, and these images are displayed on a separate monitor next to the hyperwall screens. Having these caption images generated automatically saves effort in creating them manually. He supported the NASA Center for Climate Simulation Software by continuing to maintain the Web Map Service (WMS) that was developed for use by NCCS, its customers and users. The NCCS runs the Earth system model, the GEOS-5, simulating weather and other Earth system processes. The WMS is a “window” into the climate model, showing users visualizations of the various parameters and processes. Eric enabled the WMS to provide imagery from a new version of data files that has been made available recently. Eric provided NASA SVS Software Support by writing new tools for use by SVS team members: dbmirror is a tool used to mirror one hyperwall animation to the web server; dbmigrate is used to move particular files associated with an animation into the SVS database directory structure; movieframe is a tool used to extract a particular frame from a movie file, which is useful for generating GESTAR Annual Report 2013 - 2014 | 77 image previews of movies for the SVS website; and, cdb is a tool to easily change a user’s current working directory to a particular animation. This shortcut can save a lot of repeated effort. Looking ahead, due to the proliferation of desktop environments found at the SVS, Eric is interested in using virtual machines to make a consistent build and testing environment for all of the different platforms. He currently supports four versions of Fedora and two (soon to be three) versions of CentOS, to support both internal tools and also for compiling programs for the hyperwall. Cynthia (Cindy) Starr provides visualizations, and over this past year, her work was centered on the OIB mission and included animations for events in both polar regions, from Greenland to Antarctica. The topography of the bedrock under the Antarctic Ice Sheet is critical to understanding the ice sheet’s dynamic motion, thickness, and influence on the surrounding ocean and global climate. In 2001, the British Antarctic Survey (BAS) released a map named BEDMAP1 of the bed under the Antarctic Ice Sheet derived from data collected by an international consortium of scientists over the prior 50 years. In 2013, BAS released an updated data set called BEDMAP2 that incorporates an additional 25 million measurements taken over the past two decades. Cindy created an animation for Operation IceBridge (OIB) that compares BEDMAP2 to BEDMAP1, showing the improvements in resolution and coverage. In this animation, she incorporated ice flows, OIB flight paths, and use of a cutting plane to remove the surface of the ice sheet. She developed the narration jointly with Jefferson Beck and worked iteratively with OIB team members (Charles Webb, Christy Hansen, George Hale, and Michael Studinger) to design the storyboard. She produced the animation with assistance from Jefferson and provided the final animation along with high-resolution still images via the SVS website. Scientists recently completed an expedition to the ice shelf buffering the Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet that has rapidly thinned and accelerated in recent decades. Drilling a shaft through the ice shelf, they submerged instruments beneath the ice to measure ocean velocity, temperature, and salinity. Cindy created an animation that depicts this process. The animation shows the velocity-colored ocean currents from the high-resolution Estimation of the Circulation and Climate of the Ocean (ECCO3) model circulating around and under the Pine Island ice shelf, which is sliced away to reveal the ocean flows under the ice. A shaft is shown penetrating through the ice sheet, and the instrument is lowered through the shaft into the water that flows beneath the ice shelf. This animation was in support of a research paper published in Science in September 2013 and was developed with a very short lead time in order to meet the publication deadline. Cindy created an animation “Greenland’s Mega-Canyon beneath the Ice Sheet” that portrays topographic data of the bedrock under the Greenland ice sheet derived from ice-penetrating radar data. In this animation, the surface of the ice sheet is stripped 78 | GESTAR Annual Report 2013 - 2014 away to reveal the false-color topography of the underlying bedrock. False color derived from the topography elevation clearly shows a 750-km-long sub-glacial canyon in northern Greenland that likely has influenced basal water flow from the ice sheet interior to the margin. Cindy was given a short development time due to the publication date of the associated research paper, but was able to leverage prior work from the Greenland dh/dt project to meet the tight deadline. This animation has been widely circulated in the media and has received over 1.2 million hits on YouTube. She generated a rough-cut animation, “Measuring Elevation Changes on the Greenland Ice Sheet”, that shows the sequence of elevation change data over various parts of Greenland with flow vectors, and met with Jefferson Beck and Bea Csatho (Univ. of Buffalo) to review the results. When the team determined that a narration was necessary in order to explain the meaning of this data, Cindy worked with Jefferson to develop a script. She also obtained additional data sets needed to illustrate the script, including the bedrock topography, ICESat flight paths, IceBridge flight paths, and ice drainage basins, integrating these into the animation project. Once she received the rough-cut audio file of the narration, she incorporated the audio track into the Maya project, using it to set the timing of the animation. She also modified the scripts and key frames on project assets to work with the narration, and obtained and incorporated time-sequence footage of glacier movement from the Extreme Ice Survey as well. She worked with Horace Mitchell to improve the appearance of the vector flows representing the movement of the ice sheet. Cindy obtained and incorporated updated data from Bea Csatho extending through 2012 and also incorporated additional IceBridge tracks from the 2012 campaign. She obtained recommendations from staff member reviews and incorporated their recommended changes. She generated a variety of still images along with the final animation and made all of the materials available on the SVS web page. Cindy selected an array of 33 of the best SVS animations for inclusion in an “SVS Highlights” Animation Sampler, the purpose being to portray the wide variety of visualization techniques employed in recent projects. She created a storyboard document with small images and links to the original animations in the SVS database, as well as an After Effects project including short subsets of each selection, and generated a draft movie that was originally about 10 minutes long and revised to be about 5 minutes long. She generated a comprehensive list of credits for the trailer, updated the PDF storyboard document to summarize each animation and provided a link to the original SVS web page of each selection, making it available as documentation on the SVS website. GPM Materials. Credit: S. Bensusen and H. Hanson. Global Science & Technology Global Science and Technology (GST) Staff (sponsor: S. Platnick), which consists of Ryan Barker, Sally Bensusen, Steve Graham, Heather Hanson, Winnie Humberson, Marit Jentoft-Nilsen, Mark Malanoski, Debbi McLean, Kevin Miller, Cindy Trapp, and Alan Ward, provide support on three different tasks. For their first task, GST is the primary point of contact for NASA’s Earth Science Division’s science exhibit outreach and product development. Over this past year, they provided conference support to five national and international events. For COP 19 (the Nineteenth Conference of the Parties to the United Nations Framework Convention on Climate Change), Warsaw, Poland, November 11–22, 2013, Winnie Humberson worked with the Department of State in a coordinated effort to facilitate the United States’ presence at COP 19. NASA’s hyperwall was a major component at the conference. Marit Jentoft-Nilsen, Steve Graham, Mark Malanoski, Heather Hanson, and Winnie worked together to sort out existing hyperwall content into four climate themes. Heather provided short paragraphs on the four themes to the Department of State for their official COP-19 U.S. Center program. Marit traveled to Warsaw to operate the hyperwall system and to act as a docent for the exhibit during the second week of the conference. Kevin Miller and Heather worked on a Hyperwall Content brochure and schedule for COP-19, including short descriptions about each animation within the four themes. For the 14th National Conference on Science, Policy, and the Environment (NCSE), Washington, DC, January 28–30, 2014, Winnie coordinated NASA’s 25x25-foot science exhibit, and Marit, Steve, Heather, and Mark provided docent support for the hyperwall content during exhibit hours. Heather provided text and organized content for Kevin to create a hyperwall content brochure for NCSE. Kevin also produced signage for each hyperwall presentation. The following week, support was provided at the 94th Annual American Meteorological Society (AMS), held in Atlanta, GA, February 2–6. NASA’s science exhibit encompassed a 400-square-foot area with the hyperwall as the main component. Five NASA scientists utilized the hyperwall for their presentations. Steve and Mark provided technical support for the presenters and also facilitated the set-up/dismantle of the exhibit. In late February, at the 2014 Ocean Sciences Meeting (OSM), held in Honolulu, HI, Heather and Marit coordinated a group of 12 speakers for the Ocean Sciences Meeting, provided a booth speaker schedule, and also coordinated the hyperwall playlists and content. Marit worked with presenters Felix Landerer, Liane Guild, and others to create new visualizations focused on ocean topics. Examples include an Antarctic ice sheet mass loss visualization based on GRACE data, visualizations showing the use of global NASA data sets as inputs to NOAA’s Coral Reef watch product, and a new Aquarius sea surface salinity visualization based on new daily data from Gary Lagerlof and Hsun-Ying Kao of the Jet Propulsion Laboratory (JPL). Heather and Marit traveled to the conference venue to set-up/dismantle NASA’s exhibit, talked with booth visitors, and provided technical support for the presenters. Most recently, the team provided support at the Japan Geophysical Union Annual Meeting (JpGU), held from April 28–May 2, in Yokohama, Japan. Winnie organized and facilitated NASA’s exhibit with the JpGU committee. Michael Freilich, Director of NASA’s Earth Science Division, was a Distinguished Speaker at the conference. Steve organized the hyperwall speakers, gathered content for presentations, and provided technical assistance during the presentations. Winnie was on-site as NASA’s POC. In the coming year, GST will provide support at the IEEE Geoscience and Remote Sensing Society (GRSS), Quebec City, Canada, July 13–18; the Esri International Users Conference, San Diego, CA, July 14–18; and the Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting, Royton Sapporo Hotel, Japan, July 28–August 1. GST staff also creates various communication products to be used for public outreach. Kevin designed a tri-fold brochure for NASA’S Earth-observing Missions; Heather helped to organize GESTAR Annual Report 2013 - 2014 | 79 and finalize the text; Marit updated an existing mission diagram by removing obsolete missions. The updated graphic became the cover art for the brochure. The brochure will be used to promote Operating Airborne Missions, Operating Satellite Missions, and Future Missions for 2014 and beyond. For this year’s GPM mission, members of the team created a Mission Brochure, Folder, and Lithograph. Sally and Heather worked together to produce the GPM mission brochure for use at prelaunch meetings. They also collaborated with the mission science team to formulate an initial storyline for the text and mock up layout for the 20-page brochure, spread by spread, from discussions about precipitation science to the spacecraft’s instruments. The cover shows the GPM Core Observatory grouped with its constellation partners, the pocket folder is used for collecting all current GPM materials, and the interior text describes the international effort behind the mission. Included was a QR code embedded on the right-hand flap for a direct link to more GPM information. In response to the GPM science team’s request for an updated lithograph to be modeled after the design of their previous version, Sally created a new GPM Constellation cover illustration to coordinate with the other previously created GPM materials. Another communication piece is The Earth Observer Newsletter, a bi-monthly publication that documents and reports on the Earth Observing System (EOS). The newsletter has an international and domestic subscriber list of more than 3,000 people. Alan Ward, the executive editor, and Heather, a technical/assistant editor, work with newsletter contributors to collect, edit, and finalize text and content for each issue. Debbi McLean produces the layout and design for each issue. The newsletter recently marked its 25th anniversary. GST staff provide hyperwall content development and maintenance as well. Marit, Mark, and Heather worked together to update hyperwall visualizations from content published on World of Change (earthobservatory.nasa.gov/Features/WorldOfChange/) and NASA Earth Observations (neo.sci.gsfc.nasa.gov). They created animations from the still image time series, wrote captions, and created web versions for use on the new hyperwall website. Examples include the Aral Sea time series to 2013 and the CERES Monthly Solar Insolation, both found on the SVS site. Marit updated the Aquarius Sea surface Salinity visualization through October 2013 to showcase more than two years of data from the Aquarius instrument, and Mark created a visualization showing the flooding on the Platte River. Marit created a visualization showing Greenland ice sheet mass loss. Heather edited existing captions or wrote new ones for the approximately 180 hyperwall visualizations that make up the first group to be transferred to the new hyperwall web page/database. Future plans include the addition of hyperwall content on ocean topics to the online hyperwall library, such as content used for past hyperwall events (including the recent 2014 Ocean Sciences Meeting) as well as content 80 | GESTAR Annual Report 2013 - 2014 contributed by other centers such as JPL. These new ocean visualizations will form part of the content to be used at a State Department ocean meeting in June 2014. For its second task, GST (sponsor: S. Platnick) is the primary point of contact for NASA’s Science Mission Directorate’s science exhibit outreach and product development. The team provided conference support for SMD efforts at the Geological Society of America (GSA) Annual Meeting & Expo, held in Denver, CO, from October 27–30. Winnie Humberson organized NASA’s science exhibit and served as the POC during the four-day expo. NASA’s exhibit encompassed a 600-square-foot footprint that featured the NASA hyperwall. Steve Graham was on-site to provide technical support and to facilitate set-up and dismantle of the exhibit. At the American Geophysical Union (AGU) Fall Meeting, held in San Francisco, CA, December 9-12, Winnie organized and coordinated the NASA science exhibit, which represented NASA’s Science Mission Directorate and Earth Sciences Division by way of dynamic hyperwall presentations, in-booth side-event presentations and demonstrations, interactive kiosk stations, and several information tables that offered face-to-face interactions with staff. In total, there were 26 excellent scientists recruited to deliver dynamic hyperwall presentations, including several from Goddard Space Flight Center. Michael Freilich, Director of Earth Sciences at NASA Headquarters, and Lawrence Friedl, Director of Applied Sciences at NASA Headquarters, opened NASA’s booth during the Ice-Breaker Reception. John Grunsfeld, Associate Administrator for the SMD, NASA Headquarters, and Ellen Stofan, NASA Chief Scientist, participated in a media event in front of the hyperwall during the Ice-Breaker Reception. Jack Kaye, Associate Director for Research at NASA Headquarters, helped close the series of hyperwall talks on Thursday, December 12. The hyperwall presentations concluded with 15 minutes of STS-132 video of the crew onboard the International Space Station. The estimated 100 people viewing this inspirational film appeared very moved. Additionally, Steve and Mark Malanoski provided on-site technical support and organized the set-up and dismantle of NASA’s 2,000 square foot exhibit. Heather Hanson attended town hall sessions for reporting purposes and helped staff NASA’s exhibit. Kevin Miller designed and produced NASA’s exhibit floor plan, program book, speaker agenda flyer, speaker agenda poster, NASA hyperwall flyer, hyperwall banner stands, and kiosk-speaker presentation templates for the hyperwall and side events. GST staff will once again be on hand at the 2014 AGU Meeting. At the 223rd American Astronomical Society (AAS), held in Washington, DC, January 5–9, Winnie coordinated NASA’s science exhibit. The following nine missions participated: Transiting Exoplanet Survey Satellite, Physics of the Cosmos Program, Wide Field InfraRed Survey Telescope - Astrophysics Focused Telescope Assets, Cosmic Origins Program, NICER-Neutron star Interior Composition ExploreR, NuSTAR-Nuclear Spectroscopic Telescope Array, Exoplanet Exploration Program, Postdoctoral Program, and Astrophysics Roadmap. Mark and Sally Bensusen were on-site to help set up and dismantle the 20- by 30-foot exhibit space and hand out materials to students and conference attendees. Kevin designed and printed NASA’s exhibit floorplan, Astrophysics banner, posters (COR-Cosmic Origins, PCOS-Physics of the Cosmos, ExEP-Exoplanet Exploration Program, NuSTAR-Nuclear Spectroscopic Telescope Array), and a speaker agenda poster/flyer. Heather reviewed and edited the content prior to production. properly condensed before they were imported to the library. Mark also added the new Solar Dynamics Observatory “Argo” heliophysics visualization from the SVS to the hyperwall catalog. Sally added a hyperwall show featuring observations from Stratospheric Observatory for Infrared Astronomy (SOFIA)/Faint Object Infrared Camera for the SOFIA Telescope (FORCAST) instrument. (Both are available on the first page of the hyperwall catalog.) Additionally, Sally completed a large 4k high-resolution illustration showing the structure of the sun and its interaction with Earth. Winnie was the coordinator for NASA’s Earth Day at Union Station, held in Washington, DC, April 21-22. Components included 18 hands-on activities, a visit from middle school students, specifically for them to participate in the NASA activities, organizing and scheduling 12 hyperwall speakers and their presentations, and facilitating a feed from the International Space Station. NASA Administrator Charles Bolden made a special presentation on April 22nd titled “2014: A Big Year For Earth at NASA”. Opening presentations were provided by Dr. John Grunsfeld, Associate Administrator of the Science Mission Directorate, NASA Headquarters; Dr. Michael Freilich, Director of the Earth Science Division, NASA Headquarters; Kathryn Roger, President of Earth Day Network; and Gwen Camp, Director of Individual and Community Preparedness at the Federal Emergency Management Agency. Several GST staff provided support at the hands-on activities. Kevin Miller designed and produced several posters, banners, and a speaker agenda for the hyperwall presentations. Kevin and Heather worked together on content for the Passport Activity Guide, with Kevin designing and producing the final version. The third task for GST Staff (sponsor: S. Platnick) is as the primary point of contact for NASA’s Applied Sciences Division’s science exhibit outreach and product development. They provided conference support for the International Congress for Conservation Biology (ICCB), held in Baltimore, MD, July 21–25. Steve Graham supervised the set-up/teardown of NASA’s exhibit, including the hyperwall, and provided technical assistance for the hyperwall presentations. Heather Hanson and Steve interacted with conference attendees and disbursed relevant informational materials. An annual and in-demand item is the NASA Science Calendar (image above), and this year Debbi created the cover art and all design aspects and production of the calendar for 2014. Alan Ward and Heather crafted technical caption text into short stories for each monthly image. Marit created two images for the calendar—one using Landsat-8 to show the Salton Sea in true color and Thermal IR, and one using GRACE data to show drought in the Middle East. The calendar is a much sought-after publication used as an outreach tool at major science conferences. Steve, Mark, Marit, and Heather worked together on the twelve 2014 Science Calendar images (four from each division) to prepare them for the hyperwall library as new content. The image files were resized and captions were written for each image and From January 13-17, the Group On Earth Observations (GEO)-X Plenary and 2014 Ministerial Summit was held in Geneva, Switzerland. Winnie Humberson organized the interagency U.S. GEO exhibit. Winnie and Steve traveled to Geneva to provide technical and organizational support throughout the conference. The hyperwall was the prime component of the exhibit and was utilized by members of the delegation as a unique platform to convey the importance of satellite observations. In particular, Dr. Michael Freilich, Director, ESD at NASA Headquarters, gave multiple presentations to delegates, ministers, and to the head of the U.S. delegation, Dr. Patrick Gallagher, the Deputy Secretary of Commerce. Dr. Kathryn D. Sullivan, Under Secretary of Commerce for Oceans and Atmosphere and NOAA Administrator, wrote a letter of appreciation acknowledging the efforts of Winnie and Steve for their hard work and dedication. The letter of appreciation received a strong endorsement from NASA Administrator Charles F. Bolden. NASA’s significant contributions to the Ministerial Summit have resulted in a renewal of the GEO mandate for another decade. Communication Products were provided for the GEO-X Plenary and 2014 Ministerial Summit. Heather provided text and helped organize content with Steve and Kevin Miller to create a hyperwall content brochure for GEO-X. Kevin designed several posters and signage for the U.S. exhibit. This GST task continues to create GESTAR Annual Report 2013 - 2014 | 81 booklets for its Understanding Earth series. This past year, Sally Bensusen and Heather collaborated with Allison Leidner from NASA Headquarters to produce this 16-page booklet, “Understanding Earth: Biodiversity”, the fourth booklet in the task’s Understanding Earth series (see A. Leidner, Code 610). The Biodiversity brochure describes how satellite observations—often combined with other measurements taken on the ground or from aircraft—provide information relevant to the distribution of ecosystems and their resident species and how scientists use this information to understand patterns of biodiversity, how biodiversity is changing, and the drivers of the changes, as well as to predict the impacts of environmental changes on biodiversity in the future. Other booklets in the series include: Understanding Earth: The Journey of Dust; Understanding Earth: Biomass Burning; and Understanding Earth: The Icy Arctic. GST staff also provided hyperwall content development and maintenance for this task. Steve, Heather, Marit Jentoft-Nilsen and Mark Malanoski prepared content for the ICCB hyperwall presenters by creating playlists, adapting and improving presenters’ content for better display on the hyperwall, making preview versions of hyperwall shows, and gathering metadata to ensure that speakers knew exactly what each visualization showed. Additionally, Steve, Heather, Marit and Mark transferred the public hyperwall website from science.nasa.gov to svs.gsfc.nasa.gov. The team worked with SVS developers to ensure that the design of the new site had good search capabilities. The new database was implemented to allow searching for a presentation by a keyword and to obtain faster downloads for the larger presentations. The direct link for the new site is http://svs.gsfc.nasa.gov/cgi-bin/ search.cgi?contentType=p, and is also directly linked to the main hyperwall web portal http://science.nasa.gov/hyperwall/. CODE 160: Office of Education Through her many collaborations, Dr. Benita Bell (sponsor: J. Harrington) aims to develop domestic and global initiatives and utilize the existing technology framework to increase astrobiology research and diversity among minority serving institutions. The continued focus will be to identify colleges and universities, both domestic and international with research capabilities and a mutual interest in astrobiology and thereby create exciting partnerships to engage students in STEM research. Research diversity and cultural diversity remains the core focus of the partnership framework model. This past year, Dr. Bell and a NASA Ames scientist collaborated to create an initiative between Spelman College and NASA Ames, helping to develop a new joint initiative for student engagement 82 | GESTAR Annual Report 2013 - 2014 for an International Genetically Engineered Machine (iGEM) Team in Synthetic Biology; this will be the first of its kind to involve a Historically Black College and University in Synthetic Biology. The iGEM program is the premier undergraduate Synthetic Biology competition. As a brand new partnership between Stanford, Brown and Spelman, the new team will be named “the StanfordBrown-Spelman iGEM team”. Students are given a kit of biological parts to use along with new parts of their own design to build biological systems and operate them in living cells. The participating students and the faculty mentor from Spelman have been identified (2-4 students), and the funding support for the project will come through NASA Ames. Student training at Spelman has begun, and research training will provided at NASA Ames in summer 2014. The project will continue through the academic year. Dr. Bell was a team member on a proposal titled “Evolutionary Innovation In Action”, submitted jointly for collaboration between Morgan State University and NASA Ames Research Center. An Astrobiology Course, Seminars, Internships and Lecture Series at Morgan State University have been proposed. The Astrobiology course will incorporate a new digital learning capability tool, the Hypothesis Browser, developed by Dr. Andrew Pohorille and Dr. Richard Keller, collaborators at NASA Ames Research Center. The Hypothesis Browser as a digital capability learning tool will support an effective student research training process. The goal is to develop a community-based system for indexing and organizing scientific papers based on hypotheses that they support or contradict. The course will be taught by an interdisciplinary team of astrobiologists from the NASA Astrobiology Institute and Minority Institutions Research Support (NAI-MIRS) Program. Students will develop a clear understanding of active and passive methods of scientific inquiry. At the conclusion of the course, students will be required to present a talk and a research paper on how the project helped them to understand how to approach research and the benefit of the Hypothesis Browser as a learning tool. A mentorship component will be included in which NASA Staff and Faculty serve as ongoing mentors throughout the project. ages with NASA Ames, the NASA center that leads astrobiology research. An aim is to try to establish some internships and postdoc positions for the AU students with current scientists at NASA Ames. Additionally, Dr. Bell was a key organizer and member of the planning team for Morehouse School of Medicine (MSM) collaboration meetings. Dr. Bell led a panel discussion with Morehouse School of Medicine Leadership; Dean/EVP of Medical School, Vice President for Research Affairs, Dean for Educational Outreach and Health Careers, Dean for Graduate Education and Dean for Educational Affairs participated on this panel. The goal was to discuss the potential for research collaborations with NASA Ames Director and MSM leadership. Dr. Bell recruited four Faculty Members for a summer 2014 sabbatical program from underrepresented institutions, in collaboration with the NAI-MIRS) Faculty Fellowship Program. MIRS scientists continue to build upon collaborations with NAI research partners with successful outcomes and numerous publications. Over 20 MIRS Faculty Fellows to date have participated in the MIRS program. Fellows continue their astrobiology research at their institutions once fellowship is completed. Also for summer 2014, Dr. Bell acted as a recruiter and collaborator for the 2014 REU International Summer Internship Program (Malaysia, Mexico and India). The Research Experience for Undergraduates (REU) provides an excellent opportunity for students to strengthen science and research literacy. Selected students for the 2014 summer internship program will conduct research in Malaysia this summer with research focus on astrobiology-related projects, climate change and sustainable agriculture among indigenous communities. Global and cultural diversity is a continued key focus of the program. Students will be selected from minority serving institutions. Native American students, Hispanic students and African-American students will jointly participate in this international research program summer 2014. The lead institution will be University of Minnesota, Dr. Michael Ceballos, Fellow MIRS Scientist and ongoing collaborator. Dr. Bell will team with Dr. Ceballos during laboratory student training and data analysis. Dr. Daniel Laughlin (sponsor: S. Canright) serves as the first Digital Media Learning Fellow in NASA’s Office of Education. He supports NASA agency level work in digital media and learning, specifically but not limited to the areas of games and digital badges as means to addressing NASA’s commitment to the Federal STEM Education Priority Area: Increase Youth and Public Engagement in STEM. The work includes curating a NASA game catalog, researching and proposing NASA Headquarters’ Office of Education guidance for games and digital badges, identifying best practices, scalable evidence based approaches, benchmarking and assessing need, gap and niche. He works with federal interagency collaborations, external partnerships and NASA’s internal games/game technology community. Dr. Laughlin continues to serve as executive secretary for the National Science and Technology Council (NSTC) interagency working group on Digital Game Technologies and as co-chair the Federal Games Working Group. NASA released Moonbase Alpha as a proof-of-concept video game through the Learning Technologies Project. Developed in collaboration with the Army Game Studio and Virtual Heroes, Inc., Dr. Laughlin led the project. The October issue of PCGamer Magazine hailed Moonbase Alpha as one of the top 50 free online games available in 2013. The game combines NASA’s lunar architecture, the state-of-the-art Unreal 3 Engine and commercial quality game design in an effort to demonstrate that a fun, inspirational and educational could be the result. Released on the commercial game distribution network Steam, Moonbase Alpha proved to be popular with both players and game critics. The game has an 80page educator’s guide to support classroom use. Dr. Laughlin completed the NASA game catalog, identifying games and game technology projects across the agency. The catalog includes 15 game projects developed by or in collaboration with NASA. The White House Office of Science and Technology Policy (OSTP) identified it as the first document to gather information on any federal agency’s game efforts. In February 2014, Dr. Bell organized a STEM Student Engagement Forum for Historically Black Colleges and Universities within the Atlanta University System (AU). The National Society for Black Engineers (NSBE), Graduate Students and Medical School Students, Chapter Presidents, Spelman College, Morehouse, Clark Atlanta University and Morehouse School of Medicine students convened to discuss their STEM projects, both research and education. Dr. Pete Worden, NASA Ames Center Director, was the guest speaker at the event. NASA Ames Chief of Staff, Karen Bradford, attended and potential partnership development projects were discussed. The goal was/is to launch potential student engagement link- GESTAR Annual Report 2013 - 2014 | 83 PRODUCTS STUDENT ENGAGEMENTS and EDUCATION/PUBLIC OUTREACH The GESTAR Maniac Talks offer the opportunity to Student Engagements “discuss and learn”. The Maniac Talks “… promote scientific interaction between young and experienced scientists in order to learn/improve/revise the knowledge of basics/fundamentals of science and scientific methods for research.” Charles Gatebe has been instrumental in hosting and maintaining this exciting series, and this year Dr. Gatebe was recognized with a Robert H. Goddard Award for his ongoing efforts. Since late May 2013, speakers have included Compton Tucker, Warren Wiscombe, Charles McClain, Lorraine Remer, David Atlas, Alexander Marshak, Josefino Comiso, John Mather, William Lau, Peter Hildebrand, Henning Leidecker and Anne Thompson, all of NASA Goddard Space Flight Center. Dr. Michael D. King of LASP, University of Colorado, Boulder, also presented a talk in July 2013. A schedule of upcoming speakers and videos of previous talks can be found on the Maniac Talk blog: http:// maniactalk.gestar.usra.edu/. Assaf Anyamba advised two students this past year. Felicia Chen (UMD) worked on Rift Valley Monitor. Margaret Glancey (JHU) was in the Masters of Public Health program and participated in a USRA Summer Internship. Her thesis was titled “Epidemiologic and Environmental Risk Factor Analysis of Rift Valley Fever Outbreaks in Southern Africa from 2008 to 2011”. Dr. Anyamba recommended Margaret for employment at the Uniformed Services University of the Health Sciences and she has since been hired. Benita Bell assisted STEM students from Georgetown University and University of Pennsylvania with acquiring summer 2014 internships with colleagues at the NIH and Johns Hopkins APL. Dr. Peter Hildebrand, retired Earth Science Division Director, presents a Manic Talk Lecture in February 2014. On June 26, 2013, Santiago Gassó attended to the final MSc exam of Kyle Dawson at North Carolina State University in Raleigh, NC. The project was entitled “A study of sea spray optical properties from multi-sensor spaceborne observations”. Prof. Nicholas Meskhidze is the thesis advisor and Dr. Gassó is a committee member. The NASA Visualization Explorer (NASA Viz) app continues to excite, educate and engage audiences through its media rich content and stories. Since the app’s launch on July, 26, 2011, it has received more than 1 million unique downloads, it continuously ranks as the #1 Earth science app in the iTunes Education Store and has been reviewed and featured in tech blogs and news websites. Charles Gatebe supervised Sreeja Nag, a PhD student at MIT, who is now in her final year at MIT. Sreeja is working on Distributed Space Missions (DSMs) for application to earth science missions. As of late May 2014, almost 300 stories have been published. The collection of stories highlight findings from all four NASA science themes—Earth, Heliophysics, Planetary, Astrophysics—and includes contributions from Science@NASA, NASA Earth Observatory and NASA’s science mission outreach teams. Through the ongoing efforts of GESTAR team members HelenNicole Kostis (NASA Viz project manager), Katie Lewis (NASA Viz user experience designer), and Kayvon Sharghi (NASA Viz editor), two new stories appear in the app each week. This year the NASA Viz software development team released the Universal version, which made the app available for all iOS devices (iPad/iPhone/iPod Touch). In order to adapt NASA Viz for the iPhone, a new user interface was designed and developed. In addition, two more updates were released to enhance features for classroom use, improve the user interface and to address bug fixes. A newly designed NASA Viz website is currently in progress 84 | GESTAR Annual Report 2013 - 2014 Benita Bell continues to mentor K-12 STEM Early College Students (9th-10th grade) at NC A&T State University. The goal is to continue to engage students in NASA learning technologies as well as increase the pipeline and recruitment of students pursuing STEM careers. Margaret Hurwitz has been serving as an AAAS Science & Technology Policy Fellow since September 2013, working in the Middle East Bureau at USAID in Washington, DC. and will launch in summer 2014. During the next year, the team is planning on releasing updates with push notifications, icloud capabilities and High-Definition content. As an outcome of the NASA Viz Teacher Project: NASA Science & Technology in the Classroom (2012-2013), the team is currently working with the Office of Education (led by Dr. Robert Gabrys) on developing content and features to address the Next Generation Science Standards and to assist teachers in their classroom environment. Matthew Kowalewski mentored two Morgan State University undergraduates and recently published a short article about their activities in the Spring 2014 GESTAR newsletter. Each student made progress in their respective projects and learned about various aspects of instrument and lab engineering. Matthew Kowalewski participated in the Linton Springs Elementary School Science Fair, Eldersburg, MD in January as a community scientist judge. Students from all grades participated in the event and had the opportunity to discuss the results of their research with him and other community scientists. Tom Kucsera worked with three NASA-sponsored summer students (Mariel Friberg, Phillip Stratton, and Zachary Fasnacht) and a post-summer GESTAR-sponsored student though the joint cooperative agreement with Morgan State, Amon Dow. Mr. Kucsera provided help and assistance with their research projects. Student training on the use of the MINX data processing tool and MISR data products was provided. Projects included work with MISR satellite data products, GOCART and NU-WRF modeling results analyses. At the conclusion of the summer, posters were generated that highlighted the work performed. Priscilla Mohammed supported a summer intern who contributed to the SMAP RFI algorithm performance evaluation by developing Matlab code to evaluate RFI detector performance using radiometer flight model data from thermal vacuum. With guidance from Dr. Mohammed, the intern wrote code to produce receiver operating curves for each of the RFI detectors in the L1B TB algorithm based on different RFI types as inputs. As part of the Intensive Summer School in Computing for Environmental Sciences (ISSCENS), Cecile Rousseaux supervised an intern, Laura Hamrick, from June – August 2013. In addition to working with a team of contributing writers at NASA Goddard Space Flight Center, Kayvon Sharghi launched a student writing internship in partnership with the University of California, Santa Cruz, Science Communication Program. Kayvon managed two graduate students over 24 weeks, each contributing 12 stories to the NASA Viz app. On July 18 and 25, 2013, Jason Sippel gave presentations on NASA’s hurricane research program was given to K-12 students involved in the Baltimore SEMAA program at Morgan State University. Following the presentation, the students were given an activity to work through that involved using data from the ongoing HS3 field campaign. In addition, Jason Sippel worked with NASA Ames Research Center and the Baltimore SEMAA program to organize a SEMAA field trip to NASAs Wallops Flight Facility during the HS3 Field Campaign. Students first visited the Wallops Visitor Center and then went to the HS3 hangar, where they were able to observe real-time HS3 operations, see a Global Hawk up-close, and talk to mission scientists about hurricane research. Kristen Weaver spoke to Silver Spring International Middle School Green Team (~30 students) in Silver Spring, MD, about the GPM mission (including showing “Our Wet Wide World”), and the importance of measuring precipitation from space. She showed them the rain gauge that will soon be installed at their school and talked about citizen science measurements and what their role can be. Kristen Weaver participated in STEM Activity Series with students at the George B. Thomas Learning Academy Saturday School at Wheaton High School, Silver Spring, MD. Activities included making and testing rain gauges and discussing how precipitation measurements are made from the ground, learning about how the GPM Core Observatory measures precipitation from space, GESTAR Annual Report 2013 - 2014 | 85 making an edible model of the satellite, and conducting an experiment about the amount precipitation needed to create a landslide in different types of sand and soil. The series culminated in a poster contest for students to show what they learned, and a follow-up field trip to Goddard Space Flight Center is planned. Helen-Nicole Kostis is also a Committee Member of the NASA Information Science & Technology Colloquium Series. As part of her committee duties, she invites and hosts leaders from the fields of computer graphics and visualization. On April 23, 2014, she hosted Ariel Shamir (Disney Research & MIT). Education/Public Outreach Matthew Kowalewski participated in the DISCOVER-AQ public outreach event while on deployment to Houston, TX. During the event, over 300 fifth graders visited the NASA Ellington Airfield where Mr. Kowalewski gave tutorials on the B200 aircraft and the GCAS instrument operations and science. Benita Bell organized the STEM Student Engagement Forum for Historically Black Colleges and Universities within the Atlanta University System (AU). The National Society for Black Engineers (NSBE), Graduate Students and Medical School Students, Chapter Presidents, Spelman College, Morehouse, Clark Atlanta University and Morehouse School of Medicine students convened to discuss their STEM projects, both research and education. Dr. Pete Worden, NASA Ames Center Director was the guest speaker at the event. NASA Ames Chief of Staff, Karen Bradford, also attended and potential partnership development projects were discussed. The ongoing goal is to launch potential student engagement links with NASA Ames, which is the center leading astrobiology research. Another goal is to establish internships and post-doc positions for AU students with current scientists at NASA Ames. Working with Steve Graham and Winnie Humberson, Edward Celarier conducted presentations in front of the NASA Hyperwall at the National American Chemical Society Convention, New Orleans, LA. The first evening was devoted to university students, and the Hyperwall presentations increased awareness of the chemistry-related activities occurring within NASA. Gabrielle De Lannoy was a panel member in a site-review of NOAA-CRESST, College Park, MD, a cooperative institute, and she educated students about Earth sciences research. Gabrielle De Lannoy participated in the USA Science and Engineering Festival, Washington, DC, as a staff member of the Earth Science area. Kristen Weaver hosted a table at this festival, sharing the GPM mission’s science and technology with the public. Helen-Nicole Kostis served in the American Alliance of Museums Media and Technology MUSE 2014 Awards Jury Team for Interpretive Installations. Helen-Nicole also served on the Association of Computing Machinery (ACM) SIGGRAPH Jury Team to select content for the upcoming conference in Vancouver 2014. She participated in the Jury team for the General Submissions (talks, panels, courses, studio, emerging technologies). 86 | GESTAR Annual Report 2013 - 2014 Student interns at Goddard had designed and built a robot capable of travelling autonomously in polar regions. In summer 2013, Matt Radcliff traveled to Greenland to film this robot on its first polar expedition to the center of Greenland’s ice sheet. GROVER, the Goddard Rover, carried a ground-penetrating radar to study the accumulation of snow on the ice sheet with particular attention to the ice layer left after the unusual melt in summer of 2012. Matt filmed the rover and the two graduate students who were working on the project. Adrian Southard gave a talk on MOMA-related work at Catholic University, Washington, DC, titled “Use of a MEMS Pirani pressure gauge to protect operation of the Mars Organic Mass Analyzer mass spectrometer: One of many engineering challenges associated with searching for signs of past or present life on Mars”. Erica McGrath-Spangler and Teppei Yasunari participated as judges for the Outstanding Student Paper Awards at the 2013 AGU Fall Meeting, San Francisco, CA. The purpose of the judging is to provide constructive criticism to students in order to improve their presentation skills. Kristen Weaver assisted with hands-on activities for GPM Family Day, held at Goddard Space Flight Center. Over 300 people associated with GPM and their friends and family members came to the Goddard Visitor Center for a briefing about the mission science and engineering, to visit the activities tables (freshwater resources, the water cycle, and making paper and edible models of the Core Observatory), and for a tour of Building 28 to see the testing facilities and the satellite itself before it was sent to Japan for its launch in February. Kristen Weaver was a key participant in the Extreme Weather Teacher Workshop, Greenbelt, MD. Jointly with the Magnetospheric Multiscale Mission, the GPM team held three teacher workshops about Extreme Weather on Earth and in space. Teach- EARTH DAY at Union Station, April 21-22, 2014 Allison Leidner worked with Winnie Humberson, the coordinator for this large-scale event, at the NASA booth and the USRA booth for Earth Day at Union Station, Washington, DC, where Dr. Leidner also gave a Hyperwall talk titled “Earth’s Biodiversity: The View from Space”. Edward Celarier gave a Hyperwall presentation, speaking about nitrogen dioxide measurements from OMI, and the importance of making these measurements. Working with USRA’s Jim Lochner and Beth Maginnis, Erica McGrath-Spangler engaged with the public by participating in USRA’s “What on Earth” exhibit, where select images from Earth were shown and discussing with the public what those images could be. Kristen Weaver hosted a table at Earth Day at Union Station, sharing information about the GPM mission science and technology. GST staff on hand to support the multiple components of this event included Steve Graham, Heather Hanson, Marit Jentoft-Nilsen, Mark Malanoski, Debbi McLean, Kevin Miller, Sally Bensusen, Ryan Barker, and Cindy Trapp, who worked at several of the hands-on activities and provided technical and logistical support. Kevin Miller designed several communication products, and he and Heather Hanson created the Passport Activity Guide. ers learned about the science behind GPM and MMS, and the educational materials associated with each. The first workshop was for Montgomery County, MD teachers (Nov); the second one was for participants in the STEM Pipeline through the GSFC’s Office of Education and included teachers from various districts in Maryland and the District of Columbia (Dec); and the third workshop was focused on teachers from Prince George’s and Howard Counties (Jan). Workshop materials are now available as online professional development for educators around the country. Kristen Weaver hosted a table at the 25th annual Rockville Science Day at Montgomery College, Rockville, MD. Activities included a water cycle model, precipitation towers, and the chance for kids to assemble a model of the GPM Core Observatory satellite. In collaboration with the E/PO teams from other missions at Goddard (MMS, LRO and SDO), Kristen Weaver hosted a kids activity table at AwesomeCon, Washington, D.C. Yaping Zhou shadowed a high school science teacher from Baltimore County, MD in July 2013. During the one-week program, Dr. Zhou helped the teacher learn about the day-to-day work of a research scientist, become familiar with many existing online NASA educational tools that can be used in the classroom, and, after attending a seminar by Dr. Warren Wiscombe (Code 613), helped her identify and develop a missing piece in the current Maryland high school Earth science curriculum: global warming and the cryosphere. GESTAR Annual Report 2013 - 2014 | 87 AWARDS AWARDS & RECOGNITION producing improved Level 2 and Level 3 aerosol and cloud products.” In late May 2013, Ginger Butcher, Eric Nash and Edward Celarier (sponsor: N. Krotkov) won a 2013 Communicator Award for Excellence in Print and Design by the International Academy of the Visual Arts for their work on the poster “The Ozone Hole: Over 30 Years of NASA Observations”. With over 6000 entries received in 2013 from the US and around the world, the Communicator Awards is the largest and most competitive awards program honoring the creative excellence for communications professionals. The poster employs a stunning infographic format to highlight NASA’s ozone hole observations between 1979 to 2012 from a variety of NASA missions including Aura and Suomi NPP. Kerry Meyer also was recognized for Best First-Authored Paper*: “For fundamental contributions to understanding the effect of abovecloud absorbing aerosols on the radiative forcing of coupled aerosol-cloud layers.” *Meyer, K., S. Platnick, L. Oreopoulos, and D. M. Lee (2013), Estimating the direct radiative effect of absorbing aerosols overlying marine boundary layer clouds in the southeast Atlantic using MODIS and CALIOP, J. Geophys. Res., doi:10.1002/jgrd.50449. In June 2013, at Goddard’s Earth Sciences - Atmospheres (Code 610) awards ceremony, Valentina Aquila (sponsor: P. Colarco) was recognized for Outstanding Performance – Science: “For significant advances in our understanding of the ozone response to strong tropical volcanic eruption.” Mircea Grecu (sponsor: R. Meneghini) was recognized for Outstanding Performance – Science: “For successful completion of the “at launch” GPM combined radar-radiometer algorithm, from concept to final software, using innovative and original approaches.” In December 2013, Paolo de Matthaeis and his sponsor David Le Vine (NASA GSFC) were recipients of an award from NASA Headquarters, a Group Achievement Award presented to the AQ Launch, Early Orbit Ops, and Commissioning Team “for outstanding achievement in launching the AQ/SAC-D Observatory and commissioning the Aquarius instrument for unprecedented global sea surface salinity observations.” As a member of the Aquarius Science Calibration and Validation Team, Paolo de Matthaeis also received a NASA Award, for “Outstanding team efforts in calibrating and validating Aquarius science products in fulfillment of mission science objectives.” In December 2013, Charles Malespin (sponsor: P. Mahaffy) received an award from the Director of the Solar System Exploration Directorate of NASA Goddard Space Flight Center “in recognition of your dedication and service to the NASA community”. This award was also presented to other members of the SAM team for their work on the Curiosity mission. Also, Charles Malespin received an award from NASA Headquarters, a Group Achievement Award as part of the MSL SAM instrument development and Science Team, for “Exceptional achievement defining SAM’s scientific goals and requirements, developing the instrument suite and investigation, and operating SAM successfully on Mars.” In December 2013, the FDA Center for Food Safety and Applied Nutrition awarded Assaf Anyamba (sponsor: C. Tucker) and his team the 2013 FDA Leveraging/Collaboration Award as members of the Geospatial Produce Risk Assessment Modeling Team for exceptional achievement and collaboration to develop a geospatial risk assessment model to predict environmental produce contamination events. The FDA Leveraging/Collaboration Award recognizes an individual’s or company’s efforts to collaborate with other government or industry groups to advance the FDA’s public health mission. Dr. Anyamba’s project, titled “Geospatial Risk Assessment Model of environmental contamination of produce by Enteric Pathogens”, aims to develop a geospatial, environmental and climatic database and model that will enable CFSAN to understand, characterize and predict the likelihood, amount, time, and location of environmental contamination of produce by enteric pathogens (E. coli, Salmonella) in the continental U.S. At NASA Goddard’s Mesoscale Atmospheric Processes Laboratory (Code 612) awards ceremony, three GESTAR scientists received recognition. Two scientists were recognized for Exceptional Scientific Achievement: Xiaowen Li (sponsor: W. K. Tao), “for research using sophisticated microphysical processes to improve our understanding of the interactive processes between cloud, precipitation and aerosol”, and Jainn J. (Roger) Shi (sponsor: W. K. Tao), “for research using WRF with Goddard Radiative and Goddard Microphysical schemes to improve our understanding of direct and indirect aerosol-precipitation interactive processes.” Xiping Zeng (sponsor: W. K. Tao) was recognized for Best Scientific Paper: “A Comparison of the Water Budgets between Clouds from AMMA and TWP-ICE” (2013), Zeng, X., W.-K. Tao, S. Powell, R. Houze, P. Cieselski, N. Guy, H. Pierce, and T. Matsui, Journal of Atmospheric Sciences, 70, 487-503. At NASA Goddard’s Climate and Radiation Laboratory (Code 613) awards ceremony, four GESTAR scientists were recognized for their achievements: For Outstanding Technical Support/Achievement: Benjamin Marchant (sponsor: S. Platnick), Kerry Meyer (sponsor: S. Platnick), Falguni Patadia (sponsor: R. Levy), and Andrew Sayer (sponsor: N. C. Hsu) were among those who received a Team Award given to the MODIS Collection 6 Team: “For sustained effort leading to the successful delivery of the MODIS Collection 6 algorithms and codes 88 | GESTAR Annual Report 2013 - 2014 At Goddard’s GMAO Peer Awards Ceremony, Deepthi Achuthavarier (sponsor: S. Schubert) received the GMAO Peer Award for Scientific Achievement, “For contributing to our understanding of decadal climate variability in the North Pacific and its implications for improving the GEOS-5 coupled model.” NASA Goddard’s Scientific Visualization Studio was awarded first place in the video category of the 2013 International Science and Engineering Visualization Challenge for its 4-minute entry titled “Excerpt from Dynamic Earth”. In the full-length planetarium film “Dynamic Earth”, which has been shown worldwide, the visualizers conveyed the flow of solar wind and its effect on the atmosphere and ocean currents. The original video was created by Greg Shirah, Tom Bridgman, Horace Mitchell, Lori Perkins, Cindy Starr, Ernie Wright, Trent Schindler, and Stuart Snodgrass. Winnie Humberson and Steve Graham of GST (Global Science & Technology, Inc.) received a letter of appreciation from NASA Administrator Charles Bolden for their work at the 2014 GEO Plenary and Ministerial Summit. His letter was in response to a letter he received from Acting NOAA Administrator Dr. Kathryn Sullivan, recognizing NASA’s efforts in Geneva. In particular, they were recognized “for their tireless work to produce an outstanding USGEO exhibit.” Winnie stated that their “support consisted of organizing exhibits, organizing real time coordination for Hyperwall presentations, and networking with the local mission office for press, VIPs and students visiting the USGEO exhibit.” In May 2014, Charles Gatebe (sponsor: C. Ichoku) received a 2013 Robert H. Goddard Award for Outreach in recognition “for founding, implementing, and continuing to lead the spectacularly successful “Maniac” series of talks at NASA Goddard”. In May 2014, fourteen GESTAR members were recognized with an Excellence in GESTAR Mission Achievement award. Tom Bridgman, Trent Schindler, Cindy Starr, and Ernie Wright (code 606.4, sponsor: H. Mitchell) were recognized for their roles on the NASA Scientific Visualization Studio (SVS) team awarded first place in the video category of the 2013 International Science and Engineering Visualization Challenge, a highly prestigious competition sponsored jointly by the journal Science and the NSF. The winning entry is an excerpt from the planetarium film “Dynamic Earth” and shows how the particles from solar storms bombard Earth and how the sun’s heat energy drives Earth’s climate and weather. Congratulatory emails to SVS Director Horace Mitchell on the team’s behalf came from NASA Earth Science Division Director Michael Freilich and NASA Goddard Space Flight Center Director Chris Scolese. Freilich noted, “I personally use and benefit greatly from your products, which are always of the highest scientific and aesthetic quality, and which are easily discoverable and accessible through your site.” Scolese added, “Your products inspire many to pursue careers in science and engineering and to learn about our Earth and the universe.” Ludovic Brucker (code 615, sponsor L. Koenig): For his science contribution and his efforts in abiding by GESTAR administrative requirements. Dr. Brucker has shown incredible leadership and scientific achievement in all areas of his research but in particular his work with Aquarius data over the Polar Regions. He has created products to easily enable the use of the data by the community while simultaneously investigating new and innovative ways to use the data to better understand changes over both land and sea ice. He is a leading expert in Microwave Remote Sensing at shorter wavelengths and the work he has done over the past year establishes him as the field’s leading expert in utilizing Aquarius data, especially over land ice. The data sets Dr. Brucker has created are being housed by the National Snow and Ice data Center. Tom Eck (code 618, sponsor B. Holben): For sustained outstanding performance in the AERONET program and exemplary publication record of well-cited peer reviewed scientific papers. The AERONET program is the world’s largest network of ground-based sensors for aerosols. On a day-to-day basis, Mr. Eck keeps track of everything that is happening with the AERONET stations (approximately 400 sites in 50 countries on all seven continents). He is fondly referred to as the AERONET “operations scientist” by his colleagues and the aerosol community. Mr. Eck played a critical role in the 1998 paper which was used to introduce AERONET; that paper has now passed an impressive academic milestone: more than 2100 times as a citation, making it one of the most referenced papers in contemporary earth science. He has an h-index of 52, which is considered AGU Fellow grade. GESTAR Annual Report 2013 - 2014 | 89 ACRONYMS Dongchul Kim (code 614, sponsor M. Chin): For numerous publications, including two first author papers, and multiple research presentations at AGU, AMS and the AeroCom workshop. His major research area is the atmospheric dust life cycle and its environmental/climate impacts through modeling and data analysis. His work includes using a new method to extract dust optical properties from AERONET observations, developing and evaluating a new dust source function for global model simulations that is based on satellite observations of NDVI, and diagnosing multiple global model diversity on dust simulations over North Africa and North Atlantic. More recently, he has become involved in the development of dust simulation capability in the NASA Unified WRF (NU-WRF) model in order to simulate mesoscale processes of dust. Hyokyung Kim (code 612, sponsor R. Meneghini): For an outstanding job in developing a spaceborne radar simulator to test operational and experimental algorithms for the Dual-Frequency Precipitation Radar (DPR) on the GPM satellite. This work encompasses many tasks: incorporating atmospheric and surface model data into the program, making use of scattering computations from snow, rain and mixed phase particles and configuring the results to serve as level 1 input to the algorithms. Lok Lamsal (code 614, sponsor N. Krotkov): For exceptional and highly productive research, and his invaluable participation as part of the NASA OMI team under Drs. Joanna Joiner and Nickolay Krotkov. Young-Kwon Lim (code 610.1, sponsor S. Schubert): For his contributions to the improved simulation of tropical storm/cyclone at high-spatial resolution in the global climate model; for becoming a recognized expert in addressing issues related to the simulation of tropical storms with high-resolution global models; and for distinguishing himself for outstanding productivity in journal publications and professional presentations. Cynthia Randles (code 614, sponsor P. Colarco): For her productivity, and her participation in publications. She has been the lead author on two recent papers, and coauthored several others. One of these papers explored the aerosol semi-direct effect in GEOS-5, one of the first papers to explore the GOCART aerosols in GEOS-5 and focus on aerosol-cloud effects. A second paper came out of her leadership in the AeroCom community, where she led a study exploring the sensitivity of computed radiative fluxes to heterogeneity in radiative transfer schemes. This latter study involved coordinating model simulations by a number of international research groups. Andy Sayer (code 613, sponsor N.C. Hsu): For his exceptional role in, and dedication to, the development of the MODIS Deep Blue Aerosol data set collection six; for his involvement in the development of new aerosol optical depth data sets from SeaWiFS; for his ability to work on multiple problems, for his altruistic team player role, and for his outstanding productivity. Dr. Sayer has just reached his twentieth peer-reviewed publication since GESTAR’s inception (of these 20, six are first-author articles). Amy Houghton (staff): For her outstanding dedication to GESTAR in her capacity as Technical Editor. Since GESTAR’s inception, she has supervised the production and release of 12 quarterly reports, in addition to progress reports and annual reports, always delivering products of great quality in a timely manner. Julie Smith (Dalnekoff) (staff): For her support regarding all visa-related topics and continuing support of GESTAR foreign nationals with Green Card applications and other issues. She continues to be very helpful with quick and clear answers, and there have been no delays in processing visas. 90 | GESTAR Annual Report 2013 - 2014 ACAM Airborne Compact Atmospheric Mapper ACCRI Aviation Climate Change Research Initiative ACMAP Atmospheric Composition: Modeling and Analysis Program ADAS Atmospheric Data Assimilation System AERONET Aerosol Robotic Network AGCM Atmospheric General Circulation Model AGU American Geophysical Union AIRS Atmospheric InfraRed Sounder AMOC Atlantic Meridional Overturning Circulation AMS American Meteorological Society AMSR-E Advanced Microwave Scanning Radiometer for EOS AOD Aerosol Optical Depth AOGCM Atmosphere-Ocean General Circulation Model AO Arctic Oscillation AOT Aerosol Optical Thickness ARSET Applied Remote Sensing Training program ASCENDS Active Sensing of C02 Emissions over Nights, Days and Seasons ATMS Advanced Technology Microwave Sounder ATTREX Airborne Tropical Tropopause Experiment AVDC Aura Validation Data Center AVHRR Advanced Very High Resolution Radiometer BACAR BRDF, Albedo, Cloud and Aerosol Radiometer BLSNBlowing Snow CAI Cloud and Aerosol Instrument CALIOP Cloud-Aerosol Lidar with Orthogonal Polarization CALIPSO Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation CCMI Chemistry-Climate Model Initiative CDA Cloud Data Assimilation CDC Center for Disease Control CERES Clouds and Earth Radiant Energy System CEOS Committee on Earth Observation Satellites CFH Cryogenic Frostpoint Hygrometer CHORI Children’s Hospital and Research Center, Oakland CIL Conceptual Imaging Lab CLIVAR Climate Variability and Predictability project CLM4 Community Land Model version 4 CMAVE Center for Medical, Agricultural, and Veterinary Entomology CME Coronal Mass Ejection CMIP Coupled Model Intercomparison Project CMS Content Management System COP 19 UN Framework Convention on Climate Change Conference of Parties COSP CFMIP Observation Simulator Package COT Cloud Optical Thickness CRMCloud-Resolving Model CVS Concurrent Versions System DART (NCAR) Data Assimilation Research Testbed DAS Data Assimilation System DISCOVER-AQ Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality GESTAR Annual Report 2013 - 2014 | 91 DOD Department of Defense DOE Department of Energy DFR Differential Frequency Ratio DPR Dual-frequency Participation Radar DRAGON Distributed Regional Aerosol Gridded Observation Network DSD rainDrop Size Distribution DYNAMO Dynamics of the Madden Julian Oscillation eMAS Enhanced MODIS Airborne Simulator EA/WR East Atlantic/West Russia ECCO Estimation of the Circulation and Climate of the Ocean ECMWF European Centre for Medium-Range Weather Forecast EMAS Enhanced MODIS Airborne Simulator EnKF Ensemble Kalman Filter ENSO El Niño/Southern Oscillation E/POEducation/Public Outreach EPIC Earth Polychromatic Imaging Camera EPOD Earth Science Picture of the Day ESA European Space Agency FAS Foreign Agricultural Service FDA Food and Drug Administration FOV Field of View G-LiHT Goddard’s Lidar, Hyperspectral and Thermal airborne imager GCAS GEOCAPE Airborne Simulator GCE Goddard Cumulus Ensemble GCPEx GPM Cold-season Precipitation Experiment GCRP Global Change Research Program GEO Group of Earth Observations GEO-CAPE GEOstationary Coastal and Air Pollution Events GEOS-5 Goddard Earth Observing System Version 5 GEOS-AOCCM GEOS Coupled Atmosphere Ocean Chemistry Climate Model GEOS-CCM GEOS Chemistry Climate Model GEOSS Global Earth Observation System of Systems GESTAR Goddard Earth Sciences Technology and Research GEWEX Global Energy Water Cycle Experiment GIMMS Global Inventory Monitoring and Modeling Systems GLS-IMP Global Land Survey and Impervious Mapping Project GLOWASIS Global Water Scarcity Information Service GMAO Global Modeling and Assimilation Office GMI GPM Microwave Imager GOCART Goddard Chemistry Aerosol Radiation and Transport GOES-R Geostationary Operational Environmental Satellite-R GOSAT Greenhouse Gases Observing Satellite GOSWIM Goddard Snow Impurity Module GPM Global Precipitation Measurement GRACE Gravity Recovery and Climate Experiment GROVER Greenland ROVER GRUAN GCOS Reference Upper Air Network GSDSU Goddard Satellite Data Simulation Unit 92 | GESTAR Annual Report 2013 - 2014 GSFC Goddard Space Flight Center GWC Global Water Cycle GWSP Global Water System Project HIWRAP High-Altitude Imaging Wind and Rain Airborne Profiler HS3 Hurricane and Severe Storm Sentinel HSegHierarchal Segmentation HyspIRI Hyperspectral Infrared Imager IBEX Interstellar Boundary Explorer ICARTT International Consortium for Atmospheric Research on Transport & Transformation ICESat Ice, Cloud, and land Elevation Satellite iGEM International Genetically Engineered Machine IGARSS International Geoscience and Remote Sensing Symposium IGPO International GEWEX Project Office IGWCO Integrated Global Water Cycle Observations InOMN International Observe the Moon Night IPCC Intergovernmental Panel on Climate Change IRAD Internal Research and Development Program IRIS Interface Region Imaging Spectrograph JAXA Japan Aerospace Exploration Agency JCSDA Joint Center for Satellite Data Assimilation JPL Jet Propulsion Laboratory JPSS Joint Polar Satellite System JSC Joint Scientific Committee JWST James Webb Space Telescope KSC Kennedy Space Center LCLUC Land Cover/Land Use Change LA-DAS Land and Atmosphere Data Assimilation System LDAS Land Data Assimilation System LDCM Landsat Data Continuity Mission LRO Lunar Reconnaissance Orbiter LROC Lunar Reconnaissance Orbiter Camera LST Land surface Skin Temperature LVIS Land, Vegetation and Ice Sensor MABEL Multiple Altimeter Beam Experimental Lidar MAGIC Marine ARM GPCI Investigation of Clouds MAIAC Multi-Angle Implementation of Atmospheric Correction MAVEN Mars Atmosphere and Volatile Evolution Mission MC3E Middle Latitude Continental Convective Clouds Experiment MEaSUREs Making Earth Science data records for Use in Research for Earth Science MERRA Modern Era Retrospective-Analysis for Research and Applications MFD Moisture Flux Divergence MHS Microwave Humidity Sounder MISR Multi-angle Imaging SpectroRadiometer MJOMadden-Julian Oscillation MLS Microwave Limb Sounder MMF Multi-scale Modeling Framework MMS Magnetospheric Multiscale Mission MODIS Moderate Resolution Imaging Spectroradiometer MOMA Mars Organic Molecule Analyzer GESTAR Annual Report 2013 - 2014 | 93 MOPITT Measurements of Pollution in the Troposphere MSL Mars Science Laboratory NAI NASA Astrobiology Institute NAI-MIRS NASA Astrobiology Institute Minority Institutions Research Support Program NASA Viz NASA Visualization Explorer app NASM National Air and Space Museum NAWP North American Water Project NCA National Climate Assessment NCAR National Center for Atmospheric Research NCCS NASA Center for Climate Simulation NCEP National Centers for Environmental Prediction NDACC Network for the Detection of Atmospheric Composition Change NDVI Normalized Difference Vegetation Index NEWS NASA Energy and Water Cycle Studies NOAA National Oceanic and Atmospheric Administration NOBM NASA Ocean Biogeochemical Model NPP NPOESS Preparatory Project NPP OMPS NPOESS Preparatory Project’s Ozone Mapping Profiler Suite NSIDC National Snow and Ice Data Center NSTC National Science and Technology Council NU-WRF NASA Unified Weather Research and Forecasting NUBF Non-Uniform Beam Filling OASIS Organics Analyzer for Sampling Icy Surfaces OCO-2 Orbiting Carbon Observatory-2 ODS Ozone Depleting Substances OIBOperation IceBridge OLR Outgoing Longwave Radiation OMAERUV OMI/Aura level-2 near UV Aerosol data product OMI Ozone Monitoring Instrument OSIRIS-REx Origins-Spectral Interpretation-Resource Identification Security Regolith Explorer OSSE Observing System Simulation Experiments OSTP Office of Science and Technology Policy (at the White House) PBL Planetary Boundary Layer PDO Pacific Decadal Oscillation PDV Pacific Decadal Variability PIA Path Integrated Attenuation PRESTORM Preliminary Regional Experiment for STORM PSD Particle Size Distribution QBO Quasi-Biannual Oscillation RBSP Radiation Belt Storm Probes RCDL Radiometric Calibration and Development Laboratory REU Research Experience for Undergraduates RFI Radio Frequency Interference RMSE Root Mean Square Error RROxiTT Remote Robotic Oxidizer Transfer Test SAM Sample Analysis at Mars SBM Spectral Bin Microphysics SDO Solar Dynamics Observatory SDSU Satellite Data Simulation Unit 94 | GESTAR Annual Report 2013 - 2014 SEAC4RS Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys SEMAA Science Engineering Mathematics and Aerospace Academy SJI Slit-Jaw Imager SMAP Soil Moisture Active/Passive SMOS Soil Moisture and Ocean Salinity SNOTELSnowpack Telemetry SOS Science on a Sphere SPARC Stratospheric Processes And their Role in Climate SRT Surface Reference Technique SSG Scientific Steering Group SST Sea Surface Temperature STEStratosphere-Troposphere Exchange STEM Science, Technology, Engineering and Mathematics SVS Scientific Visualization Studio TAGSAM Touch and Go Surface Acquisition Mechanism TCTropical Cyclone TMI TRMM Microwave Imager TOA Top of the Atmosphere TOMS Total Ozone Mapping Spectrometer TRMM Tropical Rainfall Measuring Mission TWINS Two Wide-angle Imaging Neutral-atom Spectrometers TWP-ICE Tropical Warm Pool-International Cloud Experiment USDA U.S. Department of Agriculture UVCDAT Ultra-scale Visualization for Climate model Data Analysis VIIRS Visible Infrared Imager Radiometer Suite VLIDORT Vector linearized radiative transfer model WCRP World Climate Research Program W-E-FWater-Energy-Food WFIRST Wide-Field Infrared Survey Telescope WRF Weather Research and Forecast YHS Young Hydrologic Society GESTAR Annual Report 2013 - 2014 | 95 7178 Columbia Gateway Drive 410-730-2656 www.usra.edu www.gestar.usra.edu