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Flash flood retention in headwater areas of the Natzschung River using small retarding basins

机译：利用小延迟盆地闪蒸洪水保留Natzschung河的下水域

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The concept of decentralised flood protection measures is based on the idea to localize and use the natural capability of a catchment to retard runoff as early as possible and at several places at the same time by means of a combination of different small-scale measures. Because common flood protection management mostly focuses on the downstream catchment regions, the question arises if for headwater areas any opportunities exist to mitigate flash floods. The headwater areas of the Ore Mountains in Germany are often one agent triggering flash floods in downstream valleys. Against the background of severe damages caused by flash floods in the past, the hydrological effect of small retarding basins on flood generation was analysed for the case study of the Natzschung River. The modelled scenarios indicate that the use of small basins has a distinct and local impact on the reduction and time shift of peak discharge.
机译：分散洪水保护措施的概念是基于本地化的想法，并利用集水区的自然能力尽早延迟径流，同时通过不同的小规模措施的组合在几个位置。由于普通防洪管理主要集中在下游集水区，因此出现问题的问题，如果有用于减轻闪光洪水的任何机会都存在任何机会。德国矿石的下落区域往往是一个触发下游山谷的闪蒸洪水的代理。在过去的闪蒸洪水造成的严重损害背景下，分析了对Natzschung河的案例研究，分析了小延迟盆地对洪水的水文效应。所建模的场景表明，使用小盆地的使用对峰值放电的减少和时间偏移具有明显和局部的影响。

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