2019 Fiscal Year Final Research Report
International Collaboration for Ocean Mixing Project
International Activities Supporting Group
Project Area | Ocean Mixing Processes: Impact on Biogeochemistry, Climate and Ecosystem |
Project/Area Number |
15K21710
|
Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
|
Allocation Type | Multi-year Fund |
Review Section |
Complex systems
|
Research Institution | The University of Tokyo |
Principal Investigator |
Yasuda Ichiro 東京大学, 大気海洋研究所, 教授 (80270792)
|
Co-Investigator(Kenkyū-buntansha) |
日比谷 紀之 東京大学, 大学院理学系研究科(理学部), 教授 (80192714)
|
Project Period (FY) |
2015-11-06 – 2020-03-31
|
Keywords | 海洋混合学 / 乱流 / 鉛直混合 / 海洋物理学 / 海洋生物地球化学 / 海洋生態学 / 潮汐 / 気候 |
Outline of Final Research Achievements |
To achieve the overarching goals of the Ocean Mixing Project, we enhanced the international collaboration on the field expeditions in the areas where there has been no turbulence and other integrated biogeochemistry observations such as the EEZs of Russia, Indonesia, Taiwan, Philippine and Chinese waters. Those planned observations were all successfully performed with the aid of this financial support. Through the three international symposiums with the invitations of many extraordinary foreign scientists, many sessions in the international scientific meetings, next-generation scientists have been cultivated and results of this project were open to international communities.
|
Free Research Field |
海洋混合学
|
Academic Significance and Societal Importance of the Research Achievements |
海洋鉛直混合は海洋循環・熱物質輸送を通じて、気候・海洋生態系を制御する重要な物理過程であるが、観測が難しく実測がほとんどなかった。本研究では、新しい効率的な観測手法が開発され、多くの混合観測データとともに物理・化学・生物の統合的データが収集され、観測を反映したモデルが開発された。日本周辺海域での豊かな生物生産が混合によって支えられていること、北太平洋での深層での混合が深層水の変質を通じて全球気候・温暖化にも影響を与えること、潮汐18.6年振動混合変動等を通じて気候や生態系・水産資源の長期変動に影響することなどが明らかとなった。
|