Differential Interferometry for Mining Subsidence Monitoring
Coal mining activities all over the world often introduce serious environmental impact to the local regions, such as the occurrence of land subsidence. Conventional subsidence monitoring is done by precision leveling and GPS surveying. However, recent studies show that differential interferometric synthetic aperture radar (DInSAR) is capable of monitoring land subsidence at sub-cm accuracy. In this paper, DInSAR was applied to detect the land subsidence in the Northern China Plain (NCP). This region is well known for being suffering from die mine subsidence. In this study, two-pass DInSAR method was used with a Shuttle Radar Topography Mission (SRTM) C-Band digital elevation model (DEM). Twenty JERS-1 L-band SAR images were used. Based on time-spans and data quality, mainly the atmospheric effect and decorrelation, only 4 pairs were selected for demonstrating the land subsidence. Four land subsidence bowls were found in the test site, and the trend of two subsidence bowls also analyzed. The DInSAR technology is a powerful tool for mining subsidence monitoring.
Yusen Dong Kui Zhang Jiangtao Liu
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China;School of Surveying School of Surveying and Spatial Information Systems, UNSW, Sydney 2052, Australia State Key Lab of Geological Processes and Mineral Resources, China University, Wuhan 430074, China
国际会议
The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)
北京
英文
207-210
2007-08-26（万方平台首次上网日期，不代表论文的发表时间）