The Sampling Variations of Hailstone Size Distributions
The Sampling Variations of Hailstone Size Distributions
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DOI：
10.1175/1520-0450(1988)027
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发表时间：
1988-03
期刊：
影响因子：
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通讯作者：
R. K. Wong;Norman Chidambaram;Lawrence Cheng;M. English
中科院分区：
文献类型：
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作者：
R. K. Wong;Norman Chidambaram;Lawrence Cheng;M. English
摘要对冰雹样本提出了一种移动伽马粒度分布的方法。使用时间分辨的艾伯塔省数据显示，这比通常的指数形式提供了更好的拟合。冰雹粒度分布形状与采样时间有一定的相关性。这种形状变化与较小尺寸类别的采样效率有关。文中还讨论了较小尺度对普通冰雹积分估计的重要性。还得到了这些积分估计的抽样精度所需的最小样本量。
Abstract The use of a shifted gamma size distribution for hailstone samples is proposed. This is shown to provide a better fit than the usual exponential form, using time-resolved Alberta data. It is also concluded that there is a dependence of the shape of hailstone size distributions on the duration of sampling time. Such shape variations are associated with the sampling efficiency of the smaller size categories. The importance of the smaller sizes to the common hail integral estimates is also investigated. The minimum sizes required for sampling accuracy of these integral estimates are also obtained.