【摘要】 提出了一种有效模拟、可视化河流一维水质时空动态变化趋势的方法:首先将研究区河流分段,根据流域水环境、水动力及排污状况,利用WASP7.4水质模拟模型模拟各河段水质动态变化情况,并将模拟结果输出为水质变化时间序列表,在ArcGIS的追踪分析扩展模块中与空间数据联结,实现了水质等级时空变化状况的动态显示,可为河流水质管理提供决策支持。更多还原

【Abstract】 To control water pollution and improve the water environment,the premise is a clear understanding of a region′s current and future water quality conditions.An effective method of simulating and visualizing the dynamic changes of one dimensional water quality in time and space was proposed.Firstly the rivers were segmented in study area on the basis of the hydrological conditions.Then according to the initial water quality conditions,basin water environment,hydrological condition and situation of sewage disposal,the dynamic changes of river water quality in a period of time were simulated using WASP water quality simulating model.The output results need do some necessary conversion to facilitate the following work.Finally the tracking analysis module of ArcGIS was used to visualize the simulation results in time and space respectively.This method is also applicable to two-dimensional water quality diffusing.The results of this research would provide effective decision-making support to water environmental management agency for monitoring and reducing the water pollution.更多还原