作　　者： ; ; ;

机构地区： 北京大学环境科学与工程学院

出　　处： 《水土保持研究》 2006年第3期165-168,共4页

摘　　要： 水质模型参数灵敏度分析不仅是模型率定的必要前提,也为水质管理提供参考。WARMF模型是大型流域管理分布式机理模型,选定巢湖流域杭埠-丰乐河子流域为研究区域,通过流域概化将杭埠-丰乐河流域划分为37个汇流区单元、36个河段单元和1个湖泊单元。之后,以杭埠-丰乐河流域4号子流域及其河段为例,采用局部灵敏度分析方法对模型水文、泥沙、水质主要参数进行了灵敏度分析。根据灵敏度分析结果进行调参,可以大大节省模型参数的校核时间,并且提高精度。 Parameter sensitivity analysis of water quality model is the basis of model calibration,and can also provide reference to water quality management. WARMF （Watershed Analysis Risk Management Frame） is a distributed watershed management model. Hangbu River-Fengle River watershed of Chaohu Lake basin was selected as the research area. This watershed was divided into 74 units,which includes 37 subwatershed, 36 river segments and 1 lake unit. Partial sensitivity analysis was applied to study the sensitivity of main parameters of WARMF model,including hydrology,sediment, water quality,in the No. 4 subwatershed and No. 4 river segment of the selected study area. Based on the analysis result,efficiency of model calibration can be significantly improved.

关 键 词： 模型 参数 灵敏度分析 巢湖

领　　域： [天文地球] [水利工程] [天文地球]