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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
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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