Vol.13-3 |
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波浪追算に基づくわが国太平洋岸での台風発生最大波高の沿岸分布の再検討
Re-Estimation of Typhoon-Generated Maximum Wave Height along the Pacific
Coast of Japan Based on Wave Hindcasting |
山口 正隆* ・ 畑田 佳男* ・ 佐藤 尚**
Masataka YAMAGUCHI*, Yoshio HATADA* and Hisashi SATO** |
Abstract
Waves in the Western Pacific Ocean and at selected points along the Pacific
coast of Japan are hindcasted for 118 typhoons from l940 to 1991 by use
of two kinds of spectral wave prediction models. The maximum wave height
at each point is estimated during a typhoon. These new maximum wave height
data are added to those in the concerned area for 125 typhoons from 1934
to 1983 obtained by Yamaguchi et al. to make a longer data set of maximum
wave heights caused by a total of 243 typhoons from 1934 to 1991. Spatial
distribution in the Western Pacific Ocean of the most extreme wave height
and wave height for return period of 100 years, and their variations along
the Pacific coast of Japan, are re-estimated on the basis of statistical
analysis of the data and compared with the results of Yamaguchi et al.
By adding the new data, the main conclusions obtained by Yamaguchi et
al. are still valid except for the data in the Western Kyushu coast.
【キーワード】:波浪追算,スペクトルモデル,わが国太平洋岸,台風,波高の極値
Key words: wave hindcast, spectral model, the Pacific coast of Japan,
typhoon, extreme waves
*愛媛大学工学部土木海洋工学科
Department of Civil and Ocean Engineering, Faculty of Engineering, Ehime
University
**愛媛大学大学院工学研究科
Graduate Course of Civil and Ocean Engineering, Ehime University
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