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Proc. IAHS, 372, 347-349, 2015
https://doi.org/10.5194/piahs-372-347-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
12 Nov 2015
Mapping and characterization of land subsidence in Beijing Plain caused by groundwater pumping using the Small Baseline Subset (SBAS) InSAR technique
M. L. Gao1,2,a, H. L. Gong1,2, B. B. Chen1,2, C. F. Zhou1,2, K. S. Liu1,2, and M. Shi1,2 1College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
2State Key Laboratory Incubation Base of Urban Environmental Processes and Digital Simulation, Capital Normal University, Beijing 100048, China
anow at: Haidian, Beijing, China
Abstract. InSAR time series analysis is widely used for detection and monitoring of slow surface deformation. In this paper, 15 TerraSAR-X radar images acquired in stripmap mode between 2012 and 2013 are processed for land subsidence monitoring with the Small Baseline Subset (SBAS) approach in Beijing Plain in China. Mapping results produced by SBAS show that the subsidence rates in the area of Beijing Plain range from −97.5 (subsidence) and to +23.8 mm yr−1 (uplift), relative to a presumably stable benchmark. The mapping result also reveals that there are the five subsidence centers formed by surface deformation spreading north to south east of the downtown. An uneven subsidence patten was detected near the Beijing Capital International Airpor, which may be related to loading of buildings and the aircraft.

Citation: Gao, M. L., Gong, H. L., Chen, B. B., Zhou, C. F., Liu, K. S., and Shi, M.: Mapping and characterization of land subsidence in Beijing Plain caused by groundwater pumping using the Small Baseline Subset (SBAS) InSAR technique, Proc. IAHS, 372, 347-349, https://doi.org/10.5194/piahs-372-347-2015, 2015.
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