SAR interferometry for DEM generation and movemnet of Indian glaciers

被引：0

作者：

Rao, YS ^{[1
]}

Venkataraman, G ^{[1
]}

Rao, KS ^{[1
]}

Snehmani ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Studies Resources Engn, Bombay 400076, Maharashtra, India

来源：

IGARSS 2004: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM PROCEEDINGS, VOLS 1-7: SCIENCE FOR SOCIETY: EXPLORING AND MANAGING A CHANGING PLANET | 2004年

关键词：

SAR interferometry; DEM; movement; glaciers;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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.

引用

页码：1128 / 1131

页数：4

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