汉江流域分布式水循环模拟研究

Study on Distributed Hydrological Modeling of HanJiang River Basin

详细描述了汉江流域分布式水文模型构建和求解的过程,验证了WEP模型模拟研究区水循环的可行性。提出了"参数分区"的新理念,为研究参数不确定性空间变异提供了高效的模型空间结构。分别采用分割样本检验法和代表样本检验法对模型模拟结果进行检验。模拟结果的评价采用年径流总量模拟的误差RE、Nash指数及模拟的降雨径流相关系数个指标。

Described With detailed of the process of constructing and solving a new distributed hydrological model of Hanjiang River ba-sin. Study on the simulation feasibility of the region water cycle by WEP model. An efficient organizational structure based on ＂Parame- ters Zone＂ is designed to research spatial variation of parameters more easily. The simulation results were tested by segmentation meth-od of the test sample and representative sample method. Assessment of simulation results with three index, which is error RE, Nash in-dex and correlation coefficient between simulated runoff and observed runoff.