Surface Parallel Velocities of Rock Glaciers in Daxue Shan, Southeastern Tibetan Plateau, Using SAR Interferometry and SPF Model

This dataset includes annual creeping velocities (2019-2020) of rock glaciers in Daxue Shan, Southeastern Tibet Plateau, estimated by combining ascending and descending InSAR observations with the surface parallel flow model (SPF). Initially, we mapped the velocities of rock glaciers in Daxue Shan from January 2019 to December 2020 using the Small Baseline Subset (SBAS) InSAR algorithm with Sentinel-1A SAR images from both ascending and descending tracks. Subsequently, by amalgamating the LOS measurements from both tracks and the improved surface parallel flow model, we estimated the 3D creeping velocities of the rock glaciers. Finally, we projected the resolved 3D displacement vectors onto the direction parallel to the slope through vector addition.