基于InSAR技术的吐鲁番盆地沉降监测与分析  

Subsidence monitoring and analysis in Turpan Basin based on InSAR technology

作　　者：李如仁[1] 宫旭辉 陈振炜 张过[2] 刘明霞 LI Ruren;GONG Xuhui;CHEN Zhenwei;ZHANG Guo;LIU Mingxia(School of Transportation and Surveying Engineering,Shenyang Jianzhu University,Shenyang 110168,China;State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China;Rail Transportation Affairs Department,Shenyang Urban and Rural Construction Service Center,Shenyang 110013,China)

机构地区：[1]沈阳建筑大学交通与测绘工程学院,沈阳110168 [2]武汉大学测绘遥感信息工程国家重点实验室,武汉430079 [3]沈阳市城乡建设事务服务中心轨道交通事务部,沈阳110013

出　　处：《测绘科学》2024年第12期167-177,共11页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41801397);国家重点研发计划项目(2021YFB3900604)。

摘　　要：针对PS-InSAR技术在大范围沉降监测中的不适用性以及SAR数据分辨率较低所带来的监测精度不足这两个问题,该文采用高分辨率RADARSAT-2数据和SBAS-InSAR技术,获取了吐鲁番盆地2016年8月—2019年9月的地面沉降情况,结果表明:(1)InSAR监测结果与CORS站监测基本一致,InSAR结果真实可靠;(2)吐鲁番盆地沉降面积约为935.79 km^(2),集中在火焰山以南部分,最大沉降速率约为0.13 m/a,最大累积沉降量约为0.25 m;(3)春末、夏季以及秋季早中期是发生地面沉降的主要时间段;(4)吐鲁番盆地沉降与农业发展、水资源的不合理利用、火焰山断层以及城市发展有关。研究结果可为地质灾害危险评价和吐鲁番盆地沉降治理提供参考。To address the limitations of PS-InSAR technology in large-scale subsidence monitoring and the insufficient monitoring accuracy caused by low SAR data resolution,this paper employs high-resolution RADARSAT-2 data and SBAS-InSAR technology to obtain ground subsidence information in the Turpan Basin from August 2016 to September 2019.The results indicate that:(1)The InSAR monitoring results are generally consistent with those obtained from CORS stations,confirming the authenticity and reliability of the InSAR data;(2)The subsidence area in the Turpan Basin is approximately 935.79 km^(2),primarily concentrated south of the Flaming Mountains,with a maximum subsidence rate of approximately 0.13 m/a and a maximum cumulative subsidence of approximately 0.25 m;(3)Ground subsidence mainly occurs in late spring,summer,and early to mid-autumn;(4)The subsidence in the Turpan Basin is related to agricultural development,unreasonable water resource utilization,the Flaming Mountains fault,and urban development.The research findings can provide valuable references for geological disaster risk assessment and subsidence mitigation in the Turpan Basin.

关 键 词：地面沉降 SBAS-InSAR 吐鲁番盆地 沉降因素 

分 类 号：P236.2[天文地球—摄影测量与遥感] P237.9[天文地球—测绘科学与技术]