| 摘要: |
| 【目的】建立水污染可视化扩散模型，以刻画水污染突发事件的复杂性及满足其应急决策平台对可视化的需求。【方法】构建基于元胞自动机和智能体的三维水污染可视化扩散模型，用元胞自动机刻画研究区流域及所在区域地形，并从元胞空间、元胞状态、演化规则方面扩展普通元胞自动机模型，应用水质Agent描述流域中携带污染物的水体，在此基础上结合3S技术充分展现污染物的扩散运移过程，并将文中模型在渭河宝鸡段水污染事件中进行实例应用。【结果】基于元胞自动机和智能体的三维水污染可视化扩散模型充分展现了流域水污染扩散模拟现象的动态性、复杂性、非线性特点。模型在渭河宝鸡段水污染事件中的应用表明，静态水面元胞层和水下元胞层以及动态水质Agent的结合，简化了污染物在水面及水下不同的扩散运移现象，所建模型合理、可靠，能有效预测及模拟污染物的运移扩散过程；同时利用3S技术对流域空间信息进行了展示分析，满足突发水污染事件应急平台对事件模拟高效率、可视化的要求。【结论】所建模型可以为突发水污染事件提供一种预测和模拟方法。 |
| 关键词: 水污染 可视化 模拟仿真 元胞自动机 智能体 3S技术 |
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| 基金项目:国家自然科学基金项目(51079120,51109177,51109175);公益性行业科研专项(201001011);教育部人文社会科学研究青年基金项目(10XJCZH002);陕西省社会科学基金项目(11D041);西安理工大学优秀博士学位论文基金项目(106-211105) |
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| Visualization simulation of water pollution based on Cellular Automata and Intelligent Agent |
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| Abstract: |
| 【Objective】The study was to establish a visualized diffusion model of water pollution for depicting the complexity of emergent water pollution incidents and meeting the visual needs of the emergent decision platform.【Method】The 3D visualization of water pollution diffusion model based on Cellular Automata(CA) and Intelligent Agent (IA) was built.CA depicted the study area in the basin and regional terrain,the common CA model was expanded from the cellular space,state and evolution rule and the water with pollutants in river basin was described by IA.Then 3S technique was used to show the complete contaminant transport process.【Result】The 3D visualized model of water pollution diffusion based on CA and IA fully demonstrated the dynamics,complexity and non linear characteristics of the river basin water pollution diffusion modeling.The model used in Weihe River pollution incident reflected that the static surface cellular layer,underwater cellular layer and dynamic WaterAgent together simplified the different pollutants in the surface and underwater diffusive transport phenomena.It was reasonable,reliable,and effective to predict and simulate the pollutant transport in the diffusion process.Meanwhile,the 3S technology was used to show and analyze the watershed spatial information which met the high efficiency and visualized requirements towards incident simulation of the sudden water pollution emergency platform.【Conclusion】The model was constructed to provide a predicting and simulating method for sudden water pollution incidents. |
| Key words: water pollution visualization simulation Cellular Automata agent 3S technology |
