基于遥感技术的滑坡灾害监测及智能预警分析

Landslide disaster monitoring and intelligent early warning analysis based on remote sensing technology

高分遥感技术可大范围获取地质灾害体及周边区域的地形地貌数据,研判灾害体外在的影响因素和重大的地形地貌变化,周期性分析滑坡灾害隐患点并开展跟踪对比。本文采用国产高分辨率遥感数据,在四川省攀西地区开展滑坡孕灾致灾演变及周期监测分析。结果表明,该滑坡于2015年启动变形,2016年加速变形,2017年和2018年较小幅度变形。建议滑坡周边地区居民尽快搬迁,相关部门在搬迁实施前提高周期监测频率。

High-resolution remote sensing technology can be used to obtain topographical and geomorphological data of geological disaster bodies and surrounding areas from a wide area,study external factors affecting the disaster and major topographical and geomorphological changes,periodically analyze hidden hazard points of landslide disasters,and carry out tracking and comparison.Domestic high-resolution remote sensing data is utilized to carry out landslide disaster evolution and periodic monitoring analysis of a landslide in Panzhihua-Xichang area,Sichuan.The results show that the landslide started to deform in 2015,the landslide deformation accelerated in 2016,and the deformation in 2017 and 2018 was small.It is recommended residents around the sliding area should be relocated as soon as possible.Prior to the relocation,the frequency of periodic monitoring should be increased.