NDLI: PRECURSORY SLOPE DEFORMATION AROUND LANDSLIDE AREA DETECTED BY INSAR THROUGHOUT JAPAN

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PRECURSORY SLOPE DEFORMATION AROUND LANDSLIDE AREA DETECTED BY INSAR THROUGHOUT JAPAN

Content Provider	Scilit
Author	Nakano, T. Wada, K. Yamanaka, M. Kamiya, I. Nakajima, H.
Copyright Year	2016
Description	Interferometric Synthetic Aperture Radar (InSAR) technique is able to detect a slope deformation around landslide (e.g., Singhroy et al., 2004; Une et al., 2008; Riedel and Walther, 2008; Sato et al., 2014). Geospatial Information Authority (GSI) of Japan has been performing the InSAR analysis regularly by using ALOS/PALSAR data and ALOS-2/PALSAR-2 data throughout Japan. There are a lot of small phase change sites except for crustal deformation with earthquake or volcano activity in the InSAR imagery. Most of the phase change sites are located in landslide area. We conducted field survey at the 10 sites of those phase change sites. As a result, we identified deformation of artificial structures or linear depressions caused by mass movement at the 9 sites. This result indicates that InSAR technique can detect on the continual deformation of landslide block for several years. GSI of Japan will continue to perform the InSAR analysis throughout Japan. Therefore, we will be able to observe and monitor precursory slope deformation around landslide areas throughout Japan.
Ending Page	1205
Page Count	5
Starting Page	1201
e-ISSN	21949034
DOI	10.5194/isprs-archives-xli-b1-1201-2016
Journal	The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Volume Number	XLI-B1
Language	English
Publisher	Copernicus GmbH
Publisher Date	2016-06-06
Access Restriction	Open
Subject Keyword	Physical Geography Remote Sensing Change Sites Phase Change Technique Can Detect Landslide Area Slope Deformation Deformation Around Landslide
Content Type	Text
Resource Type	Article

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