【作者】 牛全福； 程维明； 兰恒星； 刘勇； 颉耀文； 曹玉尧；

【Author】 NIU quanfu~(1,2,3),CHENG weiming~2,Lan hengxing~2,LIU yong~1,XIE yaowen~1 (1.College of Earth and Environmental Science Lanzhou University Lanzhou 730020; 2.State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;3.Gansu Provincial Electric Power Design Institute Lanzhou 730050)

【机构】 兰州大学资源与环境学院； 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室； 甘肃省电力设计院；

【摘要】 2010年4月14日发生在青海省的玉树地震,诱发了大量的次生地质灾害。利用灾前灾后的Quickbird遥感影像,并结合SRTM地形DEM数据和其他一些基础数据,采用监督分类、密度分割、面向对象等遥感技术进行地震次生灾害信息自动提取,利用GIS技术进行灾区孕灾环境专题信息提取,最后对研究区次生地质灾害的空间分布特征和发育规律进行了分析,探讨遥感结合GIS技术进行灾害信息提取的优越性。更多还原

【Abstract】 Yushu MS7.1 earthquake,occurred on 4 April 2010 in Qinghai province induced a kind of secondary geological disaster.Using Quickbird imaging of Pre-disaster and post-disaster,with SRTM-DEM and others to extract secondary geological disaster of Yushu Earthquake region based RS technology of supervised classification,density segmentation and object-oriented et,al.Environmental disasters of earthquake region are extracted by spatial analyst of GIS.Finally,analyse the features of spatial distribution with development rules of secondary geological disaster in study region.And discuss the advantage of extracting disaster information with RS and GIS together.更多还原