ABSTRACT
Coal mining, groundwater extraction, and urbanization have caused increasingly prominent land subsidence problems in Shandong Province. With the help of time series SBAS-InSAR technology commonly used for long-term and large-scale land subsidence, this paper uses the image data of 12 Sentinel-1A scenes from March 2018 to February 2019 to investigate the land subsidence of Jining, Heze, and Zaozhuang in Shandong Province. Sedimentation distribution, cumulative sedimentation, and annual average sedimentation rates were obtained for the three urban areas during the monitoring period. In the past two years, the settlement rate in these areas has been relatively fast, reaching 193 mm/year. Under this premise, this article introduces in detail the development characteristics and settlement characteristics of Jining city, Yuncheng city, Yanzhou District and other areas, and conducts an in-depth discussion on the reasons for the settlement phenomenon.
