Validation of the effect of Koshu Seamount on the transition to the large meander path of the Kuroshio

• Project/Area Number: 19740285
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Kyushu University
• Principal Investigator: ENDOH Takahiro Kyushu University, 応用力学研究所, 学術研究員 (10422362)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,630,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2007: ¥2,200,000 (Direct Cost: ¥2,200,000)
• Keywords: 黒潮大蛇行 / 引き金蛇行 / 膠州海山 / 傾圧不安定 / データ同化 / 衛星海面高度計 / 数値シミュレーション

Research Abstract

海洋研究開発機構が開発したJCOPE海洋変動予測システムによって得られた同化データ、衛星海面高度計データと漂流ブイデータを組み合わせて作成した海表面流速データ、海上保安庁が作成し海洋情報研究センターが数値化した黒潮流軸位置データ、日本海洋データセンターが収集し海洋情報研究センターが品質管理を行った各層観測データ、の全てを解析した結果、研究代表者が数値シミュレーションで理論的に予測した、潮岬のほぼ真南約200kmに位置する半径100km程度の海山の地形効果、「膠州海山効果」が、実際の黒潮大蛇行の形成時に存在していた可能性が極めて高いことが明らかとなった。

Research Products

• [Journal Article] Transition to the large meander path of the Kuroshio as observed by satellite altimetry (2009)
  • Author(s): Daisuke Ambe, Takahiro Endoh, Toshiyuki Hibiya, and Shiro Imawaki
  • Journal Title: La mer vol.47(in press)
  • NAID: 10026083957
  • Peer Reviewed
• [Journal Article] Observation of wind-driven deepening of the surface mixing layer in the Tsushima Strait (2009)
  • Author(s): Takahiro Endoh, Takeshi Matsuno, Yutaka Yoshikawa, Yasuto Tatsuyama, and Joji Ishizaka
  • Journal Title: Journal of Oceanography vol.65 Pages: 273-279
  • NAID: 10025553585
  • Peer Reviewed
• [Journal Article] Observation of wind-driven deepening of the surface mixing layer in the Tsushima Strait (2009)
  • Author(s): Takahiro Endoh, Takeshi Matsuno, Yutaka Yoshikawa, Yasuto Tatsuyama, and Joji Ishizaka
  • Journal Title: Journal of Oceanography 65 Pages: 273-279
  • NAID: 10025553585
  • Peer Reviewed
• [Journal Article] Transition to the large meander path of the Kuroshio as observed by satellite altimetry (2009)
  • Author(s): Daisuke Ambe, Takahiro Endoh, Toshiyuki Hibiya, and Shiro Imawaki
  • Journal Title: La mer 47(in press)
  • NAID: 10026083957
  • Peer Reviewed
• [Journal Article] Meridional overturning circulation of the deep Pacific estimated assuming the vertical advective-diffusive balance (2007)
  • Author(s): Takahiro Endoh and Toshiyuki Hibiya
  • Journal Title: Geophysical Research Letters vol.34
  • Peer Reviewed
• [Journal Article] Meridional overturning circulation of the deep Pacific estimated assuming the vertical advective-diffusive balance (2007)
  • Author(s): Takahiro, Endoh・Toshiyuki, Hibiya
  • Journal Title: Geophysical Research Letters 34 Pages: 5-5
  • Peer Reviewed
• [Presentation] Evidence for the interaction between trigger meander of the Kuroshio and the abyssal anticyclone over Koshu Seamount in the reanalysis data (2008)
  • Author(s): 遠藤貴洋
  • Organizer: American Geophysical Union 2008 Fall Meeting
  • Place of Presentation: Moscone North サンフランシスコ
  • Year and Date: 2008-12-18
• [Presentation] Evidence for the interaction between the trigger meander of the Kuroshio and the abyssal anticyclone over Koshu Seamount in the reanalysis data (2008)
  • Author(s): 遠藤貴洋
  • Organizer: American Geophysical Union 2008 Fall Meeting
  • Place of Presentation: Moscone Northサンフランシスコ
  • Year and Date: 2008-12-18
• [Presentation] 鉛直一次元移流・拡散バランスから見積もった太平洋深層の子午面循環 (2008)
  • Author(s): 遠藤貴洋
  • Organizer: 2008年度日本海洋学会秋季大会
  • Place of Presentation: 広島国際大学呉キャンパス
  • Year and Date: 2008-09-27
• [Presentation] 2004年の黒潮大蛇行形成期における「膠州海山効果」の検証 (2008)
  • Author(s): 遠藤貴洋
  • Organizer: 2008年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンパス
  • Year and Date: 2008-03-27
• [Presentation] 2004年の黒潮大蛇行形成期における「膠州海山効果]の検証 (2008)
  • Author(s): 遠藤 貴洋
  • Organizer: 2008年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンパス
  • Year and Date: 2008-03-27
• [Presentation] Meridional overturning circulation of the deep Pacific estimated assuming the vertical advective-diffusive balance (2007)
  • Author(s): 遠藤貴洋
  • Organizer: American Geophysical Union 2007 Fall Meeting
  • Place of Presentation: Moscone West サンフランシスコ
  • Year and Date: 2007-12-12
• [Presentation] Meridional overturning circulation of the deep Pacific estimated assuming the vertical advective-diffusive balance (2007)
  • Author(s): 遠藤 貴洋
  • Organizer: American Geopgysical Union 2007 Fall Meeting
  • Place of Presentation: Moscone West,サンフラントスコ
  • Year and Date: 2007-12-12