Detection of landslide surface deformation in Min Jiang watershed, China using PALSAR-2 InSAR image

Hiroshi, P. Sato; Masahiro Chigira

Presentation information

[EE] Poster

H (Human Geosciences) » H-DS Disaster geosciences

[H-DS07] Landslides and related phenomena

Tue. May 22, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Masahiro Chigira(Disaster Prevention Research Institute, Kyoto University), Gonghui Wang(Disaster Prevention Research Institute, Kyoto University), Fumitoshi Imaizumi(静岡大学農学部)

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[HDS07-P04] Detection of landslide surface deformation in Min Jiang watershed, China using PALSAR-2 InSAR image

*Hiroshi, P. Sato¹, Masahiro Chigira² (1.College of Humanities and Sciences, Nihon University, 2.Disaster Prevention Research Institute, Kyoto University)

Keywords:PALSAR-2, Landslide, precursory phenomenon

In 24 June 2017, 10 million m³ order landslide occurred and baried more than 100 people in Xinmo Village, Min Jiang watershed in Sichuan Province, China. Previous studies detected precursory landslide surface deformation using Sentinel-1 data, processed in PSInSAR method; however, the deformation after the landslide is not revealed. This study reports the result of the detection using ALOS-2/PALSAR-2 observed in 7 Dec 2017, 4 Jan 2018, and 1 Feb 2018, processed in conventional InSAR method. This study used PALSAR-2 data provided by JAXA in the framework of JAXA sediment disaster prevention working group and specific research in Earthquake Research Institute, University of Tokyo.