A new and powerful approach to mapping large-scale landslides using InSAR and LiDAR derived DEMs

Chih Yao Yang, C. Y. Chi, R. F. Chen, C. W. Lin

研究成果: Paper同行評審

摘要

In recent years, natural disasters occurred more frequently than before mainly due to extreme rainfall arising from global climate change. The Hsiaolin landslide that caused 450 casualties during the 2009 Typhoon Morakot is a typical example known to many people. After Hsiaolin Landslide, Central Geological Survey and Soil and water Conservation Bureau have devoted great efforts to map potential large-scale landslides using LiDAR-derived 1 m DEM. So far, over ten thousands of large-scale landslides have been identified. Considering vulnerability and risks involved, 182 deep-seated landslides have been selected for further landslide hazard mitigation. Additionally, InSAR analysis that can provide mm resolution displacement rate is also employed to help to determine which site needs to be paid more attention with. This paper has selected Dingyuan New Village in Nantou County to illustrate how to use both of LiDAR derived DEMs and the results of Temporarily Coherent Point SAR Interferometry (TCP-InSAR) to locate large-scale landslides.

原文English
出版狀態Published - 2020 一月 1
事件16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019 - Taipei, Taiwan
持續時間: 2019 十月 142019 十月 18

Conference

Conference16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019
國家Taiwan
城市Taipei
期間19-10-1419-10-18

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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