Lobuche Glacier and Ice Fall Glacier Laser Scanner Survey

Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Lobuche Glacier
and
Ice Fall Glacier
Laser Scanner Survey
Inn.tec s.r.l
Innovation Technology Consortium
Brescia
L’Umana Dimora
Environmental Association
Politecnico of Milano
Polo Regionale di Lecco
University of Brescia
Dept. of Civil Engineering
The Lobuche Glacier and Ice Fall Glacier are located in
the Sagarmatha (Everest) National Park – Himalaya
Nepal.
During the Changri Nup Monitoring Expedition 2003 the
two glaciers were surveyed using terrestrial laser
scanner.
The research program is coordinated by the
HELPGroup (HIMALAYAN ENVIRONMENTAL
LABORATORY PROJECT) .
These researches are promoted in synergy with Ev-K2CNR (Italian National Council of Research ).
Help – General Secretary
Tel. +39.030.3715516 Fax. +39.030.3715503
e-mail: [email protected]
www.rilevamento.it
•Inn.Tec. srl
Ing. Matteo Sgrenzaroli
Tel. 347-6475608 e-mail: [email protected]
•L’Umana Dimora
Dott. Filippo Bernini
Tel. 335-7548971 e-mail: [email protected]
•Politecnico di Milano – Polo di Lecco
Prof. Alberto Giussani
Tel. 0341-488778 e-mail: [email protected]
•Università di Brescia
Prof. Giorgio Vassena
Tel. 030-3715516
e-mail: [email protected]
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Lobuche Glacier - Khumbu Valley (from 5100 m to 5400m)
The glacier was surveyed 2 times during the expedition with a time interval of 10 days in order to evaluate glacier
changes.
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Ice Fall Glacier - Khumbu Valley (from 5400 m to 6100 m)
The Khumbu Ice Fall glacier is the first part of the classic southern route on Everest. This glacier is constantly shifting down
the mountain. It was surveyed using the laser scanner for 3 day in continuous to evaluate ice shifting. Picture by Matteo Sgrenzaroli
Laser Scanner used for Glaciers Survey:
Long-Range Measuring System LPM-2K
by RIEGL Laser Measurement Systems
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
(http://www.riegl.com/)
Measurement range :
•on ice surface up to 1500 m
•on rocks surface up to 2500 m
Resolution: 10 mm
Beam divergence: 1.2 mrad
Laser wavelength: 0.9 µm (near infrared)
Acquisition steps: 100 mgon
Operational altitude of acquisition: from 5100 m
to 5400 m
Operational temperature : from – 10 C° to 20 C°
Numbers of acquisitions and acquisition time:
Lobuche Glacier: 2 scans from 2 different
positions, 6 hours per scans . The 2 scans were
repeated 10 days after the first 2 scans.
Ice Fall: 15 scans repeated in continuous
2 global scans : 3 hours per scan
13 local scans: 1 hour per scan
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Laser Telescope view (magnification 3 x 20) used to define the area to be surveyed
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Six days of high mountain trekking were required to reach Lobuche and Ice Fall glaciers.
Local porters and sherpa are needful for high mountains research programs
Picture by Matteo Sgrenzaroli
First laser Scanner test at 5000m in front of
The Pyramid Laboratory-Observatory Ev-K2CNR Project
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
The Laboratory is located at 5050 m above sea
level, in the Khumbu valley, at the foot of the
Nepali side of Mt. Everest.
(http://www.montagna.org/Comitato-EvK2-CNR)
The Changri Nup Glacier Monitoring Expedition
Program started in 1998 and it will active until
2005 within the context of the Ev-K2CNR Project
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Base camp at 5200m for Lobuche glacier survey. Solar panels are adopted for laser and computer power supply.
Picture by Matteo Sgrenzaroli
First laser data results analyzed using Reconstructor Software.
Reconstructor is developed by Institute for the Protection and Security of the Citizen of the Joint Research
Centre (Ipsc-JRC) (http://ipsc.jrc.cec.eu.int/, http://mortimer.jrc.it)
Inn.Tec. s.r.l – Consortium for Innovation Technology – in accordance with European Commission is official
distributor of the software packages for laser data processing (http:// www.topotek.it, http:// inntec.it)
Ice surface backscatter at laser signal is good. The 3D data allows direct measurements of the glacier.
Reflector targets suitable to be survey by the laser
scanner are used for range scan registration and
geo-referencing.
Changri Nup Glacier Monitoring Expedition 2003
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These targets are visible at long distance (up to
2500 m) and orientation can be fixed according to
the laser position.
Laser scanner survey project within the context of
the 2003 Changri Nup Glacier Monitoring was
carried on by the research team composed by:
Prof Cesare Alippi of Politecnico of Milano
Polo Regionale di Lecco
Politecnico fo Milano
Prof Luigi Giussani of Politecnico of Milano
Polo Regionale di Lecco
Politecnico fo Milano
Ing. Carlo Lanzi University of Brescia
Dept. of Civil Engineering
Ing. Matteo Sgrenzaroli Inn.tec s.r.l
Innovation Technology Consortium
Brescia
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Targets geographical position is surveyed through GPS receivers.
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Mount Everest
Everest Base Camp
Ice Fall Glacier - Khumbu Valley (from 5400 m to 6100 m): Surveyed area
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Everest Base camp at 5350 m. Ice Fall Glacier was surveyed for 3 days in continuous.
Picture by Matteo Sgrenzaroli
Avalanche fall down by Pumori (7161 m) east face
viewed from Everest base Camp, point of
acquisition for the Ice Fall Glacier survey
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Picture by Matteo Sgrenzaroli
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Everest Base camp at 5350 m. Ice Fall Glacier surveyed with Riegl LPM-2K
Picture by Matteo Sgrenzaroli
External digital photos are applied on the 3D Lobuche Model using the Reconstructor Software
Geometrical information allows glacier surface calculation.
Textured model provides additional information for glaciological analyses.
Registered scans can be compared using the Reconstructor Software
Temporal comparisons can provide geometrical information on Ice Fall shifting
Changri Nup Glacier Monitoring Expedition 2003
www.rilevamento.it
Sunset from the Everest Base camp at 5350 m.
Picture by Matteo Sgrenzaroli