Vol.11-3 |
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日本海沿岸での波候推定に対する長期浅海波浪推算システムの適用性の検討
Applicability of a Long Term Shallow Water Wave Hindcast System to
the Estimation of Wave Climate along the Coast of the Japan Sea |
山口 正隆* ・ 畑田 佳男* ・ 旭置武志**
Masataka YAMAGUCHI*, Yoshio HATADA* and Takeshi HIOKI**
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Abstract
This paper deals with 8 years of wave hindcasting at 11 wave observation
points along the coast of the Japan Sea using a long-term shallow water
wave hindcast system, and investigation of its applicability to the estimation
of wave climate based on comparison with observations for not only time
variations of significant waves but also long-term sea state parameters
such as yearly-averaged wave height and period. Wind estimation is arrived
at by spatial interpolation onto a regular grid of atmospheric pressure
observed at irregularly-distributed points and the use of the Bijvoet
model. Wave estimation is arrived at by a shallow water spectral wave
model with a backward full ray tracing method. The availability of the
present system and the advantages over the deep water wave hindcast system
previously developed by the authors are verified by close and more reasonable
agreement with the observed data including mean wave direction.
【キーワード】:長期浅海波浪追算,スペクトルモデル,日本海,波侯
Key words: long term shallow water wave hindcast, spectral model, the
Japan Sea, wave climate
*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海洋工学専攻
Graduate Course of Ocean Engineering, EhimeUniversity
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