Revealing Land Subsidence in Beijing by Sentinel-1 Time Series InSAR

Beijing, one of the biggest cities in China, has suffered land subsidence for a long time. It has been reported from the study in 2005–2017 the maximum subsidence rate reaches up to more than 10 cm/year. In this paper, the subsidence in Beijing will be revealed by time series InSAR with Sentinel-1 TOPS data during 2017–2018 for the first time. The time series analysis was performed by SBAS-InSAR method. The annual subsidence rate and time series subsidence of Beijing were acquired. The results revealed that eastern Chaoyang district and northwestern of Tongzhou district were the severe subsidence areas in Beijing with more than 10 cm/year subsidence rate, indicating that the subsidence was continuous in recent years and relative measures should be taken by the government.

[1]  Jun Yu,et al.  Imaging Land Subsidence Induced by Groundwater Extraction in Beijing (China) Using Satellite Radar Interferometry , 2016, Remote. Sens..

[2]  Keren Dai,et al.  Land subsidence in Beijing and its relationship with geological faults revealed by Sentinel-1 InSAR observations , 2019, Int. J. Appl. Earth Obs. Geoinformation.

[3]  Tao Li,et al.  Extracting Vertical Displacement Rates in Shanghai (China) with Multi-Platform SAR Images , 2015, Remote. Sens..

[4]  J. Nocquet,et al.  Slip distribution of the February 27, 2010 Mw = 8.8 Maule Earthquake, central Chile, from static and high‐rate GPS, InSAR, and broadband teleseismic data , 2010 .

[5]  Bing Li,et al.  Land subsidence in Tianjin for 2015 to 2016 revealed by the analysis of Sentinel-1A with SBAS-InSAR , 2017 .

[6]  Howard A. Zebker,et al.  Surface motion of active rock glaciers in the Sierra Nevada, California, USA: inventory and a case study using InSAR , 2013 .

[7]  Huili Gong,et al.  Land subsidence prediction in Beijing based on PS-InSAR technique and improved Grey-Markov model , 2017 .

[8]  Qingquan Li,et al.  Anatomy of Subsidence in Tianjin from Time Series InSAR , 2016, Remote. Sens..

[9]  Wei Xu,et al.  A region-growing algorithm for InSAR phase unwrapping , 1999, IEEE Trans. Geosci. Remote. Sens..

[10]  Matthew E. Pritchard,et al.  Decadal volcanic deformation in the Central Andes Volcanic Zone revealed by InSAR time series , 2013 .

[11]  Xiaojing Li,et al.  Monitoring ground deformation in Beijing, China with persistent scatterer SAR interferometry , 2012, Journal of Geodesy.