襟裳沖陸棚斜面域から日高舟状海盆へ侵入する親潮順圧流の数値モデル実験と海洋観測

• 三宅 誠音

• 磯田 豊

• 今井 圭理

• 小熊 健治

• 澤田 光希

書誌事項

タイトル別名

• Model experiments and observations of Oyashio barotropic flow intruding to Hidaka Trough via steep shelf slope area off Cape Erimo

抄録

The shelf slope off Cape Erimo is very steep, and its slope width (L～30 km) is smaller than the internal radius deformation (λi～50 km).　A simple model is used to investigate the dynamic response of Oyashio barotropic flow passing through this local steep slope area.　Model results suggest that near-bottom Oyashio water cannot intrude from shelf area off Cape Erimo to Hidaka Trough, because inverse flow accompanied by the bottom trapped shelf wave is generated over the steep slope under the physical condition of L <λi.　To confirm the existence of such inverse flow, hydrographic data at upstream and downstream both sides of shelf area off Cape Erimo were examined.

収録刊行物

• 北海道大学水産科学研究彙報

  北海道大学水産科学研究彙報 70 (1), 1-11, 2020-08-24

  北海道大学大学院水産科学研究院

キーワード

• Oyashio
• Cape Erimo
• Steep shelf slope
• Hydrographic data

詳細情報

• CRID: 1390572174749423872
• NII論文ID: 120006880730
• DOI: 10.14943/bull.fish.70.1.1
• ISSN: 24353353
• HANDLE: 2115/79112
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可