三水源新安江模型参数优化及其应用

Parameters Optimization and Application of Three-water Sources Xin'anjiang Model

三水源新安江模型含有比其他模型更多的参数,参数间的相互作用使其成为影响模型模拟结果的重要因素。为使人工模拟结果与实际水文测量数据及水文现象较为一致,基于三水源新安江模型结构及参数敏感性建立参数优化率定的目标函数,并应用于竹竿河流域,取得了较好的率定及校验结果,证明该模型及优化方法有效可行。

Three water Sources Xin＇an jiang Model has more parameters than other models.The interaction of parameters makes them become important factors to affect the simulation results in the model.In order to make artificial simulation results consistent with practical hydrographic survey data and hydrological phenomena,this paper establishes objective function about the parameter optimization based on three-water sources Xin＇anjiang model structure and parameters sensitivity.And then the model is applied to Zhuganhe Basin.It gets the better calibration and verification results,which proves the feasibility of the model and optimization method.