Insar Application to Baige Landslide Event, China, From Fast Rescue to Catchment Investigation

Aiming to mitigate the landslide hazard after event and to investigate the potential landslide over large area, the three-step landslide investigation strategy based on Synthetic Aperture Radar Interferometry (InSAR) is proposed, which includes (1) fast landslide mapping is calculated with small volume SAR data over specific landslide region on demand. (2) Pre-landslide deformation are precisely recovered with all archived SAR data to analyze the spatiotemporal landslide characteristics. (3) The potential landslides are fully investigated in the catchment scale with large volume SAR data. Sentinel-1A SAR data are continuously involved to give fast landslide monitoring and investigation over Baige landside and Jinsha River catchment.