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SAR interferometry and speckle tracking approach for glacier velocity estimation using ERS-1/2 AND TERRASAR-X spotlight high resolution data

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Title SAR interferometry and speckle tracking approach for glacier velocity estimation using ERS-1/2 AND TERRASAR-X spotlight high resolution data
 
Creator KUMAR, V
VENKATARAMAN, G
RAO, YS
 
Subject satellite radar interferometry
coherence loss
glaciers
sar interferometry
dinsar
 
Description Glacier retreat and advance is general phenomenon in Himalayan region due to change in climatic conditions For quantifying the global warming effects on local scale glacier system monitoring and estimating its dynamic geophysical parameters viz movement and volume change are Important In this study glacier movement estimation is attempted in north western Himalayan region using spaceborne InSAR technique, which is based on preserving the coherence between two acquisitions of the same scene It is observed that ERS-1/2 tandem data give high correlation over Gangotri glacier and Siachen glacier and movement in LOS direction is deciphered However, with the use of SAR Speckle tracking method two dimensional (Azimuth and range directions) velocities of glaciers can be obtained In this study attempt has been made to measure 2-D velocity components of Gangotri glacier New generation TerraSAR-X (TS-X) high resolution spotlight mode (HS). single look slant range complex (SSCs) data of 28(th) August. 2008, 08(th) September. 2008. 19th September. 2008 and 30(th) September. 2008 are exploited for this study Interferogram, coherence Image and intensity image are generated It is observed that Interferometric SSC data of 28(th) August, 2008 and 08th September, 2008 give some fringes outside glacier area and complete decorrelation is shown on the Gangotri glacier due to high movement of glacier
 
Publisher IEEE
 
Date 2011-10-25T19:24:06Z
2011-12-15T09:12:06Z
2011-10-25T19:24:06Z
2011-12-15T09:12:06Z
2009
 
Type Proceedings Paper
 
Identifier 2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5,3757-3760
978-1-4244-3394-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15799
http://hdl.handle.net/100/2465
 
Source IEEE International Geoscience and Remote Sensing Symposium,Cape Town, SOUTH AFRICA,JUL 12-17, 2009
 
Language English