桂林理工大学学报2024，Vol.44Issue(2)：282-287,6.DOI:10.3969/j.issn.1674-9057.2024.02.013
SBAS-InSAR在岩溶区地面沉降监测中的应用
Application of SBAS-InSAR in monitoring ground subsidence in karst areas:a case from Jiangzhou District of Chongzuo
摘要
Abstract
The 25 scenes of Sentinel-1A data taken in 2020 were processed by SBAS-InSAR,and the land sub-sidence information in Jiangzhou District of Chongzuo is obtained.The causes of deformation are compared and analyzed by high-resolution remote sensing images from the same period of time.The results show that in terms of deformation rate,the maximum deformation rate in a small area of Jiangzhou District is-40.96 mm/a,the maximum deformation rate in central area is-30.00 mm/a and presents a large-scale and continuous deforma-tion,and the maximum deformation rate in northern part of the city is 10.00 mm/a and has a rising trend in some areas.Compared with measurements of CORS,the maximum difference between inversion results of SBAS-InSAR and settlement amount of CORS station is 2 mm,and the minimum difference is-3 mm.The results ob-tained by the two methods are basically consistent,which verifies the feasibility of SBAS-InSAR for ground set-tlement in karst areas and can effectively monitor ground settlement.关键词
SBAS-InSAR技术/地面沉降/累计形变量/监测Key words
SBAS-InSAR/land subsidence/accumulated settlement/monitoring分类
天文与地球科学引用本文复制引用
宁文怡,韦梁盛,贺雨晴,蒋宇雯..SBAS-InSAR在岩溶区地面沉降监测中的应用[J].桂林理工大学学报,2024,44(2):282-287,6.基金项目
国防科工局高分辨率对地观测系统重大专项(84-Y40G07-9001-15/18) （84-Y40G07-9001-15/18）
广西科技重大专项(桂科AA18118048) （桂科AA18118048）
