Surface deformation monitoring based on DINSAR technique

In this paper, we monitor the surface deformation of Helan Mountains by using the DInSAR (Differential Interferometric Synthetic Aperture Radar) technology and Sentinel-1 SAR data from December 2019 to December 2021. The surface deformation of the Helan Mountain National Natural Reserve with a study area extending to 1935 km2 are observed. The findings indicate that the surface of Helan Mountain Reserve is rising in the east and sinking in the west, with no obvious increasing tendency in the north or south of Helan Mountain. Additionally, the vertical deformation map created by D-InSAR processing is used to monitor two monitoring cycles with significant deformations in June 2020 and December 2021. Furthermore, Helan Mountain has experienced two earthquakes with magnitudes of 3 or greater, according to the differential interference technique. An important decision-making basis for disaster prevention and mitigation can be provided by the deformation data of the ground surface obtained by the InSAR technology.