2008 Fiscal Year Final Research Report
Identification of mixing hotspots on the abyssal rough bottom using a microstructure profiler and their incorporation into global thermohaline circulation models
| Project/Area Number |
19340133
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HIBIYA Toshiyuki The University of Tokyo, 大学院・理学系研究科, 教授 (80192714)
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| Co-Investigator(Kenkyū-buntansha) |
ISODA Yutaka 北海道大学, 大学院・水産科学研究科, 准教授 (10193393)
KITADE Yujiro 東京海洋大学, 海洋科学部, 准教授 (50281001)
HASUMI Hiroyasu 東京大学, 気候システム研究センター, 准教授 (40311641)
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| Project Period (FY) |
2007 – 2008
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| Keywords | 海底境界混合 / 乱流ホットスポット / パラメタリゼーション / 流速鉛直シアー / ストレイン / 超深海乱流計 / 天皇海山列 / 深層海洋大循環 |
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| Research Abstract |
By deploying a microstructure profiler over the Izu-Ogasawara Ridge and the Emperor Seamounts, we have succeeded, for the first time in Japan, in identifying mixing hotspots on the abyssal rough bottom. We have also found that these mixing hotspots can be best quantified in terms of Gregg-Heyney-Polzin (GHP) parameterization. Finally, abyssal mixing hotpots in the world's oceans quantified using GHP parameterization have been embedded into the ocean general circulation model to obtain the most accurate pattern of global thermohaline circulation.
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Research Products
(60 results)
