Investigation of the Kuroshio variability south of Japan with special emphasis on scale interaction

日本南部黑潮变化的调查，特别强调尺度相互作用

• 批准号: 14340137
• 负责人: YAMAGATA Toshio
• 金额: $ 8.77万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14340137/
• 关键词: Kuroshio; Kuroshio Meander; El Nino; North Equatorial Current; Luzon Strait; Mesoscale Eddies; Furiwakeshio; JEBAR; ラニーニャ; 南シナ海; 東シナ海; アグルハス海流; エネルギー論; 北赤道海流の分岐緯度; 黒潮流量変動; 南方振動; 海洋大循環モデル; 惑星地衝流モデル; 亜熱帯循環系; 海洋渦

We tried to understand scale-interactions between the regional oceanic phenomena such as the Kuroshio meander and the basin-wide ocean climate phenomena such as El Nino. Our study region covers the North Equatorial Current, the Kuroshio and the Kuroshio Extension in the Subtropical Gyre. The present research discussed the following phenomena and clarified mechanisms using data analysis methods and numerical simulations. Those are 1)interannual variations of the seasonal evolution of the Mindanao Dome and their relation with El Nino, 2)relations between El Nino and the bifurcation latitude of the Kuroshio and the Mindanao Current, 3)relations among El Nino, the Kuroshio transport and the Luzon Strait throughflow, 4)relations between the Kuroshio veering phenomenon southwest of Kyushu and the joint effect of baroclinicity and bottom relief, 5)roles of meso-scale eddies in the Kuroshio meander, 6)<Furiwakeshio> (branching of the Kuroshio impinged on the Kii Peninsula), 7)influences of the Izu-Ogasawara Ridge on the seasonal variation of the Subtropical Gyre system, and 8)relations between the 1988/89 warming in the surface layer of the northern North Pacific and the variation of the Subtropical Gyre system. All the above results are mostly published in well-known international journals.

我们试图了解黑潮曲流等区域海洋现象与厄尔尼诺等全海盆海洋气候现象之间的尺度相互作用。我们的研究区域包括北赤道流、副热带环流中的黑潮和黑潮延伸。本研究采用数据分析和数值模拟的方法，讨论了以下现象并阐明了机理。主要包括：1)棉兰老丘的季节演变及其与厄尔尼诺的年际变化；2)厄尔尼诺与黑潮和棉兰老海流分岔纬度的关系；3)厄尔尼诺与黑潮运输和吕宋海峡通流的关系；4)九州西南黑潮转向现象与斜压性和底起伏的联合作用；5)黑潮曲流中尺度涡旋的作用。6)黑潮分支撞击喜岛（Kii Peninsula）； 7)伊津小笠原脊对副热带环流系统季节变化的影响；8)1988/89年北太平洋表层增温与副热带环流系统变化的关系。以上研究成果大多发表在国际知名期刊上。

项目成果

"Global Eddy-Resolving Simulation by the Earth Simulator : Brief Report on the First Run", In RECENT ADVANCES IN MARINE SCIENCE AND TECHNOLOGY 2002

“地球模拟器的全球涡解模拟：首次运行的简要报告”，载于 2002 年海洋科学与技术的最新进展

• 发表时间: 2003
• 期刊: PACON International
• 作者: Sakuma;H.;H.Sasaki;K.Takahashi;T.Kagimoto;T.Yamagata;T.Sato
• 通讯作者: T.Sato

Simulation of More Realistic Upper- Ocean Processes from an OGCM with a New Ocean Mixed Layer Model

使用新的海洋混合层模型从 OGCM 模拟更真实的上层海洋过程

• 发表时间: 2002
• 期刊: J.Phys.Oceanogr. 32
• 作者: Noh;Y.;C.J.Jang;T.Yamagata;P.C.Chu;C.H.Kim
• 通讯作者: C.H.Kim

Eddy Formation Near the Izu-Ogasawara Ridge and its Link with Seasonal Adjustment of the Subtropical Gyre in the Pacific

伊豆小笠原海脊附近涡流的形成及其与太平洋副热带环流季节调整的关系

• 发表时间: 2002
• 期刊: J.Korean Soc.Oceanogr. 37
• 作者: Ihara;C.;Y.Masumoto;T.Kagimoto;T.Yamagata
• 通讯作者: T.Yamagata

Thermodynamics in ocean and climate change

海洋热力学和气候变化

• 发表时间: 2005
• 期刊: Japanese Scientific Monthly 58
• 作者: Y.Koike et al.;Yamagata Toshio
• 通讯作者: Yamagata Toshio

Structure of a pair of Anticyclonic Vortices in Northern Part of the South China Sea in Autumn of 1994

1994年秋季南海北部一对反气旋涡的结构

• 发表时间: 2002
• 期刊: Acta Oceanologica Sinica 21
• 作者: Gang;F.;T.Yamagata
• 通讯作者: T.Yamagata