「台風の影響の強い地域における台風による強風の極値分布」に対する討論(牧野稔著,日本建築学会構造系論文集,第458号,1994年4月号掲載)

概要

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In the statistical analysis of annual extreme winds due to typhoons, the author used the Gumbel distribution to obtain mean recurrence values of 50, 100 and 500 years of wind speeds at all weather stations considered in the paper. The first part of question is concerned with the selection of probability distributions; according to the re-examination of the wind speed data given by the author, the Weibull distribution seems more appropriate. The second part is related to a portion of conclusions; although the use of annual extreme wind data due to typhoons rather than mixed winds is recommended in order to avoid underestimating mean recurrence wind speeds, at several stations where the skewness factor is small mixed winds result in larger or almost equal 500-year wind speeds when the Weibull distribution is employed.
1995-07-30