Topmodel模型在柬埔寨典型区域的应用研究

以柬埔寨境内3S河流域(3个子流域分区)和湄公河流域上段为研究区域,探讨了Topmodel在缺资料、少资料地区的应用。采用水文学方法、天气发生器以及再分析数据获取研究区域1980~2015年的气象水文长系列资料,将其作为Topmodel模型的输入,对径流过程进行了模拟。研究表明月序列确定系数高于日序列确定性系数,且都达到乙级标准。再利用该模型对研究区域的9个子流域的水资源量进行了模拟分析,结果表明Topmodel模型具有较好的适用性和良好的模拟效果,模拟结果能够反映流域水资源特性。

Application of Topmodel in typical areas of Cambodia

This paper takes “3S ” river watershed and upper Mekong River in Cambodia as the study area and discusses the application of Topmodel in these ungauged areas. Long series meteorological and hydrological data of the study area in 1980~2015 are obtained by hydrology methods, weather generator and reanalysis, and input into the model to simulate the runoff process. The study shows that the deterministic coefficient of monthly sequence is higher than that of daily sequence, and both of them reach grade B. Water resources of 9 sub-basins of the study area are simulated by the model and the results show that Topmodel has good applicability and simulation effect, which can reflect the water resources characteristics.