Monitoring of ground deformation in Liulin district,China using InSAR approaches
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3期
页 面：264-283页
核心收录：
学科分类：08[工学] 0708[理学-地球物理学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 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：TS-InSAR subsidence measurement CBM
摘 要：Coalbed methane(CBM)exploration generally refers to a technique that extracts natural gas from coal *** development of CBM in Liulin,China,has experienced a significantly growth period during the past two *** research mainly focused on the coal geological background or CBM technique itself,while time series InSAR(TS-InSAR)technique was conducted in this work to study the potential land deformation induced by CBM extraction from 2003 to *** total,21 ALOS-1 PALSAR images(acquired from 22 December 2006 to 2 January 2011)and 14 ENVISAT ASAR scenes(captured between 29 October 2003 and 7 November 2007)were *** TS-InSAR outcome revealed that the annual deformation rates were ranging from 15 to−40 mm yr−1 over the study *** the time series deformation evolutions were analysed over 8 CBM sites(No.4 coal seam)out of 20,and the subsidence rates between 1.9 and−6.5 mm yr−1 were *** addition,the average subsidence rate and standard deviation among these eight measurements were−3.0 and 2.6 mm yr−1 respectively,suggesting that these CBM extraction sites were quite stable and no obvious subsidence had been observed during this eight-year period.
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