摘要
以清江流域(渔峡口以上)为例,采用分布式水文模型HEC-HMS研究了模型参数自动率定功能,并选取参数优化的目标函数,以探讨目标函数的选取对模型模拟结果的影响,并分析其原因。结果表明,峰值加权均方根误差目标函数的模拟效果最佳,为选取其他洪水模拟参数优化目标函数提供了理论依据。
Taking Qingjiang River(Upstream of Yuxiakou) for an example,distributed hydrological model HEC-HMS is applied to study parameters automatic calibration function of the model.The objective functions with parameter optimization are selected to discuss the impact of objective function on model simulation results and analyze its causes.The results show that the simulation result of peak-weighted root mean square error function has the best effect.Thus,it provides theory evidence for selecting flood to simulate objective functions with parameter optimization.
出处
《水电能源科学》
北大核心
2010年第8期17-19,共3页
Water Resources and Power
基金
国家自然科学基金资助项目(40701024)
三峡大学研究生科研创新基金资助项目(200903)
