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	Ground deformation monitoring of Shenzhen metro area with Interferometric Point Target Analysis
	Zhou hongman; Hu jinxing; Liu xiang; Ren peng
	2012
会议名称	2012 20th International Conference on Geoinformatics, Geoinformatics 2012
会议地点	Hong Kong
英文摘要	Interferometric Point Target Analysis (IPTA) is a method to exploit the temporal and spatial characteristics of interferometric signatures collected from point targetsto accurately map surface deformation histories, terrain heights, and relative atmospheric path delays. In this study, we applied the IPTA technique to monitor theground deformation of Shenzhen urban area and along the Shenzhen metro lines. The available SAR dataset consists of 20 images from the satellite mission ENVISAT between January 2008 and July 2010. The maximum subsidence rate reaches up to -17.9 to -10 mma-1. The maximum rise rate reaches up to 6 to 9.8 mma-1. The Point Target velocity map shows that there is a strong subsidence in Shenzhen urban area, and the subsidence rate is larger than -10 mma-1. There is also severe subsidence along the metro lines, especially at the stations. The subsidence in the first phase of the Shenzhen metro project is less than the second phase of metro project. The subsidence along the elevated line is less than the underground line. The locations of ground collapse events are mainly distributed at the metro stations. © 2012 IEEE.(12 refs)
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/4235]
专题	深圳先进技术研究院_数字所
作者单位	2012
推荐引用方式 GB/T 7714	Zhou hongman,Hu jinxing,Liu xiang,et al. Ground deformation monitoring of Shenzhen metro area with Interferometric Point Target Analysis[C]. 见: 2012 20th International Conference on Geoinformatics, Geoinformatics 2012. Hong Kong.

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