WASP模型参数率定与敏感性分析

WASP是美国环境保护局提出的水质模型系统,能够用于不同环境污染决策系统中分析和预测各种水质状况.将WASP模型应用于长河水体富营养化分析,采用长河的实际监测数据,对WASP模型做了参数率定与模型验证.得出WASP模型具有易用性,适用于河流水体的富营养化模拟.为确定WASP模型富营养化模拟过程中对模拟结果影响较大的参数,进行了参数灵敏度分析.分析结果表明,影响浮游植物量的最主要参数为20℃浮游植物最大生长速率常数,水中碳源与叶绿素的比值次之.

Calbration and Sensitive Analysis on the Parameters of the WASP Model

WASP (the water quality analysis simulation program) model was a water quality simulating system recommended by United States Environmental Protection Agency. It can be applied to analyze and forcast kinds of water quality condition in different environmental pollution control system. This article introduced the WASP model applied in eutrophication analysis in Changhe River. By testing the parameters of the WASP model with the field measured data of Changhe River, WASP model was testified to be an effective water quality model used in eutrophication analysis. The sensitive analysis has been done to confirm the main factors affecting the simulated results of eutrophication. The result of sensitive analysis indicates that the main factor affected the concentration of phytoplankton is phytoplankton maximum growth rate constant 20℃(d-1), phytoplankton carbon-chlorophyll ratio is the second.