GIS与大气环境模型的集成及其应用

分析了GIS与环境模型集成的松散集成、紧密集成、完全集成等3种模式，论述了GIS与大气环境模型集成的组件式方法与服务式方法，对比了5种集成方法的优缺点，认为组件式集成方法具有较大优势，是目前流行的集成方法，服务式集成是未来的趋势. 基于组件式集成方法，采用GIS二次开发组件ArcGIS Engine 9.3开发了大气污染扩散模拟与预测系统，该系统充分利用了GIS的空间分析与可视化功能，实现了大气环境模型与GIS的紧密集成，以福建省为例进行了大气污染扩散模拟，取得了较好的模拟效果. 

Integration and Application of GIS and Atmospheric Environment Model

The three patterns (loose couple, seamless couple, and complete integration) of integrating GIS and environment model are analyzed. Also, the component-based method and service-based method of integrating GIS and atmospheric environment model are discussed. Component-based integration is advantageous over the other methods and is a universal method at present after comparing the advantages and disadvantages of the five integration methods. Component-based integration is utilized in integrating GIS and atmosphere environment model. However, the service-based method is likely to be the future integration trend. A prototype of GIS-based atmospheric pollution diffusion simulation and prediction system is implemented on the basis of component-based integration method using ArcGIS Engine 9.3. The system makes the best of powerful spatial analysis and visualization functions of GIS and realizes seamless integration between GIS and atmospheric environment model. Simulation of atmospheric pollution diffusion in Fujian province was carried out using the prototype system, and its effect was satisfactory.