Meso-scale eddies along the Kuroshio Extension and their roles for mixing

• Project/Area Number: 20740279
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: KOUKETSU Shinya Japan Agency for Marine-Earth Science and Technology, 地球環境変動領域, 研究員 (30421887)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 海洋亜表層 / 中規模擾乱 / 黒潮続流 / 混合層 / 北太平洋

Research Abstract

The impact of stratification structure in the Okhotsk sea on meso-scale eddy activity around the Kuroshio extension is investigated with 3-layer model. The eddy scales and activities were large when the second layer was thick in the Okhotsk sea. As we showed the strong relationships that deep mixed layers were frequently observed in the core of anti-cyclonic eddies, the eddy activity changes revealed in the numerical experiment might be influent on the circulation in the upper layer as well as in the mid depths.

Research Products

• [Journal Article] The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific (2011)
  • Author(s): Shinya Kouketsu
  • Journal Title: Journal of Oceanography
  • Peer Reviewed
• [Journal Article] The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific.
  • Author(s): S.Kouketsu, H.Tomita, E.Oka, S.Hosoda, T.Kobayashi, K.Sato.
  • Journal Title: Journal of Oceanography(doi:10.1007/s10872-011-0049-9) in press
• [Presentation] 続流付近中規模渦と冬季混合層 (2010)
  • Author(s): 纐纈慎也
  • Organizer: 北太平洋とその周辺海域における循環と水塊過程
  • Place of Presentation: 国際沿岸海洋研究センター(大槌町)
  • Year and Date: 2010-08-03
• [Presentation] 続流付近中規模渦と冬季混合層,北太平洋とその周辺海域における循環と水塊過程 (2010)
  • Author(s): 纐纈慎也
  • Organizer: 国際沿岸海洋研究センター研究集会「北太平洋とその周辺海域における循環と水塊過程」
  • Place of Presentation: 国際沿岸海洋研究センター(大槌町)
  • Year and Date: 2010-08-02
• [Presentation] 海面高度から抽出された渦と海洋混合層の関係 (2010)
  • Author(s): 纐纈慎也
  • Organizer: 日本海洋学会春季大会2010
  • Place of Presentation: 東京海洋大学(品川)
  • Year and Date: 2010-03-26
• [Presentation] 海面高度から抽出された渦と海洋混合層の関係 (2010)
  • Author(s): 纐纈慎也
  • Organizer: 2010年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学(品川)
  • Year and Date: 2010-03-24