Science Service System

Summary of Proposal MTH2946

TitleGround Deformation Estimation Using TerraSAR-X images in Pearl River Delta
Investigator wang, xiaohua - Guilin University of Technology, College of Earth Sciences
Team Member
Professor mou, li - Guilin University of Technology, College of Earth Sciences
Docter meng, peng - Guilin University of Technology, College of Earth Sciences
Master guangkun, ran - Guilin University of Technology, College of Earth Sciences
Summary

Megalopolises in the Pearl River Delta, including Guangzhou and Hong Kong, have experienced various degree of ground subsidence. The causes can be divided into two categories: natural subsidence and the human-induced subsidence. Monitoring the ground subsidence can not only help people to find out the distributions in both spatial and temporal fields, but also guide people to minimize the hazard ahead. Thus, it is significant to monitor the ground subsidence accurately, timely and frequently. This project uses TerraSAR-X data and InSAR technology for monitoring large-scale ground deformation in Guangzhou and Hong Kong areas. Persistent Scatterer method is used to detect ground deformation in the urban area of Guangzhou city. A ground deformation rate map with scattered distribution of point targets will be generated. Based on the point target map, a contour ground deformation rate map is generated. In this proposal, the following scientific questions are studied. What is the current status of ground subsidence in the area of Guangzhou city? What are the mechanisms for causing the ground subsidence in Guangzhou area? The purpose of this research is to use PSI technology and TerraSAR-X images to detect ground deformation in the urban area of Guangzhou city.

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DLR 2004-2016