NDLI: Characterization of the giant landslide at Wenjiagou by the insar technique using TSX-TDX CoSSC data

Content Provider	Springer Nature Link
Author	Tang, Yixian Zhang, Zhengjia Wang, Chao Zhang, Hong Wu, Fan Liu, Meng
Copyright Year	2015
Abstract	A landslide map is the most basic element for any landslide assessment, especially for giant landslides. However, due to remoteness and hazards, it is difficult to know the characteristics of these landslides after great earthquakes. In this study, the Coregistered Single look Slant range Complex(CoSSC) synthetic aperture radar (SAR) data from TerraSAR-X and its twin satellite TanDEM-X are employed to estimate a high-accuracy digital elevation model (DEM) for the giant landslide in Wenjiagou on Feb. 1, 2013, which was one of the biggest landslides triggered by the 2008 Wenchuan great earthquake. Then, compared to the DEM from SRTM, the elevation change can be estimated, and the characteristics of the Wenjiagou landslide, such as the source and deposit area, are highlighted. Based on the estimation of elevation change, the initial and deposit volumes are estimated as 5.09 × 107 m3 and 4.47 × 107 m3 respectively which are in agreement with previous field investigations by other researchers. And the results also show that using bistatic space-borne SAR data is an effective means for timely assessment of the giant landslide.
Starting Page	1015
Ending Page	1021
Page Count	7
File Format	PDF
ISSN	1612510X
Journal	Landslides
Volume Number	12
Issue Number	5
e-ISSN	16125118
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-08-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bistatic InSAR Landslide Wenjiagou Surface morphology Natural Hazards Geography (general) Agriculture Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geotechnical Engineering and Engineering Geology

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