摘要
本文以黄河班多一级水电站库区地质灾害调查为例,利用RS与GIS技术进行地质灾害信息提取与分析。在对卫星影像信息进行增强处理的基础上,通过GIS数据管理和空间分析功能对多源数据进行叠加分析,利用可视化工具—虚拟地理信息系统(VirtualGIS)构建研究区三维场景,多方位、多角度挖掘地质灾害信息。结果表明:采用RS与GIS技术可以快速、准确、高效地提取地质灾害信息和与之相关的地表信息,实现地质灾害调查与分析的目的。
Taking the survey of geological hazards in Banduo,the first level hydroelectric power in Yellow River,as an example,this article utilizes the application of remote sensing and GIS technology in the extraction and analysis of geological hazards information.Based on the satellite image processing,it performs the superposition analysis of multi-source data through GIS data management and spatial analysis function.At the same time,with visualization tool―VirtualGIS,it constructs 3D scene of the research area and digs geological hazards information from multi-positions and multiple perspectives.The result indicates that,using the remote sensing and GIS technology we can get the geological hazards information as well as related surface information quickly,accurately,high effectively and realize the survey and analysis of the geological hazards.
出处
《测绘科学》
CSCD
北大核心
2007年第1期130-131,134,共3页
Science of Surveying and Mapping
基金
首都师范大学北京市资源环境与地理信息系统重点实验室开放基金
四川省学术与技术带头人培养基金(2200319)
四川省青年基金(06QZ026-14)联合资助项目
关键词
RS
GIS
地质灾害
三维地形可视化
空间分析
remote sensing
GIS
geological hazards
3D terrain visualization
spatial analysis
