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

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

Department of Earth Sciences

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Publication status	Published - 2020
Event	16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019 - Taipei, Taiwan Duration: 2019 Oct 14 → 2019 Oct 18

Conference

Conference	16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019
Country/Territory	Taiwan
City	Taipei
Period	19-10-14 → 19-10-18

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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

abstract = "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.",

author = "Yang, {Chih Yao} and Chi, {C. Y.} and Chen, {R. F.} and Lin, {C. W.}",

note = "Publisher Copyright: Copyright {\textcopyright} Soil Mechanics and Geotechnical Engineering, ARC 2019.All rights reserved.; 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019 ; Conference date: 14-10-2019 Through 18-10-2019",

year = "2020",

language = "English",

}

TY - CONF

T1 - A new and powerful approach to mapping large-scale landslides using InSAR and LiDAR derived DEMs

AU - Yang, Chih Yao

AU - Chi, C. Y.

AU - Chen, R. F.

AU - Lin, C. W.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85084943916&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85084943916&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85084943916

T2 - 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019

Y2 - 14 October 2019 through 18 October 2019

ER -

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

Abstract

Conference

All Science Journal Classification (ASJC) codes

UN SDGs

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