| Project/Area Number |
22310017
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
ISHII Masao 気象庁気象研究所, 気象庁気象研究所, 室長 (70354553)
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| Co-Investigator(Kenkyū-buntansha) |
SASANO Daisuke 気象研究所, 地球化学研究部, 地球化学研究部 (10462524)
KOSUGI Naohiro 気象研究所, 地球化学研究部, 研究官 (20553168)
SUZUKI Toru (財)日本水路協会海洋情報研究センター, 研究開発部, 部長 (10360736)
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| Co-Investigator(Renkei-kenkyūsha) |
MIDORIKAWA Takashi 気象研究所, 地球化学研究部, 地球化学研究部 (10414517)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2011: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2010: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 化学海洋 / 海洋酸性化 / 太平洋 / 熱帯 / 二酸化炭素 / 全炭酸濃度 / 全アルカリ度 / 国際研究者交流（アメリカ合衆国） / 国際情報交換（アメリカ合衆国、カナダ） / 海洋科学 / 環境変動 / 気候変動 / 地球化学 / 海洋物理・陸水学 / 太平洋赤道域 / 海洋物質循環 |
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| Research Abstract |
While improving the methods for the measurement of ocean CO_2 system parameters, we made measurements of these parameters in the surface and in the interior of the equatorial Pacific. We also prepared the database “PACIFICA” for the ocean CO_2 system and biochemical parameters in the Pacific Ocean through the international cooperation under the North Pacific Marine Science Organization (PICES). Using the PACIFICA database, we have demonstrated that CO_2 content in seawater is increasing and ocean acidification is occurring significantly in the tropical zone of the Pacific Ocean due to anthropogenic CO_2 emissions. The transport of anthropogenic CO_2 from the subtropical zones in the North and South Pacific through the shallow meridional overturning circulation is considered to be a key process controlling the CO_2 increase and ocean acidification in the western Pacific tropical regions
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