基于大气污染扩散模型的空气污染多维动态可视化表达研究  

A study on multi-dimensional dynamic visualization of air pollution based on atmospheric pollution dispersion model

作　　者：胡亚[1] 朱军[1] 林珲[2] 徐丙立[3] 胡明远[2] 

机构地区：[1]西南交通大学地球科学与环境工程学院遥感信息工程系,成都610031 [2]香港中文大学太空与地球信息科学研究所香港 [3]装甲兵工程学院信息工程系,北京100072

出　　处：《高技术通讯》2013年第7期728-734,共7页Chinese High Technology Letters

基　　金：国家自然科学基金(41271389,41271402);中央高校基本科研业务费专项资金科技创新研究(SWJTU11CX061)资助项目

摘　　要：针对现有空气污染可视化表达方法不能有效集成地理信息、可视化效果差、信息维度低的问题,基于大气污染扩散模型模拟计算结果进行了三维空间空气污染多维动态可视化表达研究,提出了空气污染的多维动态可视化表达方案,详细论述了空气污染研究区域三维地理场景构建、污染浓度值与颜色的映射、基于切片的空气污染表达、基于立方体的空气污染表达、任意垂直线/面的空气污染表达等5种空间污染可视化表达方法与关键技术。最后以珠三角空气污染扩散模拟为例,开发了原型系统,进行了5种时空可视化表达与分析试验。试验结果表明,所采用的技术方案能够有效集成高精度大范围地理信息,能实现较好的空气污染可视化表达效果,能有效反映空气污染的时空分布,可以为空气污染管理人员提供有效的决策支持。To solve the problems that the existing methods for visualizing air pollution can not effectively integrate geo graphic information and can not achieve good visual effects and highdimension information, a research on multidi mensional dynamic visualization of air pollution in a threedimensional space was done, based on the simulation re suits of the atmospheric pollution dispersion model, and a scheme for multidimensional dynamic visualization of air pollution was proposed. Five key technologies for visualization of air pollution, named as threedimensional geo graphic scene construction for studying of air pollution, color mapping of pollution concentrations, slicesbased vi sualization of air pollution, cubesbased visualization of air pollution and visualization of air pollution based on any vertical line or vertical plane, were described in detail. A prototype system was developed to implement five spatial and temporal visualization approaches for air pollution in the Pearl River Delta. The results prove that with the tech nologies addressed in this paper, highprecision and largescale geographic information can be effectively integrat ed, a good visualization of air pollution can be achieved, the spatial and temporal distribution of air pollution can be effectively reflected and effective decision supports for air pollution management can be provided.

关 键 词：空气污染 多维动态 可视化 大气污染扩散模型 

分 类 号：X131.1[环境科学与工程—环境科学]