桂林理工大学学报2025，Vol.45Issue(6)：902-908,7.DOI:10.3969/j.issn.1674-9057.2025.06.012
基于时序SAR影像的桂林市地表沉降监测
Surface subsidence monitoring based on time series SAR images in Guilin
摘要
Abstract
PS-InSAR and SBAS methods are applied to monitor surface deformation in Guilin from 2017 to 2020,using 36 Sentinel-1A images and a 30 m-resolution SRTM DEM.Deformation patterns and their temporal evolution are characterized through analysis of spatial distribution and deformation rates.The results show good spatial a-greement between the deformation zones identified by the two methods in terms of location and magnitude.Integra-tion with urban land-use data indicates that subsidence is primarily attributed to increased in filling of loading and groundwater extraction.The primary subsidence area located in north of Guanghui Village in Qixing District,ex-hibites a cumulative displacement of about 19 mm and a max deformation rate of-11.1 mm/a over the study peri-od.The secondary subsidence area is in the northeast part of Shuita shan(Diecai District),shows greater deform-ation,with a cumulative displacement of about 23 mm and a max deformatim rate of-13.7 mm/a.关键词
Sentinel-1A/沉降/PS-InSAR/SBAS-InSAR/桂林Key words
Sentinel-1A/subsidence/PS-InSAR/SBAS-InSAR/Guilin分类
天文与地球科学引用本文复制引用
朱强,兰艳萍,高二涛,陈仕熹,肖云志,邝宏远..基于时序SAR影像的桂林市地表沉降监测[J].桂林理工大学学报,2025,45(6):902-908,7.基金项目
国家自然科学基金项目(21976043 （）
42201463 （）
42371341) （）
广西科技计划项目(2024GXNSFBA010172 （）
2025GXNSFAA069642) （）
广西高校中青年教师科研基础能力提升项目(2023KY0265) （2023KY0265）
广西空间信息与测绘重点实验室开放基金(21-238-21-26) （21-238-21-26）
