The feedback system of gas exchange in the ocean

• Project/Area Number: 22241001
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Hokkaido University
• Principal Investigator: WATANABE Yutaka 北海道大学, 大学院・地球環境研究院, 准教授 (90333640)
• Co-Investigator(Kenkyū-buntansha): NISHIOKA Jun 北海道大学, 低温科学研究所, 准教授 (90371533) ; SAKAOKA Keiichiro 北海道大学, 水産学部, 准教授 (40241377) ; YOSHIKAWA Hisayuki 北海道大学, 大学院・地球環境科学研究院, 教授 (60344496) ; MINAMI Hideki 東海大学, 生物学部, 教授 (60254710) ; ONO Tsuneo 水産総合研究センター, 中央水産研究所, 主任研究員 (40371786)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥47,840,000 (Direct Cost: ¥36,800,000、Indirect Cost: ¥11,040,000); Fiscal Year 2012: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000); Fiscal Year 2011: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2010: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
• Keywords: 化学海洋学 / 海洋大気物質循環

Research Abstract

：In order to clarify how the nitrogen and carbon cycles in the ocean change spatiotemporally, we carried out the developments of the new estimations about these changes with a new sampling system. Applying the new estimations with the new sampling system to ocean observation, we had significant distributions of spatiotemporal distributions of nitrogen and carbon parameters in the North Pacific and the global ocean, indicating a possibility that we can obtain the detailed spatiotemporal distributions of change in ocean biogeochemical cycles.

Research Products

• [Journal Article] Decadal time evolution of ocean uptake of anthropogenic carbon in the Okhotsk Sea (2013)
  • Author(s): Watanabe Y. W., J. Nishioka and T. Nakatsuka
  • Journal Title: Geophysical Research Letter Volume: 40 Issue: 2 Pages: 1-5
  • DOI: 10.1002/grl.50113
  • NAID: 120005311814
  • Peer Reviewed
• [Journal Article] Spatial high-resolution estimation of net oxygen production during spring bloom in the western North Pacific using dissolved oxygen, nitrogen and argon (2013)
  • Author(s): Tanaka, S. S., Watanabe, Y. W., Ono, T., Aramaki, T.
  • Journal Title: Marine Chemistry Volume: 149 Pages: 85-95
  • DOI: 10.1016/j.marchem.2013.01.001
  • Peer Reviewed
• [Journal Article] Evidence of an extensive spread of hydrothermal dissolved iron in the Indian Ocean (2013)
  • Author(s): Nishioka, J., Obata, H., Tsumune, D.
  • Journal Title: Earth and Planetary Science Letters Volume: 361 Pages: 26-33
  • DOI: 10.1016/j.epsl.2012.11.040
  • Peer Reviewed
• [Journal Article] Development of a one-dimensional ecosystem model including the iron applied to the Oyashio region, western subarctic Pacific (2012)
  • Author(s): Shigemitsu, M., Okunishi, T., Nishioka, J., Sumata, H., Hashioka, T., Aita, M.N., Smith, S. L., Yoshie, N., Okada, K., Yamanaka, Y.
  • Journal Title: Journal of Geophysical Research-Ocean Volume: 177 Issue: C6 Pages: 177-177
  • DOI: 10.1029/2011jc007689
  • Peer Reviewed
• [Journal Article] 化学トレーサーから見たオホーツク海の炭素吸収変動 (2012)
  • Author(s): 渡辺 豊
  • Journal Title: 月刊海洋 Volume: 44 Pages: 561-568
• [Journal Article] Variations in atmospheric Rn-222 in the northernmost Japan (2012)
  • Author(s): Zhu, C., Yoshikawa-inoue, H., et al.
  • Journal Title: Atmoshpehric Environment Volume: 50 Pages: 174-181
  • Peer Reviewed
• [Journal Article] Decreasing pH trend estimated from 35-yr time series of carbonate parameters in the Pacific sector of the Southern ocean (2012)
  • Author(s): Midorikawa, T., Yoshikawa-inoue, H., et al.
  • Journal Title: Deep-Sea Research Volume: 61 Pages: 131-139
  • Peer Reviewed
• [Journal Article] Ocean acidification off the south coast of Japan : A result from time series observation of CO2 parameters from 1994 to 2008 (2012)
  • Author(s): Ishii, M., Yoshikawa-inoue, H., et al.
  • Journal Title: Journal of Geophysical Research Volume: 116 Issue: C6
  • DOI: 10.1029/2010jc006831
  • Peer Reviewed
• [Journal Article] Biosenic methane distribution in the South Pacific and the Southern Ocean in austral summer, 2001-2002 (2012)
  • Author(s): Yoshida, O., Yoshikawa-inoue, H., et al.
  • Journal Title: Journal of Geophysical Research Volume: 116
  • Peer Reviewed
• [Journal Article] 親潮域の生物生産を支える環オホーツク海域の物質循環 (2012)
  • Author(s): 西岡純、中塚武
  • Journal Title: 海洋と生物 Volume: 198 Pages: 41-198
• [Journal Article] Recent change in the oceanic uptake rate of anthropogenic carbon in the North Pacific subpolar region determined by using a 13C time series (2011)
  • Author(s): Watanabe, Y. W., Chiba, T, Tanaka, T
  • Journal Title: Accepted in Journal of Geophysical Research Volume: 116 Issue: C2
  • DOI: 10.1029/2010jc006199
  • Peer Reviewed
• [Journal Article] Relationship between sinking organic matter and minerals in the shallow zone of the western subarctic Pacific (2011)
  • Author(s): Shigemitsu, M.
  • Journal Title: Journal of Oceanography Volume: 66(5) Issue: 5 Pages: 697-708
  • DOI: 10.1007/s10872-010-0057-1
  • Peer Reviewed
• [Journal Article] Mechanisms controlling dissolved iron distribution in the North Pacific : A model study (2011)
  • Author(s): Misumi, K.
  • Journal Title: J.Geophys.Res.-Biogeosciences Volume: 116 Issue: G3
  • DOI: 10.1029/2010jg001541
  • Peer Reviewed
• [Journal Article] 札幌におけるエアロゾル中の水溶性イオンおよび微量金属元素の長期変化について (2011)
  • Author(s): 南秀樹, ら
  • Journal Title: エアロゾル研究 Volume: 26 Pages: 221-233
  • NAID: 130000965378
  • Peer Reviewed
• [Journal Article] オホーツク海と太平洋をつなぐ物質循環-潮汐混合のインパクト (2011)
  • Author(s): 渡辺農
  • Journal Title: 月刊海洋 Volume: 43 Pages: 662-667
• [Journal Article] 親潮域・混合域の鉄濃度の季節変動を支配するプロセス (2011)
  • Author(s): 西岡純, ら
  • Journal Title: 月刊海洋 Volume: 43 Pages: 648-659
• [Journal Article] Recent change in the oceanic uptake rate of anthropogenic carbon in the North Pacific subpolar region determined by using a C-13 time series (2011)
  • Author(s): Watanabe, Y.W., et al
  • Journal Title: Journal of Geophysical Research Volume: 116
  • Peer Reviewed
• [Journal Article] Flux of low salinity water from Aniva Bay (Sakhalin Island) in the southern Okhotsk Sea (2011)
  • Author(s): Oguma, S., Watanabe, Y.W., et al
  • Journal Title: Estuarine Coastal and Shelf Science Volume: 91 Pages: 24-32
  • Peer Reviewed
• [Journal Article] Oceanic iron supply mechanisms which support the spring diatom bloom in the Oyashioregion, western subarctic Pacific (2011)
  • Author(s): Nishioka, J., Ono, T., Sakaoka, K., el al
  • Journal Title: Journal of Geophysical Research Volume: 116
  • NAID: 120003242990
  • Peer Reviewed
• [Journal Article] Impacts of elevated CO2 on phytoplankton community composition and organic carbon dynamics in nutrient-depleted Okhotsk Sea surface water (2010)
  • Author(s): Yoshimura, T., Nishioka, J., Watanabe, Y.W., et al
  • Journal Title: Journal of Experimental Marine Biology and Ecology Volume: 395 Pages: 191-198
  • Peer Reviewed
• [Journal Article] Decreasing trend of pH estimated from the time series of carbonate parameters observed in the western North Pacific for a quarter century (2010)
  • Author(s): Midorikawa, T., Yoshikawa, H., et al
  • Journal Title: Tellus Volume: 62B Pages: 649-459
  • Peer Reviewed
• [Journal Article] Air-sea CO2 flux in the mid-latitude western and eastern North Pacific (2010)
  • Author(s): Takamura, T., Yoshikawa, H., et al
  • Journal Title: Journal of Meteorological Society of Japan Volume: 88 Pages: 899-914
  • Peer Reviewed
• [Journal Article] Effect of snow, snow melting, and re-freezing processes on air-sea ice CO2 flux (2010)
  • Author(s): Nomura, D., Yoshikawa, H., et al
  • Journal Title: Journal of Glaciology Volume: 56 Pages: 262-270
  • Peer Reviewed
• [Journal Article] Application of an automatic approach to calibrate the NEMURO nutrient-phytoplankton-zooplankton food web model in the Oyashio region (2010)
  • Author(s): Ito, S.I., Ono, T., et al
  • Journal Title: Progress in Oceanography Volume: 87 Pages: 186-200
  • Peer Reviewed
• [Journal Article] Dynamics of dissolved and particulate organic matter during the spring bloom in the Oyashio region of the western subarctic Pacific Ocean (2010)
  • Author(s): Hasegawa, T., Ono, T., et al
  • Journal Title: Aquatic Microbial Ecology Volume: 60 Pages: 127-138
  • Peer Reviewed
• [Journal Article] (accepted): Intensive mixing along an island chain controls oceanic biogeochemical cycles
  • Author(s): Nishioka, J., Watanabe, Y. W., et al
  • Journal Title: Global Biogeochemical Cycles
  • Peer Reviewed
• [Presentation] オホーツク海南部・日本海北部の表層水中における鉄及び栄養塩の地理的分布 (2013)
  • Author(s): 田中美菜子、西岡純
  • Organizer: 2013年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学、東京
  • Year and Date: 2013-03-24
• [Presentation] 北太平洋高緯度域における生物起源沈降粒子フラックスの長期変動 (2012)
  • Author(s): 渡辺豊、氏家崇、南秀樹
  • Organizer: 2012年度日本海洋学会春季大会
  • Place of Presentation: 筑波大学、つくば
  • Year and Date: 2012-03-26
• [Presentation] Estimate of denitrification in the Okhotsk Sea by using oceanic excess nitrogen (2011)
  • Author(s): Itoh, M., Watanabe, Y. W., et al
  • Organizer: European Geophysical Union 2011 meeting
  • Place of Presentation: Vienna, Austria
  • Year and Date: 2011-04-01
• [Presentation] 北太平洋の炭素循環に対するオホーツク海の影響 (2010)
  • Author(s): 渡辺豊
  • Organizer: 2010年度日本海洋学会秋季大会シンポジウム「オホーツク海を起源とする熱塩・物質循環システムとその変動」
  • Place of Presentation: 東京農業大学オホーツクキャンパス、網走
  • Year and Date: 2010-09-30
• [Book] In: Linkages in Biogeochemical Cycles Between Surface Ocean and Lower Atmosphere. Eds. M. Uematsu, et al (2013)
  • Author(s): Watanabe, Y. W., et al
  • Publisher: Long-term changes of greenhouse gases in the ocean and their feedback effects on the climate
• [Book] In: Linkages in Biogeochemical Cycles Between Surface Ocean and Lower Atmosphere. Eds. M. Uematsu, et al (2013)
  • Author(s): Yoshikawa-Inoue, H., et al
  • Publisher: Temporal and Spatial Variations in Carbonate System and Air-Sea CO_2 Flux in the Kuroshio and Kuroshio st Extension
• [Book] 地球と宇宙の化学事典:「海の物質循環」 (2012)
  • Author(s): 渡辺豊(分担執筆)
  • Publisher: 朝倉書店
• [Book] 藻類ハンドブック:「DMS と DMSP」 (2012)
  • Author(s): 渡辺豊(分担執筆)
  • Publisher: NTS
• [Book] 環オホーツク海域の豊かな生態系を生み出す鉄供給システム (2012)
  • Author(s): 西岡純(分担執筆)
  • Publisher: 北海道大学出版
• [Book] 環ホーツク海域の農な生態系を生み出す鉄供給システム
  • Author(s): 西岡純(分担執筆)
  • Total Pages: 2012
  • Publisher: 北海道大学出版(掲載確定)
• [Book] 地球との化学事:「海の質循環」
  • Author(s): 渡辺農(分担執筆)
  • Publisher: 朝倉書店(印刷中)(掲載確定)