突发性水污染事故的时空模拟及可视化  

Spatio-temporal Simulation and Visualization of Sudden Water Pollution Accident

作　　者：许剑辉[1] 解新路[1] 付媛洁[1] 李艳杰[1] 

机构地区：[1]汕头大学土木工程系,广东汕头515063

出　　处：《中国农村水利水电》2012年第8期52-55,共4页China Rural Water and Hydropower

基　　金：广东省科技计划项目(2010B030900007)

摘　　要：针对突发性水污染事故,提出一种适用于河流突发性水污染应急处理的污染扩散模型,采用六点隐式差分格式进行模型数值求解。结合实例,模拟了突发性水污染事故中污染物的时空分布,定量模拟了河流下游不同地点处污染物到达的时间和浓度值,并利用水质标识指数法对污染物浓度进行评价,最后结合GIS(地理信息系统)技术实现了评价结果的实时动态可视化。A pollution diffusion model which suits sudden water pollution emergency treatment of river is proposed. Six-point implicit difference scheme is used for numerical solution of the model. Combining the instance, the spatio-temporal distribution of contami- nants in a sudden water pollution accident is simulated, the time and concentration of pollutants in the lower reaches of the river is quantitatively predicted, and the pollutant concentrations using water quality identification index method are evaluated. Finally the re- al-time dynamicvisualization of results combing GIS is visualized.

关 键 词：时空模拟 水质模型 六点隐式差分 GIS 

分 类 号：X522[环境科学与工程—环境工程]