Effects of strong vertical mixing regions in the ocean interior caused by near-inertial motionsons on the basin scale circulation and material distributions
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- Senjyu Tomoharu
- Principal Investigator
- 九州大学
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- 荒巻 能史
- Co-Investigator
- 国立研究開発法人国立環境研究所
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- 遠藤 貴洋
- Co-Investigator
- 九州大学
About this project
- Japan Grant Number
- JP18H03741
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding organization
- Japan Society for the Promotion of Science
- Project/Area Number
- 18H03741
- Research Category
- Grant-in-Aid for Scientific Research (A)
- Allocation Type
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- Single-year Grants
- Review Section / Research Field
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- Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
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- Kyushu University
- Project Period (FY)
- 2018-04-01 〜 2022-03-31
- Project Status
- Completed
- Budget Amount*help
- 44,980,000 Yen (Direct Cost: 34,600,000 Yen Indirect Cost: 10,380,000 Yen)
Research Abstract
Deep currents in the Japan Sea were observed for a long time to investigate mixing processes in the deep oceans. The observational results revealed intermittent occurrence of strong flow periods with vertically varying flow speed. The observed vertical flow structure is caused by a superposition of wind-generated, upward- and downward-propagating internal waves, which is a cause of deep sea mixing. In addition, long-term hydrographic data and numerical simulations showed that the influence of global warming should be taken into consideration in the evaluation of vertical mixing in the oceans.