摘要
将为大流域开发的一个具有物理基础的BTOPMC分布式水文模型应用于史灌河流域的黄泥庄集水区,检验该模型在小流域的适宜性,并对模型参数进行敏感性分析。模拟结果表明,对小流域径流总量较精确,径流系数误差很小,为模型参数率定提供指导。
The block-wise use of the TOPMODEL with the Muskingum-Cunge routing method （BTOPMC） is a physically based distributed hydrological model developed for large river basins. In this study BTOPMC model was used in Huang Nizhuang catchment which lies in Shiguan River Basin to investigate the model applicability in small catchment. The results show that precision of simulation is not very high,but simulated runoff is accurate,and the runoff coefficient is more similar to the observed one. Compared to the observed discharge, model performed very well in wetness year which was characterized by large rainfall,centralized precipitation period and large flood peak,while badly in droughty year with little rainfall ,dispersive rainfall period and small flood peak. The result of parameters sensitivity analysis shows that the decay coefficient（m） and roughness （n0） have more effect on model output ,belong to sensitive parameters. The other parameters are not sensitive relatively.
出处
《水电能源科学》
2008年第1期5-8,36,共5页
Water Resources and Power
基金
国家重点基础研究973计划基金资助项目(2006CB400502)
