Application of Small Spatio-Temporal Baseline PS-InSAR to the Study of Land Subsidence in Beijing
详细信息
- 责任者：Du Zhaofeng (College of Resource Environment and Tourism ; Capital Normal University ; Beijing 100048 ; China) ; Gong Huili
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2012
- 卷期：39(5)
- 关键词：地面沉降 ; land subsidence ; 合成孔径雷达 ; synthetic aperture radar ; 北京 ; Beijing
- 页码：p.116-120
- 图表：illus., 1 table, 10 refs.
- 分类号：1800
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
This paper uses the small spatio-temporal baseline PS-InSAR method to monitor land subsidence in the Beijing region,analyzes regional land subsidence in the evolution of time series and the impact of extraction of groundwater,and the fault zone to land subsidence.The results show that the ground subsidence in time series has a clear seasonal variation,reflecting the extraction of groundwater as the main reason leading to land subsidence.The ground subsidence also depends on the impact of faults.The central area of surface subsidence and depression cone of groundwater level are not completely match,which may has a close relationship with the thickness of the compressible soil.
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