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首页> 外文期刊>Hydrological ProcHydrological Processesrnesses >Numerical investigations on the relationships between watershed characteristics and water balance model parameters: searching for universal relationships among regional relationships
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Numerical investigations on the relationships between watershed characteristics and water balance model parameters: searching for universal relationships among regional relationships

机译：流域特征与水平衡模型参数之间关系的数值研究：寻找区域关系之间的普遍关系

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摘要

The present study attempts to identify universal relationships between the geographical characteristics of a basin and the streamflow within a basin by using the parameter regionalization method of a water balance model, with the aim of gaining hydrological knowledge that might enable predictions of streamflow in ungauged basins. To this end, we first revisited existing regional relationships between the parameters of a Tank model and the geographical characteristics in Japanese mountainous basins, and translated the regional relationships between the geographical characteristics of a basin and streamflow. Second, we used a physically distributed rainfall–runoff model to perform a sensitivity analysis on the effect of the geographical characteristics of a hypothetical basin on its streamflow, with the aim of obtaining physically explainable relationships between these factors. Finally, we selected regional relationships that were also explained in the sensitivity analysis as potentially representing universal hydrological knowledge that might help to predict streamflow in ungauged basins. As a result, we obtained the following potentially universal hydrological knowledge: (1) the fraction of surface flow is less in large basins than in small basins; (2) the infiltration at the ground surface is higher if a basin is covered by soil with a high vertical permeability; (3) the fraction of prompt interflow is higher if a basin is covered by soil with a high horizontal permeability; (4) the fraction of delayed interflow is lower in large basins than in small basins and (5) the storage capacity at the ground surface is high if the ground surface is very rough. Copyright © 2011 John Wiley & Sons, Ltd.
机译：本研究试图通过使用水平衡模型的参数区域化方法来识别流域的地理特征和流域内的水流之间的普适关系，目的是获得水文知识，从而可以预测未流域的水流。为此，我们首先重新研究了Tank模型参数与日本山区流域的地理特征之间的现有区域关系，并转换了流域的地理特征与流量之间的区域关系。其次，我们使用物理分布的降雨径流模型对假设盆地的地理特征对其流量产生的影响进行敏感性分析，以期获得这些因素之间的物理可解释的关系。最后，我们选择了在敏感性分析中也被解释为潜在代表普遍水文知识的区域关系，这些知识可能有助于预测未灌流盆地的水流。结果，我们获得了以下潜在的普遍水文知识：（1）在大盆地中，地表水流比例要小于在小盆地中； （2）如果盆地被垂直渗透率高的土壤所覆盖，则地下的渗透率更高； （3）如果盆地被水平渗透率高的土壤所覆盖，则迅速互渗的比例较高； （4）大盆地中的延迟入流比例要比小盆地中的低，并且（5）如果地面非常粗糙，则地下的存储容量较高。版权所有©2011 John Wiley＆Sons，Ltd.

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