2014 Fiscal Year Final Research Report
Atmosphere-ocean-sea ice interaction processes in the Sea of Okhotsk and the Arctic Region
| Project Area | Multi-scale air-sea interaction under the East-Asian monsoon: A "hot spot" in the climate system |
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| Project/Area Number |
22106010
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMURA Tomohiro 北海道大学, 低温科学研究所, 講師 (60400008)
UKITA Jinro 新潟大学, 自然科学系, 教授 (80272459)
KIMURA Noriaki 国立極地研究所, 国際北極環境研究センター, 特任研究員 (20374647)
OGI Masayo 海洋研究開発機構, 地球環境変動領域, 研究員 (50392957)
KANEKO Masami 酪農学園, 農学生命科学部, 教授 (00347767)
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| Co-Investigator(Renkei-kenkyūsha) |
TAGUCHI Bunmei 海洋研究開発機構, アプリケーションラボ, 主任研究員 (80435841)
KOMORI Nobumasa 海洋研究開発機構, アプリケーションラボ, 主任技術研究員 (80359223)
OHSHIMA Keiichiro 北海道大学, 低温科学研究所, 教授 (30185251)
KAWASHIMA Masayuki 北海道大学, 低温科学研究所, 助教 (10281833)
TAKAYA Kotaro 京都産業大学, 理学部, 准教授 (60392966)
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| Project Period (FY) |
2010-04-01 – 2015-03-31
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| Keywords | 大気海洋海氷相互作用 / オホーツク海 / 北極圏 / 下層雲 / 海氷 |
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| Outline of Final Research Achievements |
Atmosphere-ocean (-sea ice) interaction processes in the Sea of Okhotsk and the Arctic Sea were investigated, where characteristic seasonality, such as the formation of seasonal sea ice areas in winter as well as the formation of the Okhotsk High and low-level clouds in summer, is exhibited. Sea surface temperature (SST) in the Sea of Okhotsk is kept cool in summer. This is likely attributed to the feedback between the SST and the low-level clouds. As for winter, it was found that the sea ice extent in the Sea of Okhotsk is linked well with the sea ice extent of the preceding summer in the Eastern Siberian Sea within the Arctic Sea. We investigated this linkage from a novel point of view, which is the annual Arctic Oscillation (annual AO), defined by the surface pressure anomaly averaged over one year from January of each year. Feedback processes associated with the annual AO were discussed.
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| Free Research Field |
海洋物理学
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