摘要
本文筛选了天津市北部山区崩塌和泥石流两种典型的地质灾害点,分别采用图像全站仪和无人机低空遥感技术进行监测,并对具体应用效果进行分析。图像全站仪对崩塌体进行动态监测,监测精度可到mm级,解决了地质灾害监测人员对难以到达的监测点的监测,确保了监测人员的安全。无人机低空遥感技术对泥石流进行区域监测,监测精度可到cm级,其获取的DOM和DSM能准确把握泥石流灾害周围地形情况和松散堆积物的分布情况,实现对被监测体的整体面域监测。本工作是地质灾害遥感监测的典型示范应用,对后续开展地质灾害调查监测具有一定的借鉴意义。
Select two typical geological disaster points of collapse and debris flow in the northern mountain area of Tianjin to monitor by using image total station and UAV low altitude remote sensing,and analyze the specific application effect.The collapse monitoring accuracy by the image total station can reach mm level,which solves the points that are difficult to reach,and ensures the safety of the monitoring personnel.The UAV low altitude remote sensing technology monitors the debris flow area with the accuracy of cm level.which can realize the overall area monitoring and quickly grasp the terrain around the debris flow disaster and the distribution of loose deposits by DOM and DSM.The work done in this paper has formed a typical demonstration application of geological disasters monitoring used remote sensing,which has certain reference significance for subsequent geological disasters monitoring.
作者
张志军
陈楚
王琳
姜兴钰
陈香
ZHANG Zhijun;CHEN Chu;WANG Lin;JIANG Xingyu;CHEN Xiang(Tianjin Geomatics Research Center,Tianjin 300381,China;Tianjin Center,China Geological Survey(North China Center for Geoscience Innovation),Tianjin 300170,China;CGS Key Laboratory of Costal Geo-Environment,Tianjin 300170,China;Tianjin Key Laboratory of Coast Geological Processes and Environmental Safety,Tianjin 300170,China;Tianjin Institute of Surveying and Mapping Company Limited,Tianjin 300381,China)
出处
《华北地质》
2023年第4期76-82,共7页
North China Geology
基金
天津市国土资源和房屋管理局项目“天津蓟县北部山区地质灾害遥感监测”(国土房任[2013]2号)。
关键词
遥感技术
地质灾害
图像全站仪
无人机
天津北部山区
remote sensing
geological hazard
image total station
UAV
Northern Mountain Area of Tianjin
