Research on Surface Deformation Analysis and Prevention Methods in Landslide Areas
DOI:
https://doi.org/10.53469/jtpms.2023.03(12).05Keywords:
Baige Landslide, Sentinel-1, PS-InSARAbstract
A landslide occurred near the village of Baige, Polo Township, Jiangda County, Tibet, causing the Jinsha River to cut off its flow and forming a weir. Sentinel-1, Landsat8 data were collected to analyse the impact of the weir formed by the landslide on the upstream villages and towns, and the MT-InSAR technique was applied to obtain the movement characteristics of the landslide body before the landslide occurred. the results showed that the baige landslide had already been significantly slipping before the disaster occurred, and the average rate of change of the baige landslide front was obtained according to the PS-InSAR results, and two suspected landslides were found in the southwest and north of the landslide. PS-InSAR can discriminate the landslide in advance and make regular observation of the active landslide suspected landslide to provide early warning before the disaster occurred.
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