GENERALIZED RAINFALL-DURATION-FREQUENCY RELATIONSHIPS
GENERALIZED RAINFALL-DURATION-FREQUENCY RELATIONSHIPS
复制标题
广义降雨-持续时间-频率关系
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
F. C. Bell
中科院分区：
文献类型：
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作者：
F. C. Bell
用于工程目的的降雨持续时间频率估计通常会出现较大的抽样误差，因此，从估计效率的角度来看，对基本数据进行广泛的概括是有利的。高强度降雨值之间的关系，持续时间长达2小时和重现期长达100年的深度持续时间和深度频率比的方式适当地表示。这些比值在阿拉斯加、夏威夷、波多黎各、南非和澳大利亚等不同的地方，以及毗邻的美国，都显示出惊人的一致性，这表明存在着对这种比值的物理解释。数据可以方便地概括与几个替代的深度-持续时间-频率函数，这应该是有用的，在有限的数据区域的估计之一。
Rainfall-duration-frequency estimates for engineering purposes are usually subject to large sampling errors and extensive generalizations of the basic data are therefore advantageous from the point of view of estimation efficiency. Relationships between high-intensity rainfall values for durations up to 2 hr and return periods up to 100 years are appropriately expressed by means of depth-duration and depth-frequency ratios. These ratios are shown to have surprisingly consistent values in such diverse places as Alaska, Hawaii, Puerto Rica, South Africa and Australia, as well as the contiguous United States, and it is suggested that a physical explanation exists for such consistencies. The data may be conveniently generalized with one of several alternative depth-duration-frequency functions which should be useful for estimates in regions of limited data.