半干旱半湿润流域水文模型应用与比较
首发时间:2012-03-07
摘要:将6种不同的水文模型分别应用于半干旱半湿润的大阁、戴营、阜平和东湾流域。结果表明,在大阁这样的超渗产流流域,没有一种水文模型能够成功应用,混合产流模型的精度稍高于蓄满产流模型;在戴营和阜平这样的混合产流流域,混合产流模型与蓄满产流模型的精度差不多;在东湾这样的半湿润流域,蓄满产流模型精度上升,混合产流模型精度下降。TOPMODEL和SAC模型在这些流域不能得到令人满意的结果。
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Application and comparison of hydrological models in semi-arid and semi-humid regions
Abstract:Six hydrological models were applied to Dage, Daiying, Fuping and Dongwan watersheds in semi-arid and semi-humid regions in China. The result shows that in some watersheds under infiltration-excess runoff mechanism such as Dage, none of these models can simulate the rainfall-runoff relationships successfully, the accuracy of mixed runoff models is little higher than that of stored-full runoff models; in some mixed runoff watersheds such as Daiying and Fuping, the accuracy of mixed runoff models is no better than that of stored-full runoff models; while in some semi-humid regions such as Dongwan watershed, the accuracy of stored-full runoff models increases whereas that of mixed runoff models decreases. TOPMODEL and SAC model can't achieve satisfactory results in these regions.
Keywords: applied hydrology;hydrological models;analysis and comparison;semi-arid and semi-humid regions
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