| タイトル |
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ja
津軽海峡大間崎背後の負の水平シアー流で引き起こされる鉛直循環流
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en
Vertical circulation induced by negative shear flow at the downside of Ooma-zaki in the Tsugaru Strait
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| 作成者 |
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ja
浅野, 竜太
en
Asano, Ryuta
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| アクセス権 |
open access |
| 主題 |
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Other
en
Tsugaru Strait
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Other
en
Gradient flow balance
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Other
en
Vorticity balance
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Other
en
Vertical circulation
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NDC
660
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| 内容注記 |
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Abstract
en
A new type of mechanism for the generation of vertical circulation is revealed with the use of numerical experiments for the bended channel model. In the steady passage-flow experiment with a flat bottom and no bottom friction, a remarkable vertical circulation is formed only at the downside of bended corner where a negative horizontal shear flow dominates. Specifically, we call this type circulation “Negative Shear induced Vertical Circulation (NSVC)”, which is caused through the dynamical unbalance of gradient flow and the vorticity balance between the lateral vorticity advection and the sea surface divergence. A field observation was carried out around the Ooma-zaki area in the eastern Tsugaru Strait to confirm an enhanced downward flow expected by the realistic experiment including the bottom slope and friction. The spatial istributions of water temperature support the existence of this downward motion.
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| 出版者 |
ja
北海道大学大学院水産科学研究院
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| 日付 |
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| 言語 |
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| 資源タイプ |
departmental bulletin paper |
| 出版タイプ |
VoR |
| 資源識別子 |
DOI
https://doi.org/10.14943/bull.fish.70.1.63
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HDL
http://hdl.handle.net/2115/79117
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| ID |
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JaLC
10.14943/bull.fish.70.1.63
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| 収録誌情報 |
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ja
北海道大学水産科学研究彙報
en
Bulletin of Fisheries Sciences, Hokkaido University
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巻70
号1
開始ページ63
終了ページ76
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
