开源GIS支持下的气象灾害风险区划分析

近年来气象灾害频繁发生,给我国人民生活、经济发展带来严重威胁。灾害风险区划分析作为防灾减灾的基础工作,在我国逐渐展开。为探索一种基于开源GIS的县级区域气象灾害风险区划分析技术方案,首先分析开源GIS的发展状况,探讨了开源GIS的质量、性能及应用中需注意的法律因素等,而后以东营市河口区为例,选择QGIS、ILWIS等开源软件,基于区域灾害系统论构建不同气象灾害的分析模型及综合气象灾害分析模型,进行县级区域气象灾害风险区划分析,最终编制实验区气象灾害风险区划分级图。

Analysis of Meteorological Disaster Risk Zoning Based on Open GIS

In recent years, meteorological disasters occur frequently, and pose a serious threat to the people＇ s live and economic development. Disaster risk zoning analysis as the basis of disaster prevention and mitigation work, is studied in our country. For exploring a technical method for county meteorological disaster risk zoning based on open GIS, this thesis first analyzes the development of open GIS, and ex- plores the quality, performance and the legal factors need to be noticed in the application of open GIS. Then, it takes Hekou of Dongying city as the experimental area, uses open GIS software such as QGIS, ILWIS, constructs various and total reasonable model for meteorological disaster risk assessment based on the regional disaster system theory, does the county regional meteorological disaster risk zoning analysis and completes the preparation of the experimental zone meteorological disaster risk zoning classification map.