Deformation Products Of Lutan-1(Lt-1) Sar Satellite Constellation for Geohazard Monitoring

Lutan-l (LT-1) is the first Chinese SAR satellite constellation that provide continuous deformation images covering the whole China. Three deformation products are designed to conduct the geohazard monitoring tasks. The first is DInSAR deformation field product which can be used for general geohazards investigation. The second is stacking deformation velocity field that can be used for geohazards screening. The third is deformation time-series obtained from multi-temporal InSAR and is specially designed for the continuous deformation regions to discover the deformation rules in temporal domain. In this paper, the LT-1 key features for deformation monitoring are provided. Product examples are shown with the Setninel-1A SAR images covering Datong City, Shanxi province. The three deformation products are expected to be used for geohazard monitoring in China.