本文利用。感技术和GIS技术的结合，通过对震前和震后的。感影像进行处理，经过几何纠正等预处理后，对比前后的灾区影像，得出基本的滑坡灾害信息，利用该区域的DEM高程信息，对受灾区域进行三维可视化的显示，对滑坡区域进行立体展示，对灾害体的位置、范围等信息表现更准确、清晰展现，并利用GIS的3D分析功能，对引起滑坡的区域的面积和体积进行粗略的估算。%This article get the basic information of landslide by utilizing the combination of remote sensing technology and GIS technology, dealing with remote sensing graph of before and after the earthquake,then preprocessing like geometric correction and comparing images of the disaster area after the earthquake with the before;make use of DEM elevation data of the diaster area to display 3D visualization image of the affected area and the landslide,which shows the information of the disaster-affected body such as location and scope more accuratly and more clearly;a rough estimate the acreage and volume of the landslide by using the 3D analysis function of GIS is also in this paper.
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