基于SBAS-INSAR技术的沈阳市城区地面沉降监测和分析  

Monitoring and Analysis of Land Subsidence in Shenyang City Based on SBAS-INSAR Technology

作　　者：邰贺[1] 王野[1] 敦力民[1] 赵昕 陈闯 赵舒扬 TAI He;WANG Ye;DUN Limin;ZHAO Xin;CHEN Chuang;ZHAO Shuyang(Shenyang Geotechnical Investigation&Surveying Research Institute Co.,Ltd.,Shenyang 110004,China)

机构地区：[1]沈阳市勘察测绘研究院有限公司,辽宁沈阳110004

出　　处：《测绘与空间地理信息》2022年第10期34-37,40,43,共6页Geomatics & Spatial Information Technology

基　　金：自然资源部数字制图与国土信息应用重点实验室开放基金(ZRZYBWD202110)资助。

摘　　要：基于2016年3月1日至2017年4月21日期间获取的33景COSMO-SkyMed卫星SAR数据(StripMap模式),采用SBAS-InSAR技术获取沈阳市城区地面沉降信息。结果表明,沈阳市建成区重点工程建设区域的沉降较大,共提取了267405个PS点,形变速率的分布规律满足正态分布,均值为-0.121 mm/a,中值为-0.22 mm/a,标准差为3.698 mm/a,选择典型的4个位置绘制多时相形变速率变化图,采用常规等级水准控制点验证解算精度,结果表明SBAS-INSAR技术适用于城区地面沉降监测和分析。Based on 33 COSMO-SkyMed Satellite SAR data(StripMap mode)obtained from March 1,2016 to April 21,2017,SBAS-InSAR technology is used to obtain land subsidence information in Shenyang City.The results show that the subsidence in the key project construction area of Shenyang built-up area is large.A total of 267405 PS points are extracted.The distribution law of deformation rate meets the normal distribution,with the mean value of-0.121 mm/a,the median value of-0.22 mm/a and the standard deviation of 3.698 mm/a.Four typical positions are selected to draw the multi temporal deformation rate change diagram,and the conventional level control points are used to verify the solution accuracy.The results show that SBAS-INSAR technology is suitable for monitoring and analyzing urban land subsidence.

关 键 词：SBAS-INSAR 沉降监测 形变速率 

分 类 号：P25[天文地球—测绘科学与技术] TB22[天文地球—大地测量学与测量工程]