Mapping land subsidence over the eastern Beijing city using satellite radar interferometry
作者机构：Geoscience and Earth Observing System Group(GEOS)School of Civil and Environmental EngineeringUNSW AustraliaSydneyAustralia Department of Surveying EngineeringGuangdong University of TechnologyGuangzhouPeople’s Republic of China
出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)
年 卷 期：2018年第11卷第5期
页 面：504-519页
核心收录：
学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 0708[理学-地球物理学] 0835[工学-软件工程] 0704[理学-天文学] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：This research was supported under Australian Research Council’s Discovery funding scheme[project number DP130101694] JAXA PI investigation project 1419–Automated interferometric analysis of L-band SAR satellite data for operational earthquake and volcano monitoring
主 题：Subsidence Beijing groundwater SAR interferometry
摘 要：Beijing City has suffered from groundwater-induced subsidence since the late 1930s and the over-exploration of groundwater could lead to subsidence as much as−12.0 cm yr−*** studies on the ground deformation at Beijing City mainly focused on the period before the year of 2014 when a mega-engineering project was launched to reduce water shortage in *** study the most recent ground deformation,19 L-band ALOS-1 PALSAR images(June 2007–January 2011),24 C-band Sentinel-1 SAR images(June 2015–November 2016)together with 9 ALOS-2 PALSAR acquisitions(September 2014–February 2017)were analysed in this *** measurements were exploited to verify the ALOS-1-based time series InSAR(TS-InSAR)result while Sentinel-1 and ALOS-2 result were cross-verified with each ***,the whole study area was divided into four sub-zones,and the result indicated that the subsidence rates over five townships,Cuigezhuan,Jinzhan,Liyuan,Songzhuang and Yanjiao were accelerating and more attentions should be *** the contrary,the town centre of Douge Zhuang township experienced a decreasing trend between these two ***,the time series measurements with respect to five selected measurement points and the profile line along the subsidence hot spots were analysed.
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