Applying the lagamine model to compute land subsidence in Shanghai
نویسندگان
چکیده
منابع مشابه
Detecting Land Subsidence in Shanghai by PS-Networking SAR Interferometry
Existing studies have shown that satellite synthetic aperture radar (SAR) interferometry has two apparent drawbacks, i.e., temporal decorrelation and atmospheric contamination, in the application of deformation mapping. It is however possible to improve deformation analysis by tracking some natural or man-made objects with steady radar reflectivity, i.e., permanent scatterers (PS), in the frame...
متن کاملAnalysis of Factors in Land Subsidence in Shanghai: A View Based on a Strategic Environmental Assessment
It has been observed that in the urban center of Shanghai, land subsidence has accelerated, and the groundwater level has continued to drop even though the net withdrawn volume (NWV) of groundwater has remained unchanged since 1980. An analysis of monitoring data shows that drawdown of the groundwater level is one of the factors that have influenced land subsidence since 1980. The NWV of ground...
متن کاملMagnitude and Extent of Six Years of Land Subsidence in Shanghai Revealed by JERS-1 SAR Data 477 Magnitude and Extent of Six Years of Land Subsidence in Shanghai Revealed by JERS-1 SAR Data
Many provinces in China including Shanghai, Tianjin, Jiansu, Hubei, Hangzhou, Suzhou, Changzhou, Cangzhou, and Jianxing (Deng and Ju, 1994; Ding et al., 2005; Hu et al., 2004; Xue et al., 2005; Yang et al., 2005) are subsiding owing to rapid development and urbanization. The cause identified with these subsidence phenomena has been mainly due to excessive withdrawal of groundwater (Chai et al.,...
متن کاملSubsidence Measurement with Ps-insar Techniques in Shanghai Urban
Spaceborne SAR Differential interferometry (DInSAR) has been used to monitor some geological disasters such as ground subsidence. This paper applies two Permanent Scatterer InSAR(PS-InSAR) techniques to measure long-term and short-term subsidence in urban area of Shanghai urban. A great number of archieved ERS data are utilized to measure long-term subsidence during 1993-2000 year. A small set ...
متن کاملMonitoring of land subsidence due to overexploitation of groundwater using PS-InSAR in the region in hamadan proviance, Iran
Land subsidence is one of the environmental hazards that has been less well-regarded by human societies due to lower human casualties. However, the earth subsidence causes irreparable damage to the urban areas and adjacent plains over time. In this study, Permanent Scatterer (PS) method has been used to monitor land subsidence in the region in hamadan proviance and its adjacent plains in west o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the International Association of Engineering Geology
سال: 1993
ISSN: 1435-9529,1435-9537
DOI: 10.1007/bf02639591