Reduced rate of land subsidence since 2016 in Beijing, China: evidence from Tomo-PSInSAR using RadarSAT-2 and Sentinel-1 datasets

doi:10.1080/01431161.2019.1662967

	Reduced rate of land subsidence since 2016 in Beijing, China: evidence from Tomo-PSInSAR using RadarSAT-2 and Sentinel-1 datasets
	Zhou, Chaodong 1,5; Lan, Hengxing 5,6; Gong, Huili 2; Zhang, Youquan 2; Warner, Timothy A.3; Clague, John J.4; Wu, Yuming 1,5
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2019-09-07
页码	27
ISSN号	0143-1161
DOI	10.1080/01431161.2019.1662967
通讯作者	Lan, Hengxing(lanhx@lreis.ac.cn)
英文摘要	Land subsidence associated with groundwater extraction in the city of Beijing, China, has been a problem for decades. Remote sensing has been used extensively in prior studies to monitor subsidence in Beijing. However, given recent changes in precipitation and groundwater management, there is an urgent need to update the subsidence record and to evaluate whether the long-term spatiotemporal patterns of subsidence have changed. This study therefore investigates the recent spatiotemporal patterns of land subsidence in Beijing by tomography-based persistent scatterer interferometry SAR (Tomo-PSInSAR) technology, using 39 RadarSAT-2 images from 2012 to 2015 and 33 Sentinel-1 images from 2016 to May-2018, and drawing upon Geographic Information System (GIS) spatial analysis methods. Vertical ground deformation rates in Beijing were found to range from -176.2 to +12.3 mm year(-1) from 2012 to 2015, but subsequently decreased to -119 to +8 mm year(-1) from 2016 to May 2018. Three spatial scale of subsidences are evident: At the metropolitan regional-scale, the total area of subsidence area is about 1235.2 km(2), and comprises four main subsiding regions, located in the northern and eastern parts of the city. More than 85% of the subsiding area is located between the Fifth and Sixth Ring Roads. At a more local scale, eight main subsidence bowls are characterized by different patterns of subsidence. Some of the subsidence bowls are separated by active faults. Time-series data of the displacement show that the decreasing subsidence rate after 2016 could be due to the 1 m rise in mean groundwater level from the end of 2014 to mid-2018. This change in groundwater level is likely due to an increase in precipitation since 2016, and water transfers, which reached 2.3 x 10(9) m(3) by 2017 from the South-North Water Transfer Project. At the scale of individual infrastructure projects, the Beijing subway, main roads and the Capital Airport all show severe uneven subsidence, which is a cause for concern. To our knowledge, this research is the first study using satellite SAR remote sensing methods to document the change in the land subsidence rate of Beijing. Starting in 2016, the rate notably declined, suggesting that subsidence mitigation strategies are beginning to have an effect.
资助项目	National Natural Science Foundation of China[41421001] ; National Natural Science Foundation of China[41525010] ; National Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41701458] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19040304] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA23090301]
WOS关键词	INSAR TIME-SERIES ; PERMANENT SCATTERERS ; AQUIFER-SYSTEM ; TERRASAR-X ; PLAIN ; URBANIZATION ; DEFORMATION ; EVOLUTION ; JAKARTA ; CITY
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000485747700001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69701]
专题	中国科学院地理科学与资源研究所
通讯作者	Lan, Hengxing
作者单位	1.Univ Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing, Peoples R China 3.West Virginia Univ, Dept Geol & Geog, Morgantown, WV 26506 USA 4.Simon Fraser Univ, Dept Earth Sci, Burnaby, BC, Canada 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 6.Changan Univ, Sch Geol Engn & Geomat, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Chaodong,Lan, Hengxing,Gong, Huili,et al. Reduced rate of land subsidence since 2016 in Beijing, China: evidence from Tomo-PSInSAR using RadarSAT-2 and Sentinel-1 datasets[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2019:27.
APA	Zhou, Chaodong.,Lan, Hengxing.,Gong, Huili.,Zhang, Youquan.,Warner, Timothy A..,...&Wu, Yuming.(2019).Reduced rate of land subsidence since 2016 in Beijing, China: evidence from Tomo-PSInSAR using RadarSAT-2 and Sentinel-1 datasets.INTERNATIONAL JOURNAL OF REMOTE SENSING,27.
MLA	Zhou, Chaodong,et al."Reduced rate of land subsidence since 2016 in Beijing, China: evidence from Tomo-PSInSAR using RadarSAT-2 and Sentinel-1 datasets".INTERNATIONAL JOURNAL OF REMOTE SENSING (2019):27.