基于时序InSAR技术的信阳市中心城区地面沉降监测  

Land Subsidence Monitoring in the Central Urban Area of Xinyang City Based on Time-Series InSAR Technology

作　　者：沈毅 韩梦思 贺保斌 沈石凯 李旺[5] 张一菡 张兵兵 SHEN Yi;HAN Mengsi;HE Baobin;SHEN Shikai;LI Wang;ZHANG Yihan;ZHANG Bingbing(College of Geographic Sciences,Xinyang Normal University,Xinyang 464000,China;Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution,Xinyang Normal University,Xinyang 464000,China;Henan Microwave Remote Sensing and Resources Environment Monitoring Key Technology Engineering Research Center,Xinyang Normal University,Xinyang 464000,China;Hydrogeology Team of Hebei Coalfield Geology Bureau,Handan 056000,China;Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650031,China)

机构地区：[1]信阳师范大学地理科学学院,河南信阳464000 [2]信阳师范大学河南省水土环境污染协同防治重点实验室,河南信阳464000 [3]信阳师范大学河南省微波遥感及资源环境监测关键技术工程研究中心,河南信阳464000 [4]河北省煤田地质局水文地质队,河北邯郸056000 [5]昆明理工大学国土资源工程学院,云南昆明650031

出　　处：《信阳师范学院学报（自然科学版）》2024年第3期286-291,共6页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(42204030);河南省科技攻关计划项目(232102320280);信阳师范学院“南湖学者奖励计划”青年项目;河南省高校科技创新团队支持计划项目(22IRTSTHN010)。

摘　　要：基于小基线集合成孔径雷达干涉技术(SBAS-InSAR)对2018年11月至2022年10月间Sentinel-1卫星数据进行处理,获取了信阳市中心城区该时期的地面沉降变化,并利用永久散射体干涉测量技术(PS-InSAR)对沉降区的同名点进行验证。结果表明:PS-InSAR和SBAS-InSAR沉降结果保持了良好的一致性;信阳市中心城区整体呈现“老城稳定,新区沉降”的特征,其中羊山新区地表沉降最为明显;利用SBAS-InSAR技术进行城市沉降监测具有一定的适用性和可靠性,可为信阳市中心城区地表沉降的监测和预警工作提供参考。Based on the Small Baseline Subset Interferometric Synthetic Aperture Radar(SBAS-InSAR)to process Sentinel-1 satellite data from November 2018 to October 2022,which obtained the cumulative land subsidence in the central urban area of Xinyang.The Permanent Scatterer InSAR(PS-InSAR)was used to verify the homonymous points in the settlement area.The results showed that the settlement results of PS-InSAR and SBAS-InSAR maintained good consistency.The overall urban area of Xinyang City Center exhibited the characteristics of“stable old city,subsidence new area”,with Yangshan New Area having the most obvious surface subsidence.The use of SBAS-InSAR technology for urban subsidence monitoring has certain applicability and reliability,which can provide the reference for future monitoring and early warning of surface subsidence in the central urban area of Xinyang.

关 键 词：沉降监测 合成孔径雷达干涉技术(SBAS-InSAR) 永久散射体干涉测量技术(PS-InSAR) 信阳市 Sentinel-1 

分 类 号：P237[天文地球—摄影测量与遥感] P258[天文地球—测绘科学与技术]