ANALYSIS OF OCCURRENCE CHARACTERISTICS AND SOURCE OF SWELL ON THE PACIFIC COAST
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- MATSUFUJI Eriko
- 九州大学 工学府海洋システム工学専攻
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- HASHIMOTO Noriaki
- 九州大学 大学院工学研究院附属アジア防災研究センター
Bibliographic Information
- Other Title
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- 太平洋沿岸におけるうねりの出現特性と発生源の解析
- タイヘイヨウ エンガン ニ オケル ウネリ ノ シュツゲン トクセイ ト ハッセイ ゲン ノ カイセキ
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Abstract
<p> In this study, the occurrence characteristics of swell are investigated on the basis of a wave data set created by performing one year wave hindcasting for the Pacific Ocean using the wave model WAVEWATCH III. By applying a partitioning technique to the directional spectra of the data set, swell components are classified into the ones with short and long decay distances, respectively. As a result, it was found that the swell with short decay distance mainly comes from the southeast due to typhoons and low pressures, while the dominant swell with long decay distance comes from northeast, which originally developed in the northern North Pacific. Furthermore, we trace the swell by applying Wave System Tracking, and show the results of long period swell propagation to the Pacific coast of Japan, which originated from the South Pacific and the trade wind zone.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75 (2), I_301-I_306, 2019
Japan Society of Civil Engineers
