摘要
作为GIS技术应用的一个方向 ,作者经过多年的研究 ,利用GIS强大的空间分析功能和空间数据库管理能力 ,基于MAPGIS地理信息系统软件及其提供的二次开发函数 ,通过信息量模型与GIS技术的有机结合 ,实现了区域地质灾害空间预测制图与分析的自动化系统 ,即地质灾害信息分析系统。该系统具有进行任意图形边界的多图层矢量数据叠加功能 ,克服了地质灾害空间预测中因栅格数据叠加而产生的误差 ,使预测过程和预测结果更符合地质灾害发生的地质背景。文章以我国地质灾害高发区的陕西省旬阳地区为例 。
Based on the author′s studies in the last years, Information Analysis System (IAS) for regional geo hazard prediction has been developed which is explored on the bases of Software MAPGIS. The key model for geo hazard prediction is the unification of Information Value Model and the secondary exploration functions supplied by MAPGIS. IAS has realized the vector superposition of multiple map layers in terms of DTM and management of spatial database, which overcomes the limitation by grid superposition. This developed system can precisely fit with the geological and geographic boundaries and can improve predictive precision. As the case study, the paper deals with the regional landslide hazard zonation in Xunyang County, Shanxi.
出处
《中国地质灾害与防治学报》
CSCD
2001年第3期82-86,共1页
The Chinese Journal of Geological Hazard and Control
基金
国家自然科学基金资助项目 (4 0 0 72 0 84)
