MASS TRANSPORT TOWARD COASTAL REGIONS FROM THE KUROSHIO INVESTIGATED WITH A PARTICLE TRACKING MODEL
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- MASUNAGA Eiji
- 茨城大学 地球・地域環境共創機構
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- KIMURA Waku
- 鹿島建設（株）東京土木支店
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- KOSAKO Taichi
- 国立研究開発法人海上・港湾・航空技術研究所 港湾空港技術研究所 沿岸土砂管理研究グループ
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- ZHANG Xu
- 神戸大学 大学院工学研究科市民工学専攻
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- UCHIYAMA Yusuke
- 神戸大学 大学院工学研究科市民工学専攻
Bibliographic Information
- Other Title
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- 粒子追跡モデルを用いた黒潮から沿岸域への物質輸送過程の評価
- リュウシ ツイセキ モデル オ モチイタ クロシオ カラ エンガンイキ エ ノ ブッシツ ユソウ カテイ ノ ヒョウカ
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Abstract
<p> This study investigated mass transport processes from the Kuroshio toward coastal regions along the southern area of the Japan mainland using a downscaled oceanic numerical simulator (ROMS) and a particle tracking model. Eddy motions are enhanced in the vicinity of the Izu chain islands and coastal regions in summer. By contrast, in winter, enhaced eddy motions appear in south areas of the Kuroshio. The Kuroshio generates several flow branches due to the Izu-Ogasawara Ridge, which results in a cyclonic eddy in Enshu-nada and transport toward Sagami Bay. Mass transport from the Kuroshioo toward coastal regions are mainly caused by two Kuroshio branches toward (1) Enshu-nada and (2) Sagami Bay. The shoreward transport is much higher in summer than that in winter, since the Kurishio axis is located near the coast in summer. Enhanced eddies in winter contribute to vertical mass transport. The tidal forcing significantly promotes mass transpot toward coastal regions.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76 (2), I_91-I_96, 2020
Japan Society of Civil Engineers