Surface Deformation of Kangding Airport, Qinghai-Tibet Plateau, China Using Insar Techniques and Multi-Temporal Sentinel-1 Datasets

Kangding Airport, Sichuan, China located on the eastern margin of the Qinghai-Tibet Plateau has been developed in rugged terrain. The airport environment is characterized by high filling of earth materials, high frequencies and intensities of seismic activities, and high altitude. The understanding of potential risk of the 3-high airport assessed by the surface deformation is of vital importance. In this study, the Small Baseline Subset (SBAS) and Quasi Persistent Scatterer (QPS) techniques were used and proven to be effective to quantify the long-term surface deformation of the airport. The deformation was highly correlated with the local geological settings and annual climate cycle.