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SAR interferometry for DEM generation and movemnet of Indian glaciers

DSpace at IIT Bombay

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Title SAR interferometry for DEM generation and movemnet of Indian glaciers
 
Creator RAO, YS
VENKATARAMAN, G
RAO, KS
SNEHMANI
 
Subject ice-sheet motion
radar interferometry
sar interferometry
dem
movement
glaciers
 
Description Two famous glaciers viz. Gangotri and Siachen were studied for DEM generation and movement usiny ERS-1&2 tandem data. While surrounding areas along the glaciers showed more decorrelation, glacier area showed a very good correlation between two image acquisitions. Contours obtained using ERS-1&2 SAR tandem data closely match with topographic maps of the area. Two-pass differential method was used along with SRTM DEM to study the movement of the glaciers. According to the differential interferogram over Gangotri, 3 fringes equivalent to 8.4 em displacement in the radar look direction were observed, whereas for Siachen the fringes were about 8 which is equivalent to. 22 cm. The estimated DEMs and movements are to be verified using GPS measurements.
 
Publisher IEEE
 
Date 2011-10-26T17:29:04Z
2011-12-15T09:12:26Z
2011-10-26T17:29:04Z
2011-12-15T09:12:26Z
2004
 
Type Proceedings Paper
 
Identifier IGARSS 2004: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM PROCEEDINGS, VOLS 1-7: SCIENCE FOR SOCIETY: EXPLORING AND MANAGING A CHANGING PLANET,1128-1131
0-7803-8742-2
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16073
http://hdl.handle.net/100/2664
 
Source IEEE International Geoscience and Remote Sensing Symposium,Anchorage, AK,SEP 20-24, 2004
 
Language English