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Regional flood frequency for Queensland using the quantile regression technique

机译：使用分位数回归技术的昆士兰州区域洪水频率

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摘要

Design flood estimation for small- and medium-sized catchments is a frequent requirement for a wide range of projects. While each individual project in this category is likely to be relatively small, the total value of projects that rely on design floods for the design is very high. The currently adopted approaches for Queensland are published in Australian Rainfall & Runoff. Several approaches are described, though the Main Roads Rational Method (MRRM) is predominant in practice. This method ha$ been used throughout Queensland for many years, but the basis of the method is not considered reliable because of the lack of recorded data used in the development and the lack of independent testing. The development of the new procedure described in this paper has used all suitable streamflow data available for the state. It therefore has a better foundation and the results can be accepted with more confidence. The approach presented uses the quantile regression technique to develop a procedure for calculating design floods for ungauged catchments that relates the design flood discharges to readily available catchment characteristics. The method is then tested against the currently available MRRM. This paper provides an input to part of the upgrade of Australian Rainfall & Runoff, currently underway.
机译：中小型流域的设计洪水估算是广泛项目的常见要求。虽然此类别中的每个项目可能都相对较小，但是依靠设计泛滥进行设计的项目的总价值却很高。昆士兰州目前采用的方法发表在《澳大利亚降雨与径流》中。尽管在实践中主要使用“道路理性方法”（MRRM），但仍描述了几种方法。此方法已在整个昆士兰州使用了很多年，但由于缺少开发中使用的记录数据和缺乏独立测试，因此该方法的基础不被认为是可靠的。本文描述的新程序的开发使用了该状态可用的所有合适的流量数据。因此，它具有更好的基础，并且可以更有信心地接受结果。提出的方法使用分位数回归技术来开发一种用于计算未引水流域设计洪水的程序，该程序将设计洪水流量与易于获得的集水特征相关联。然后针对当前可用的MRRM对方法进行测试。本文为目前正在进行的澳大利亚降雨与径流升级提供了部分意见。

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  • 来源
    《Australian journal of water resources》 |2011年第1期|p.47-57|共11页
  • 作者

    LB Palmen; WD Weeks;

  • 作者单位

    Department of Transport and Main Roads, Brisbane, Queensland;

    Department of Transport and Main Roads, Brisbane, Queensland;

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  • 正文语种 eng
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