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首页> 外文期刊>Australian journal of water resources >An evaluation of a multi-day rainfall - runoff volume - peak discharge transform for flood frequency estimation
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An evaluation of a multi-day rainfall - runoff volume - peak discharge transform for flood frequency estimation

机译:洪水频率估计多天雨 - 径流速率 - 峰值放电变换的评价

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摘要

A new method to estimate design discharge quantiles is described based on converting multi-day rainfall P to flood event runoff RO, factored to generate discharge Q. The so-called PROQ transfer function is founded on simple flood volume-peak and GRADEX rainfall-runoff tanh relationships. Performance testing of PROQ, in both at-site and regional design flood contexts up to 1 in 100 annual exceedance probability, was made using south east Queensland streamgauge data. A statistical comparison against proven methods showed that the PROQ transform has significant potential as an alternative for design flood estimation. An example of how PROQ can be used within a design flood framework and recommendations for further enhancement are provided.
机译:基于将多天的降雨量P转换为洪水事件径流RO,描述了一种新的估计设计放电定量的方法,以产生放电Q.所谓的ProQ传输功能基于简单的洪水音量 - 峰值和成绩X降雨 - 径流坦希关系。 ProQ的性能测试,在100个年度超标概率上的现场和区域设计洪水背景下,使用东南昆士兰州StreamGauge数据制作。针对经过验证方法的统计比较表明,ProQ变换具有重要潜力,作为设计洪水估计的替代方案。提供了一个ProQ如何在设计泛滥框架内使用的示例,并提供了进一步增强的建议。

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