摘要
以恭城河流域为应用实例,介绍了HEC-HMS模型在恭城河流域的构建方法和过程。分别构建两种HEC-HMS水文模型方案对恭城河山洪过程进行模拟并对比两种方案的模拟精度,结果表明HEC-HMS水文模型可应用于恭城河流域山洪预报;并且以初损后损法为产流模块、Snyder单位线法为直接径流模块、退水曲线法为基流计算模块、马斯京根法为河道汇流计算模块的方案在径流深精度、洪峰流量精度、峰现时差和确定性系数上均略优于以SCS曲线法为产流计算模块、SCS单位线法为直接径流计算模块、退水曲线法为基流计算模块、马斯京根法为河道汇流计算模块的组合方案。
Taking the Gongchenghe river basin as an example, the paper introduces the process and method for constructing the HEC-HMS model in this river basin. Two model schemes were constructed for simulating the flood process and for comparing the accuracy of the two schemes. The results show that the scheme of initial and constant rate loss, Snyder unit hydrograph, recession curve and Muskingum method is superior to that of SCS curve, SCS unit hydrograph, recession curve and Muskingum method in terms of the accuracies of runoff depth, peak flow, peak time and certainty coefficient.
出处
《红水河》
2017年第2期17-20,共4页
Hongshui River
关键词
水文模型
恭城河流域
洪水预报
HEC-HMS
Gongchenghe river basin
flood forecast
