Wave climate and coastal circulation forecasts For public Use

WaveForUs:
Wave climate and coastal
circulation forecasts For public Use
A PILOT SYSTEM FOR THE DEVELOPMENT AND DELIVERY OF DAILY WAVE AND CIRCULATION
FORECASTS FOR PUBLIC AND EMERGENCY USE IN THE THERMAIKOS GULF
Yannis N. Krestenitis, Theofanis Karambas, Yannis Androulidakis,
Katerina Kombiadou, Christos Makris, Vassilis Baltikas, Giolanta Kalantzi
Laboratory of Maritime Engineering & Maritime Works, School of Civil Engineering,
Aristotle University of Thessaloniki, Greece
Project Objectives:
q  Development of a state-of-the-art
wave, coastal circulation and storm
surge forecast system for the area of
the Thermaikos gulf
q  Broadcasting of 3-day forecasts via
television and web applications
q  Dissemination of results that are
directly exploitable by the users
q  Results focused on areas of interest
(aquacultures, protected areas)
Dissemination of forecasts:
q  Television broadcasts
q  Geographic Information
System (GIS) web applications
q  Internet accessibility of digital
maps
http://wave4us.web.auth.gr/
Forecasting system:
q  Meteorological model: Weather
Research and Forecasting model
with the Advanced Research
dynamic solver (WRF-ARW)
q  Wave model: WaveWatch-III
(WW-III)
q  Coastal circulation model:
Princeton Ocean Model (POM)
q  Storm surge model: High
Resolution Storm Surge model
(HRSS)
Application Domains:
q  Mediterranean Sea (Domain 1) 0.15°x0.15°(~15km)
q  Aegean Sea (Domain 2) 0.05°x0.05°(~5km)
q  Thermaikos Gulf (Domain 3) 0.016°x0.016°(~1.7km)
Application Domains:
q  Mediterranean Sea (Domain 1) 0.15°x0.15°(~15km)
q  Aegean Sea (Domain 2) 0.05°x0.05°(~5km)
q  Thermaikos Gulf (Domain 3) 0.016°x0.016°(~1.7km)
Model
Domains
WW-III
2,3
POM
3
HRSS
1,2,3
Forcing
WRFARW
Boundary
Conditions
Coupling
2à3
SLH from HRSS
myOcean
Stokes drift
from WW-III
1à2, 2à3
Meteorological model: WRF-ARW
WRF-ARW produces 3-day forecasts
(72hrs) and disseminates to the sea
state forecast models hourly outputs
of: accumulated precipitation, mean
pressure at sea level, temperature,
specific and relative humidity at 2m, u
and v wind components at 10m, short
and long wave radiation fluxes at the
surface and latent and sensible heat
fluxes at the surface.
http://meteo.geo.auth.gr/index.php?
option=com_content&view=article&id=
80&lang=en&Itemid=61
•  2-dimensional hydrodynamic model
•  wind fields and pressure gradients
•  Navier-Stokes equations
•  Calibration and evaluation with in situ
measurements and coastal altimetry (Hindcasting)
•  Daily sea level forecast
•  Development of storm surge alert system
•  Specification of environmental,
socioeconomic and touristic hotspots
Krestenitis et al., 2010 (Journal of Coastal
Conservation)
Storm surge model: HRSS
AVISO products over
Mediterranean Sea
(Domain 1)
Jason 1 (purple) and 2
(red) tracks over Aegean
Sea (Domain 2)
0.8
Sea level Alteration
0.6
Model output
0.4
0.2
0
0
10
20
30
-0.2
-0.4
days
40
50
60
Wave model: WW-III
The WaveWatch III (WW-III), version 3.14 (Tolman,
2009) numerical model is a third generation
spectral model for the simulation and prognosis of
wind-generated wave fields (NCEP).
The governing equations of WW-III include
refraction and straining of the wave field due to
temporal and spatial variations of the mean water
depth and of the mean current.
Parameterizations of physical processes (source
terms) include wave growth and decay due to the
actions of wind, nonlinear resonant interactions,
dissipation (`whitecapping'), bottom friction, surfbreaking (i.e. depth-induced breaking) and
scattering due to wave-bottom interactions.
Circulation model: POM
POM (Blumberg and Mellor, 1987) is a three-dimensional, free surface,
terrain following model that includes a higher order turbulence closure
scheme (Mellor and Yamada, 1982).
Input from WRF-ARW:
Wind fields, SLP, atmospheric SST, LWR, SWR, relative humidity,
precipitation, sensible heat fluxes.
Riverine freshwater fluxes:
Axios, Aliakmonas and Loudias (hydroelectric power stations data)
Comparison of
satellite and model
SST from 2012 run:
Initial conditions:
Homogenous (T=13ºC,
S=35, u=v=w=0,
SLH=0)
error: 0.43±1.32ºC
error: 0.77±1.17ºC
error: 0.65±1.11ºC
error: 0.82±1.20ºC
Boundary conditions:
Radiation (no coupling
with myOcean)
Satellite data 1/16º
Model output 1/60º
Circulation model: POM
POM (Blumberg and Mellor, 1987) is a three-dimensional, free surface,
terrain following model that includes a higher order turbulence closure
scheme (Mellor and Yamada, 1982).
Input from WRF-ARW:
Wind fields, SLP, atmospheric SST, LWR, SWR, relative humidity,
precipitation, sensible heat fluxes.
Riverine freshwater fluxes:
Axios, Aliakmonas and Loudias (hydroelectric power stations data)
Comparison of
satellite and model
SST from 2013 run
[01/03-10/06/2013]:
error: 0.88±3.8ºC
error: 0.94±4.8ºC
error: 0.78±3.5ºC
error: 0.78±3.5ºC
Initial conditions:
myOcean
Boundary conditions:
myOcean
Satellite data 1/16º
Model output 1/60º
Dissemination of Wave4us products
Internet
Web-based GIS platform:
q  Metadata compilation and data upload tool
q  Metadata search and download facility
q  Central data repository
q  Documents and tools
Project webpage
[http://wave4us.web.auth.gr/index_eng.html]:
Spatial distribution and time-series of:
q  Wave fields
q  Coastal circulation
q  Thermohaline properties
q  Sea Level Heights
Television
Broadcasts:
Dion TV
Daily broadcasts of:
q  Wave fields
q  Coastal circulation
Emergency bulletins in
cases of extreme coastal
inundation events
http://coastal.web.auth.gr/ssm_Med_forecast.htm
4-day storm surge forecast over Thermaikos Gulf (Domain 3)
3-hourly SLH (m) distribution maps and time-series at specific
stations are provided every day at 10:00 local time (Athens)
http://wave4us.web.auth.gr/index_eng.html#loaded
Time-series of SLP and SLH evolution at specific stations
http://coastal.web.civil.auth.gr/ssm_Med.htm
Mediterranean Coastal Zone Information
Map (Google-earth)
0
150
0
100
0
50
200
250
300
350
400
0 to 0 .1
0.1 to 0.3
0.3 to 0.5
0.5 to 0.7
0.7 to 0.9
0.9 to 1.1
1.1 to 1.3
1.3 to 1.5
200
250
2000 Max SLH along the coastline
0
150
0
100
0
50
200
250
300
2003
350
400
200
250
300
350
400
350
400
2002
300
2004
Mediterranean Coastal Zone Information Map - Google-earth
maps
Thank you for your attention
wave4us.web.auth.gr
Partners:
q 
q 
q 
q 
q 
Laboratory of Maritime Engineering and Maritime Works – A.U.Th.
OMIKRON Planning, Study and Management of Environmental Technical Works Ltd.
Dion Television SA
Laboratory of Meteorology and Climatology – A.U.Th.
General Directorate of Development Planning Environment and Infrastructures - Region
of Central Macedonia
WaveForUs is funded by the national action "COOPERATION 2011:" Partnerships of Production and
Research Institutions in Focused Research and Technology Sectors in the framework of the operational
programme "Competitiveness and Entrepreneurship" (NSRF 2007-2013)