Analysis of ground subsidence at a coal-mining area in Huainan using time-series InSAR

	Analysis of ground subsidence at a coal-mining area in Huainan using time-series InSAR
	Zhang, Zhengjia 1; Wang, Chao 1; Tang, Yixian 1; Zhang, Hong 1; Fu, Qiaoyan 1
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2015
卷号	36 期号:23 页码:440-446
通讯作者	Wang, C (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China.
英文摘要	In Huainan City, Anhui Province, China, ground subsidence persistently occurs due to underground coal mining, which has caused several environmental issues. A modified time-series Interfermetric synthetic aperture radar (InSAR) technique is applied to obtain ground movement in Huainan over a period of approximately two years using 20 ascending Radarsat-2 images. In particular, distributed scatterers (DSs) are efficiently identified using classification information and statistical characteristics. Classified information is used to identify the specific DS classes and statistical characteristics are used to refine the DS candidates. To control error propagation and improve computational efficiency, the deformation rate and digital elevation model (DEM) error of persistent scatterers (PSs) are first retrieved using conventional persistent scatterer intermemetry (PSI). Then, a region-growing-based strategy is applied to extract the deformation rate of DSs. Land subsidence is detected in coal-mining areas of central Dingji, Guqiao, Zhangjiaji, Xinji I, and Xinji II, which suggests that the subsidence is primarily caused by underground mining. The fastest subsidence occurring in non-urban areas is particularly vulnerable to subsidence and collapsed lakes. It is also found that the collapsed lakes have expanded during the observation period, with an expanded mining area of 0.842 km(2) near Guqiao. A linear relationship between the observed subsidence and expansion of collapsed lakes was found, which indicates that the expansion of collapsed lakes hass resulted from subsidence due to underground coal mining.
研究领域[WOS]	Remote Sensing ; Imaging Science & Photographic Technology
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000365865600002
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38042]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Zhang, Zhengjia 2.Wang, Chao 3.Tang, Yixian 4.Zhang, Hong] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China 5.[Zhang, Zhengjia] Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.[Fu, Qiaoyan] China Ctr Resources Satellite Data & Applicat CRE, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhengjia,Wang, Chao,Tang, Yixian,et al. Analysis of ground subsidence at a coal-mining area in Huainan using time-series InSAR[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2015,36(23):440-446.
APA	Zhang, Zhengjia,Wang, Chao,Tang, Yixian,Zhang, Hong,&Fu, Qiaoyan.(2015).Analysis of ground subsidence at a coal-mining area in Huainan using time-series InSAR.INTERNATIONAL JOURNAL OF REMOTE SENSING,36(23),440-446.
MLA	Zhang, Zhengjia,et al."Analysis of ground subsidence at a coal-mining area in Huainan using time-series InSAR".INTERNATIONAL JOURNAL OF REMOTE SENSING 36.23(2015):440-446.