地理空间信息2025，Vol.23Issue(7)：6-10,5.DOI:10.3969/j.issn.1672-4623.2025.07.002
介休—宋古地下水漏斗区地面沉降InSAR监测与成因分析
InSAR Monitoring and Cause Analysis of Surface Subsidence in the Jiexiu-Songgu Groundwater Funnel Area
摘要
Abstract
In order to monitor long-term surface subsidence in Jiexiu-Songgu groundwater funnel area,we used SBAS-InSAR technique to process 139 Sentinel-1A TOPS images,and obtained the surface subsidence speed and cumulative subsidence amount in the Jiexiu-Songgu groundwater funnel area from March 2017 to December 2021.We verified the reliability of monitoring results by comparing the GNSS measurement results of the same period.The findings showed that①during the monitoring period,the surface subsidence in the Jiexiu-Songgu groundwater funnel area was obvious,and the range continued to expand.The maximum surface subsidence speed reached 90 mm/a,and the cumulative subsidence amount reached 340 mm.②Surface subsidence was mainly distributed on cultivated land and construction land.The main driving factor was the decline of groundwater level caused by excessive exploitation of groundwater.The spatial distribution of surface subsidence was consistent with the contour lines of groundwater level decline funnel.③Differential subsidence existed on both sides of the Sanquan,Dongyang and Hongshan-Fancun fault zones,suggesting fault influence on subsidence distribution.关键词
SBAS-InSAR/地面沉降/介休—宋古地下水漏斗区/Sentinel-1A/驱动因素Key words
SBAS-InSAR/surface subsidence/Jiexiu-Songgu groundwater funnel area/Sentinel-1A/driving factor分类
天文与地球科学引用本文复制引用
曾羚,唐伟..介休—宋古地下水漏斗区地面沉降InSAR监测与成因分析[J].地理空间信息,2025,23(7):6-10,5.基金项目
国家自然科学基金资助项目(42374023) （42374023）
中央高校基本科研业务费专项资金资助项目(2024ZKPYDC06). （2024ZKPYDC06）
