基于SBAS-InSAR和光学遥感的天津市北部山区潜在滑坡识别研究  

Identification of Potential Landslides in the Northern Mountainous Area of Tianjin Based on SBAS-InSAR and Optical Remote Sensing

作　　者：王勇 邢振涛 李锁 闫勇 司甜 WANG Yong;XING Zhentao;LI Suo;YAN Yong;SI Tian(School of Geology and Geomatics,Tianjin Chengjian University,Tianjin 300384,China;Tianjin Geological Engineering Survey and Design Institute Co.,Ltd,Tianjin 300191,China)

机构地区：[1]天津城建大学地质与测绘学院,天津300384 [2]天津市地质工程勘测设计院有限公司,天津300191

出　　处：《灾害学》2025年第1期30-35,共6页Journal of Catastrophology

基　　金：天津市科技计划项目“面向青少年群体的北斗卫星导航系统专题科普宣传(C)”(21KPHDRC00070);天津市教委科研计划项目“天津北部山区地表形变时空变化与机理分析”(2021ZD001);国家级大学生创新创业训练计划项目“融合GNSS、ERA5、大气污染物的高时空分辨率的PM2.5浓度预测研究”(202310792010)。

摘　　要：以天津市北部山区为研究对象,开展潜在滑坡识别研究,利用差分干涉测量短基线集时序分析技术(SBAS-InSAR)处理2018-01—2022-08的56景Sentinel-1A数据,并结合2018—2022年的Landsat8光学遥感影像,分析形变与光学遥感影像特征以及NDVI,筛选出潜在滑坡区域。研究结果表明:基于SBAS-InSAR技术识别的天津北部山区的形变较大区域有20处,使用光学遥感影像结合各发育环境要素进行处理确定的区域有19处,其中5处经两种技术确认为滑坡隐患,通过对该5处沉降信息进行识别分析,该5处区域最大年形变速率可达-12 mm/a,需要进行重点监测预警,使用两种技术结合对滑坡隐患区域进行识别可以有效地提高识别准确度,为天津北部山区灾害监测提供新的方式。Taking the mountainous area in the north of Tianjin as the research object,the identification of potential landslide is researched,by using 56 Sentinel-1A data from 2018-01 to 2022-08 processed by SBAS-InSAR technology,and combining with the Landsat8 optical remote sensing images from 2018-2022,shape variable and optical remote sensing image features and NDVI are analyzed to screen the potential landslide area.The results show that:There are 20 large deformation areas identified by SBAS-InSAR technology in the northern mountainous area of Tianjin,19 areas identified by optical remote sensing images combined with various development environment elements,and a total of 5 areas identified jointly by the two technologies.These 5 areas are identified as potential landslide areas,through the identification and analysis of the settlement information of the 5 areas,the maximum annual deformation rate of the five areas can reach-12 mm/a,and it is necessary to conduct key monitoring and early warning.The combination of the two technologies can effectively improve the identification accuracy of potential landslide areas,and provide a new way for disaster monitoring in the northern mountainous area of Tianjin.

关 键 词：潜在滑坡 SBAS-InSAR 光学遥感影像 天津市北部山区 

分 类 号：X43[环境科学与工程—灾害防治] X915.5[天文地球—摄影测量与遥感] P236[天文地球—测绘科学与技术] P642.22