Development of the observation system of three-dimensional small-scale flow structures: Fill the observation gap between sub-mesoscale and turbulence
| Project/Area Number |
25707036
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Research Collaborator |
SHIMODA Chikara
KURODA Hiroshi
FUJITA Kazuyuki
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥27,040,000 (Direct Cost: ¥20,800,000、Indirect Cost: ¥6,240,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000)
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| Keywords | 海洋物理 / 乱流 / サブメソスケール / 内部波 / 微細流動構造 |
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| Outline of Final Research Achievements |
Mixing is a fundamental factor in oceanography, as it controls the transport of heat and dissolved materials in the ocean together with ocean circulation. However, the actual state and nature of small-scale three-dimensional structures (horizontal scales < O (1 km)), which drives mixing, have been obscured by the lack of means of observation. This study is the first achievement of observing such small-scale structures. For this end, we devised and developed an observation system of small-scale three-dimensional flow structures. With this system, we observed small-scale structures of transitional processes toward turbulence from the breaking of large-amplitude internal waves or sub-mesoscale eddies in the Kuril Straits and Oyashio region.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Oceanic fronts and jets around Japan: a review2015
Author(s)
Kida, S., H. Mitsudera, S. Aoki, X. Guo, S. Ito, F. Kobashi, N. Komori, A. Kubokawa, T. Miyama, R. Morie, H. Nakamura, T. Nakamura, H. Nakano, H. Nishigaki, M. Nonaka, H. Sasaki, Y. N. Sasaki, T. Suga, S. Sugimoto, B. Taguchi, K. Takaya, T. Tozuka, H. Tsujino, and N. Usui
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Journal Title
Journal of Oceanography
Volume: 未定
Issue: 5
Pages: 1561-1577
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Remotely propagating salinity anomaly varies the source of the North Pacific ventilation2014
Author(s)
Uehara, H., Kruts, A. A., Mitsudera, H., Nakamura, T., Volkov, Y. N., Wakatsuchi, M
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Journal Title
Progress in Oceanography
Volume: 126
Pages: 80-97
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] 北太平洋物質循環モデルの結合～鉄-栄養塩実験～2014
Author(s)
中野渡拓也, 吉成浩志, 内本圭亮, 松田淳二, 三寺史夫, 中村知裕, 西岡純, 津旨大輔, 三角和弘, 羽角博康, 若土正曉
Organizer
2014年度 日本海洋学会 秋季大会
Place of Presentation
長崎大学文教キャンパス, 長崎
Year and Date
2014-09-13 – 2014-09-17
Related Report
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[Presentation] Remotely propagating salinity anomaly varies the source of the North Pacific ventilation2014
Author(s)
Uehara, H., Kruts, A. A., Mitsudera, H., Nakamura, T., and Volkov, Y. N.
Organizer
2014 Ocean Sciences Meeting
Place of Presentation
Hawaii Convention Center, Honolulu, Hawaii, USA
Related Report
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[Presentation] Thermohaline circulation system from the Bering Sea to the North Pacific via the Sea of Okhotsk2014
Author(s)
Matsuda, J., Mitsudera, H., Nakamura, T., Hasumi, H., and Sasajima, Y
Organizer
2014 Ocean Sciences Meeting
Place of Presentation
Hawaii Convention Center, Honolulu, Hawaii, USA
Related Report
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