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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第72巻 第1号 >

網走沖の陸棚-海盆境界域における dense Soya Current Water の力学的役割

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Please use this identifier to cite or link to this item:https://doi.org/10.14943/bull.fish.72.1.1

Title: 網走沖の陸棚-海盆境界域における dense Soya Current Water の力学的役割
Other Titles: Mechanical role of dense Soya Current Water in the boundary region between shelf and basin areas off Abashiri
Authors: 千葉, 彩1 Browse this author
磯田, 豊2 Browse this author →KAKEN DB
Authors(alt): Chiba, Aya1
Isoda, Yutaka2
Keywords: Okhotsk Sea
dense Soya Current Water (DSCW)
model experiments
shelf waves
coastal jet
Issue Date: 22-Aug-2022
Publisher: 北海道大学大学院水産科学研究院
Journal Title: 北海道大学水産科学研究彙報
Journal Title(alt): Bulletin of Fisheries Sciences, Hokkaido University
Volume: 72
Issue: 1
Start Page: 1
End Page: 8
Abstract: The mechanical role of dense Soya Current Water (DSCW) responsible for a flow pattern in the boundary region between shelf and basin areas off Abashiri is investigated using a multi-layer model. Observations in summer show significant downwelling of modified DSCW inside the steep slope of basin area. This study finds a water column of DSCW trapped on the slope like as the barotropic adjustment. According to conservation of potential vorticity, a strong positive vorticity is produced by vortex stretching when DSCW is pushed out from shallower shelf to deeper basin. This causes the generation and propagation of shelf waves to occur a coastal jet along the shelf slope.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/86615
Appears in Collections:北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第72巻 第1号

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