基于GIS的地质灾害危险性预警系统研究  

Study on GIS-Based Early Warning System of Geological Hazard Risk

作　　者：王万平[1] 

机构地区：[1]陕西交通职业技术学院,陕西西安710018

出　　处：《地理信息世界》2013年第3期86-88,97,共4页Geomatics World

基　　金：国家自然科学基金项目(4053021)资助;国土资源大调查项目(121201064140)资助

摘　　要：将GIS技术应用于区域性地质灾害预测评价,可提高区域地质灾害灾情评估研究的现代化水平和实际操作的效率,为区域地质环境管理和地质灾害评估的信息化提供支撑,有利于将区域内分散的大量数据资料集成共享,提高数据资源的利用价值。基于ArcGIS强大的数据库管理能力和空间分析功能,提高灾害预测的准确性和缩短评价周期,对于地质灾害的早期预警研究具有重要现实意义,有助于提高对地质灾害的防范能力。选取了某地1999年和2004年两次降雨数据,对该系统进行验证,获得了很好的效果。GIS technology applied to the prediction and evaluation of the regional geological disasters can improve the level of modernization in the study on the regional geological hazard assessment and its operational efficiency, provide support for regional geological environmental management and geological hazard assessment informationization, which is good for integrating and sharing a large amount of decentralized data in the region and increase the value of data and resource utilization. On the basis of powerful database management and spatial analysis capabilities of ArcGIS-based, to improve forecast hazard accuracy and to condense the period of hazard evaluation can improve the prevention for geological disaster, which has important practical significance for the early warning of geological disaster. In this paper, twice rainfall data in 1999 and 2004 in the same place were selected and this system was verified systematically. The effects are remarkable.

关 键 词：GIS 地质灾害 预警系统 数据库 

分 类 号：P208[天文地球—地图制图学与地理信息工程]