Landslide displacement detection around Hakusan volcano, central Japan, from InSAR analysis of ALOS-2/PALSAR-2 data

nSAR analysis using ALOS-2/PALSAR-2 data was conducted to detect landslides around Hakusan volcano, where we observed landslide movements in three areas. In the Jinnosukedani area, we detected landslide movement with maximum annual displacement of 200 mm, which is consistent with that of GNSS observations on the ground surface. In the Yunotani area, we detected landslide movement with maximum annual displacement of 200 mm. The landslide area detected by the InSAR analysis is almost coincident with a previous study of InSAR analysis, although the remarkable landslide area with annual displacement of 100–200 mm is narrower than that reported by the previous study. In the Sennindani area, a large slope collapse can be captured by InSAR analysis as a low coherence area. InSAR analysis around Hakusan volcano provides results that are consistent with those of the ground-based monitoring in the field, indicating that InSAR analysis is a useful landslide-monitoring tool

InSAR解析による地すべり変動の検出

13301甲第4747号博士（理学）金沢大学博士論文要旨Abstract 要約Outline 以下に掲載予定：The Science Reports of Kanazawa University 61 pp.39-47 2017. Kanazawa University. 共著者：Yuya Kitoh, Yoshihiro Hiramats