遥感地质解译与GIS在重大地质灾害中的应急调查

摘要

Taking the super large-scale landslides occurred in Guanling in Guizhou Province as an example, DEM,satellite images and aerial photo images before and after the landslide are comparatively analyzed.Geologic features,forms,scales and three-dimensional models of the landslide mass are obtained by information mining for the two-period images and digital elevation models by means of geology interpretation and GIS technologies.Condi-tions in disaster-affected areas are also accurately evaluated,which effectively plays the role of geology interpreta-tion and GIS for emergency survey in serious geological disasters,and provides references and demonstrations for e-mergency survey in serious geological disasters in the future.%以贵州省关岭特大型滑坡为例，对比分析灾害发生前后DEM、卫星影像、航拍影像，利用地质解译和GIS技术对两期影像和数字高程模型的信息挖掘，获取滑坡体的地质特征、形态、规模、三维模型等，并准确评估受灾情况，有效发挥了地质解译与GIS在重大地质灾害应急调查中的作用，为今后重大地质灾害中的应急调查提供参考、示范。