Preprint Article Version 1 This version is not peer-reviewed

Time-Series Displacement of Landslide In Danba County (China) Monitoried By the Small Baseline Subset (SBAS) Technique

Bo Hu * and Yang Wu
Version 1 : Received: 6 June 2018 / Approved: 14 June 2018 / Online: 14 June 2018 (08:44:11 CEST)

How to cite: Hu, B.; Wu, Y. Time-Series Displacement of Landslide In Danba County (China) Monitoried By the Small Baseline Subset (SBAS) Technique. Preprints 2018, 2018060224 (doi: 10.20944/preprints201806.0224.v1). Hu, B.; Wu, Y. Time-Series Displacement of Landslide In Danba County (China) Monitoried By the Small Baseline Subset (SBAS) Technique. Preprints 2018, 2018060224 (doi: 10.20944/preprints201806.0224.v1).

Abstract

Landslide is a sliding movement of rock mass, debris and soil along the slope under the action of gravity. Small Baseline Subset (SBAS) is an established method for the investigation and monitoring of landslide moments. This study focuses on monitoring the long-temporal displacement of mountainous terrain in Danba County, Sichuan Province via SBAS technique, based on 31 scenes of L-band ALOS/PALSAR data from Feb. 2007 to Oct. 2010.The results show that the largest velocity rates in LOS direction are ±120 mm/yr and maximum accumulated displacement is up to -300, which indicates fast movement of the mountainous terrain during the observation time. These results get good consistency against the results of previous study. This demonstrates the strong potential of SBAS technique for monitoring the landslides geohazard.

Subject Areas

SBAS; landslide; danba; time-series; displacement

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