摘要
以汉江上游向家坪水文站以上流域为研究对象,通过对集总式模型Hymod的参数敏感性分析和多目标参数优化,分析了Hymod模型5个主要参数的敏感性特征,体现了该模型描述降雨径流过程特点的全面性,采用多目标遗传优化算法(NSGA-Ⅱ)对模型参数作多目标自动参数优化。结果表明,Hymod模型能较好地描述流域降雨径流过程特征,并能通过参数自动优化得到最优参数并取得理想的验证效果。
Taking the basin located upstream of Xiangjiaping hydrological station in Hanjiang River for an example,parameters sensitivity of the conceptual model Hymod is analyzed and the multi-objective parameter are optimized.The sensitivity analysis of five parameters of Hymod model is conducted to verify the characteristics of rain-runoff process.In addition,the multi-objective optimization algorithm NSGA-Ⅱ is used to calibration model parameters.The result shows that Hymod model performs well in describing the characteristics of rain-runoff process and the model can be calibrated by using optimization algorithm.The validation results are quite satisfactory.
出处
《水电能源科学》
北大核心
2010年第11期15-17,122,共4页
Water Resources and Power
基金
全球环境基金资助项目(TF053183)
国家自然科学基金资助项目(50721006)
"十一五"国家科技支撑计划基金资助项目(2006BAB04A07
2008BAB29B08)
