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首页> 外文期刊>Hydrology research >An Attempt Of Process-oriented Rainfall-runoff Modeling Using Multiple-response Data In An Alpine Catchment, Loehnersbach, Austria
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An Attempt Of Process-oriented Rainfall-runoff Modeling Using Multiple-response Data In An Alpine Catchment, Loehnersbach, Austria

机译：在奥地利Loehnersbach的一个高山流域使用多响应数据进行面向过程的降雨径流建模的尝试

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The development of process-oriented hydrological models, which are able to simulate hydrological processes distributed in space and time, is crucial for optimal management of water resources. The model TAC~D (tracer aided catchment model, distributed) was modified and applied to the mountainous Loehnersbach catchment (16 km~2), Kitzbueheler Alps, Austria, with the aim of simulating the dominant hydrological processes in a distributed way. It can be seen as a further developed, fully distributed version of the HBV-model with a more process-based runoff generation routine, which uses a spatial delineation of hydrological response units (HRUs). Good overall runoff simulations could be obtained for the whole catchment. Additional data, i.e. discharge from sub-catchments, snow height measurements and dissolved silica concentrations, enabled to some extent the evaluation of the simulation of single processes. Certain periods, e.g. short-term runoff fluctuations during snow melt periods, could not be simulated well even when different model modifications were executed. This indicates model shortcomings because of incomplete process understanding and the necessity for further experimental research as well as for new concepts of model structure. In particular, the understanding and mathematical description of subsurface storm flows has to be improved. The impact of different HRU delineations on discharge simulations at the catchment outlet was relatively low, as long as the direct runoff producing units remained constant. However, the impact on runoff predictions at sub-catchment scale was significant. This indicates an 'averaging out' effect for peculiarities and errors of runoff predictions at larger scales.
机译：面向过程的水文模型的开发，能够模拟时空分布的水文过程，对于水资源的优化管理至关重要。修改了模型TAC〜D（示踪剂辅助集水模型，分布式）并将其应用于奥地利基茨比厄勒阿尔卑斯山的Loehnersbach集水区（16 km〜2），目的是以分布式方式模拟主要的水文过程。可以将其看作是HBV模型的进一步开发的，完全分布式的版本，它具有更多基于过程的径流生成例程，该例程使用水文响应单位（HRU）的空间描述。整个流域可以获得良好的总体径流模拟。附加数据，即子汇水面积的排放量，雪高测量值和溶解的二氧化硅浓度，在某种程度上可以评估单个过程的模拟。某些时期，例如即使执行了不同的模型修改，也无法很好地模拟融雪期间的短期径流波动。这表明模型缺陷是由于对过程的不完全理解以及对进一步的实验研究以及模型结构的新概念的必要性。特别是，必须提高对地下风暴流的理解和数学描述。只要直接径流产生单元保持恒定，不同HRU划分对集水口出口模拟的影响就相对较小。但是，在子汇水规模上对径流预测的影响很大。这表明径流预测的特殊性和误差在更大范围内具有“平均”效应。

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