| Project/Area Number |
20221001
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Hokkaido University |
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Principal Investigator |
OHSHIMA Keiichiro (OHSHIMA Kiichiro) 北海道大学, 低温科学研究所, 教授 (30185251)
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| Co-Investigator(Kenkyū-buntansha) |
EBUCHI Naoto 北海道大学, 低温科学研究所, 教授 (10203655)
AOKI Shigeru 北海道大学, 低温科学研究所, 准教授 (80281583)
FUKAMACHI Yasushi 北海道大学, 低温科学研究所, 准教授 (20250508)
TOYOTA Takenobu 北海道大学, 低温科学研究所, 助教 (80312411)
MATSUMURA Yoshimasa 北海道大学, 低温科学研究所, 助教 (70631399)
KITADE Yujiro 東京海洋大学, 海洋科学技術研究科, 准教授 (50281001)
TATEYAMA Kazutaka 北見工業大学, 工学部, 助教 (30374789)
NIHASHI Sohey 苫小牧工業高等専門学校, 機械工学科, 准教授 (50396321)
ONO Kazuya 北海道大学, 低温科学研究所, 技術専門職員 (40396320)
ENOMOTO Hiroyuki 情報・システム研究機構, 国立極地研究所, 教授 (00213562)
KIMURA Noriaki 東京大学, 大学院・新領域創成科学研究科, 助教 (20374647)
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| Co-Investigator(Renkei-kenkyūsha) |
TAMURA Takeshi 情報・システム研究機構, 国立極地研究所, 助教 (40451413)
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| Project Period (FY) |
2008 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥211,120,000 (Direct Cost: ¥162,400,000、Indirect Cost: ¥48,720,000)
Fiscal Year 2012: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2011: ¥27,430,000 (Direct Cost: ¥21,100,000、Indirect Cost: ¥6,330,000)
Fiscal Year 2010: ¥48,750,000 (Direct Cost: ¥37,500,000、Indirect Cost: ¥11,250,000)
Fiscal Year 2009: ¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2008: ¥75,270,000 (Direct Cost: ¥57,900,000、Indirect Cost: ¥17,370,000)
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| Keywords | 海氷生産 / 中深層循環 / 沿岸ポリニヤ / 南極底層水 / マイクロ波放射計 / 熱塩フラックス / ケープダンレー / 海洋熱塩循環 / 氷床海洋相互作用 / 海氷生成 / オホーツク海 / 中層循環 / 係留系 / 北極海 |
|---|
| Research Abstract |
Saline water rejected during sea ice formation drive the global overturning circulation. We have developed an algorithm to estimate and provide global mapping of sea ice production from satellite data for the first time. High ice production process in coastal polynyas has been clarified by mooring observations with validation of the algorithm. We have revealed that the region off Cape Darnley is the missing formation area of Antarctic Bottom Water with the second highest ice production in the Antarctica. We have also clarified the strong linkage between variabilities of sea ice production and bottom/intermediate water in the Antarctic Ocean and Okhotsk Sea and suggested weakening of the overturning in these oceans.
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| Assessment Rating |
Verification Result (Rating)
A+
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