Sentinel-1卫星监测黄土坡滑坡体散射体变形  

Monitoring the slow landslide deformation by the permanent scatterers in Badong Huangtupo with Sentinel-1 data sets

作　　者：马思捷 李陶[1] 刘杰 王明洲 单强 汪晶[1] MA Sijie;LI Tao;LIU Jie;WANG Mingzhou;SHAN Qiang;WANG Jing(GNSS Research Center,Wuhan University,Wuhan 430079,China;Shenzhen Water Planning and Design Institute Co.,Ltd.,Shenzhen,Guangdong 518000,China)

机构地区：[1]武汉大学卫星导航定位技术研究中心,武汉430079 [2]深圳市水务规划设计院股份有限公司,广东深圳518000

出　　处：《测绘科学》2022年第1期95-101,共7页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(42074031,41674032)。

摘　　要：针对如何全面地提取滑坡体的运动趋势,评估当前多重手段对滑坡的整治效果问题,该文以湖北巴东县黄土坡古滑坡为例,采用分年度提取PS点的方法,从哨兵雷达卫星时序数据中提取了黄土坡上残留建筑物、建筑物遗址、变电站等目标构成的强散射体点目标。通过2018年至今的哨兵雷达卫星时序数据分析结果显示,滑坡前缘的两个子滑坡体的沉降速率从2018年的-15 mm/a,降至2019年之后的约-10 mm/a,表明滑坡体上建筑物拆除形成的重力卸载减缓了滑坡体蠕动趋势。In order to precisely extract the movement trend of the landslide and evaluate the multiple treatment effect on the landslide,this paper takes the Huangtupo ancient landslide as an example,which located in Badong County,Hubei Province.PS points among the remaining buildings,building ruins and transformer substations in Huangtupo area are extracted from Sentinel-1 data since 2018,for the analyzing of landslide area the moving trend.The results show that the deformation rate of the PS points near the landslide front area is-15 mm/a in 2018,and slow down to-10 mm/a after 2019.It indicates that with the building removal and the combining treatment made a significant positive effect for slowing down the landslide movement.

关 键 词：哨兵雷达卫星 永久散射体 滑坡 巴东 建筑物遗址 变形 

分 类 号：P237[天文地球—摄影测量与遥感]