Long-term hydrometeorological measurements and model-based analyses in the hydrological research catchment Rietholzbach
Long-term hydrometeorological measurements and model-based analyses in the hydrological research catchment Rietholzbach
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Rietholzbach 水文研究区的长期水文气象测量和基于模型的分析
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Ulrich Moser
中科院分区：
文献类型：
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作者：
J. Gurtz;M. Verbunt;M. Zappa;M. Moesch;F. Pos;Ulrich Moser
在这项研究中，一个25年（1976-2000年）的系列观测降水，温度，径流和进一步的蒸渗计平衡内高山前研究集水Rietholzbach（瑞士）的水流进行了分析。在此蒸渗仪上的降水量的比较，由传统的雨量计收集的降水量表明，传统的雨量计提供强烈低估的降水量，特别是在冬季。得到的月降水量校正因子表明，降雨损失大于20%，降雪损失大于50%是现实的。观测到的水文气象值有助于更好地理解利用分布式水文模型对水文过程进行基于模型的模拟，并有助于调查概念性和基于物理的径流生成方法。通过土壤水分、土壤水分和蒸渗计水分平衡，可以同时评估几个模型组成部分的性能，如土壤水分、径流生成和蒸散模块以及确定积雪积累和融化的模块。
In this study a 25-year (1976–2000) series of observed precipitation, temperature, runoff and further water-flows of a lysimeter balance within the pre-alpine research catchment Rietholzbach (Switzerland) is analyzed. The comparison of the precipitation volumes on this lysimeter to precipitation collected by a conventional rain gauge shows that conventional rain gauges provide strongly underestimated values for precipitation, especially in winter. The obtained monthly precipitation correction factors indicate that precipitation losses above 20% for rain and above 50% for snow are realistic. The observed hydrometeorological values allowed for improving the understanding of the model-based simulation of the hydrological processes with distributed hydrological models and for investigating both a conceptual and a physically based runoff-generation approach. The albedo, soil moisture and lysimeter water balance allowed for a simultaneous assessment of the performance of several model components, such as the soil moisture, runoff-generation and evapotranspiration modules and the module for the determination of snow cover accumulation and melt.