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栄養塩供給と湧昇から迫る新海洋区系:超・高解像度北太平洋物理・生物モデル解析

Publicly Offered Research

Project AreaNew Ocean Paradigm on Its Biogeochemistry, Ecosystem and Sustainable Use
Project/Area Number 15H01606
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionHokkaido University

Principal Investigator

見延 庄士郎  北海道大学, 理学研究院, 教授 (70219707)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Keywordsサブメソスケール現象 / 海洋中規模渦 / 栄養塩 / 生物生産 / 湧昇 / 鉛直混合 / 水平移流 / 混合 / 北太平洋
Outline of Annual Research Achievements

本研究では,1/30度の超高解像度・サブメソスケール許容および1/10度の高解像度・渦解像の海洋物理モデルとそれと結合した簡易生態系モデルの解析によって,サブメソスケールと海洋中規模渦とが有光層への栄養塩供給過程とそれが引き起こす生物生産にどのような役割を果たすのかを明らかにする.具体的には,1) サブメソスケール現象が広域の生物生産にどのような影響をもたらすのか?2)黒潮から切離した中規模渦が黒潮の南に低栄養・低生産領域にどのような影響をもたらすのか?の二つの問いに答える.
最初の問いに対しては,サブメソスケール現象を数値モデルで表現することで,広域の生物生産が亜寒帯・亜熱帯ともに増加することが示された.栄養塩フラックス解析およびブルームタイミング解析によって,サブメソスケール現象が生物生産を強めるメカニズムは,亜熱帯域では栄養塩の鉛直輸送を強めて生物生産を増加させる一方,亜寒帯では浅い混合層が作られることによってブルームのタイミングが早まるためであることが判明した.
また後者の問については,渦追跡と栄養塩の収支解析を組み合わせることで,黒潮続流の北の栄養塩に富んだ水が黒潮続流から切離して南に移動する冷水に補足された栄養塩輸送が,黒潮続流の南に拡がる貧栄養海域に重要な寄与を与えていることが明らかとなった.これらの結果はサブメソスケール現象およびメソスケール渦が,栄養塩の供給,ブルームタイミングそして生物生産において,重要な役割を果たしそれが場所によって異なることを意味している.
また計画当初には予定していなかった成果として,海洋貧酸素化の全球解析を行い,過去半世紀において,北太平洋で特に大きく溶存酸素が減少していることが明らかになった.この成果はGeophysical Research Letters誌に受理された.

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (29 results)

All 2017 2016 2015 Other

All Int'l Joint Research (5 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 4 results,  Acknowledgement Compliant: 4 results) Presentation (19 results) (of which Int'l Joint Research: 13 results,  Invited: 4 results) Remarks (1 results)

  • [Int'l Joint Research] ハワイ大学/ジョージア工科大学/ワシントン大学(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] フランス海洋利用研究所(フランス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] 米国海洋大気庁/ハワイ大学/ウィスコンシン大学(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Pacific Biological Station/Salmoforsk International(カナダ)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] 太平洋水産科学研究所(ロシア連邦)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Upper Ocean O2 trends: 1958-20152017

    • Author(s)
      Takamitsu Ito, Shoshiro Minobe, Matthew C. Long, Curtis Deutsch
    • Journal Title

      Geophysical Research Letters

      Volume: 印刷中 Issue: 9 Pages: 4214-4223

    • DOI

      10.1002/2017gl073613

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Dynamical downscaling of future sea-level change in the western North Pacific using ROMS2016

    • Author(s)
      Zhao-Jun Liu, Shoshiro Minobe, Yoshi N. Sasaki, Mio Terada
    • Journal Title

      Journal of Oceanography

      Volume: 72 Issue: 6 Pages: 905-922

    • DOI

      10.1007/s10872-016-0390-0

    • NAID

      120006366473

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] The atmospheric frontal response to SST perturbations in the Gulf Stream region2016

    • Author(s)
      Rhys Parfitt, Arnaud Czaja, Shoshiro Minobe, Akira Kuwano-Yoshida
    • Journal Title

      Geophysical Research Letters

      Volume: 43 Issue: 5 Pages: 2299-2306

    • DOI

      10.1002/2016gl067723

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] The Pacific Decadal Oscillation, Revisited2016

    • Author(s)
      Matthew Newman, Michael A. Alexander, Toby R. Ault, Kim M. Cobb, Clara Deser, Emanuele Di Lorenzo, Nathan J. Mantua, Arthur J. Miller, Shoshiro Minobe, Hisashi Nakamura, Niklas Schneider, Daniel J. Vimont, Adam S. Phillips, James D. Scott2, and Catherine A. Smith
    • Journal Title

      Journal of Climat

      Volume: 印刷中 Issue: 12 Pages: 4399-4427

    • DOI

      10.1175/jcli-d-15-0508.1

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 北太平洋におけるサブメソスケール現象が生物生産にもたらす影響:海洋大循環-海洋生態系結合モデルの解析2017

    • Author(s)
      畑嶋良亮・見延庄士郎・笹井義一・佐々木英治
    • Organizer
      日本海洋学会海洋生物学研究会第一回シンポジウム
    • Place of Presentation
      東京海洋大学(東京都・港区)
    • Year and Date
      2017-03-22
    • Related Report
      2016 Annual Research Report
  • [Presentation] Causality linkages in atmosphere, ocean and marine ecosystem over the North Pacific: Modes, processes and prediction2017

    • Author(s)
      Shoshiro Minobe
    • Organizer
      International symposium “Drivers of dynamics of small pelagic fish resources
    • Place of Presentation
      Victoria(Canada)
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 栄養塩供給と湧昇から迫る新海洋区系:超・高解像度北太平洋物理生物モデル解析2017

    • Author(s)
      見延庄士郎・佐々木克徳・畑嶋良亮・長尾俊平・笹井一義・佐々木英治
    • Organizer
      新学術領域研究「新海洋像:その機能と持続的利用」領域全体集会:成果報告会
    • Place of Presentation
      東京大学農学部(東京都・文京区)
    • Year and Date
      2017-03-04
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Dynamical downscaling of future sea-level change in the western North Pacific using ROMS2016

    • Author(s)
      Zhao-Jun Liu, Shoshiro Minobe, Yoshi N. Sasaki, Mio Terada
    • Organizer
      CLIVAR Open Science Conference
    • Place of Presentation
      Qingdao(China)
    • Year and Date
      2016-09-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Pacific decadal oscillation, revisited2016

    • Author(s)
      Matthew Newman, Michael Alexander, Toby Ault, Kim Cobb, Clara Deser, Emanuele Di Lorenzo, Nathan Mantua, Arthur Miller, Shoshiro Minobe, Hisashi Nakamura, Niklas Schneider, Daniel Vimont, Adam Phillips
    • Organizer
      CLIVAR Open Science Conference
    • Place of Presentation
      Qingdao(China)
    • Year and Date
      2016-09-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CMIP5モデルでの北太平洋の領域海面高度将来変化と海洋内部および外力変化2016

    • Author(s)
      寺田 美緒・見延 庄士郎
    • Organizer
      日本海洋学会秋季大会
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Year and Date
      2016-09-12
    • Related Report
      2016 Annual Research Report
  • [Presentation] 1/30度サブメソスケール許容モデルと1/10度渦解像モデルにおける北太平洋の栄養塩輸送と生物生産2016

    • Author(s)
      畑嶋良亮・見延庄士郎・笹井義一・佐々木英治
    • Organizer
      日本海洋学会秋季大会
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Year and Date
      2016-09-12
    • Related Report
      2016 Annual Research Report
  • [Presentation] 海洋の地球温暖化問題に関する海洋物理と海洋化学・海洋生物学の連携の種:CMIPを中心として2016

    • Author(s)
      見延庄士郎・寺田美緒・劉昭君・佐々木克徳
    • Organizer
      日本海洋学会春季大会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2016-03-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] The Pacific Decadal Oscillation, revisited2016

    • Author(s)
      Matthew Newman, Arthur Miller, Michael Alexander, Toby Ault, Kim Cobb, Clara Deser, Emanuele Di Lorenzo, Nathan Mantua, Shoshiro Minobe, Hisashi Nakamura, Niklas Schneider, Daniel Vimont, Adam Phillips, Catherine Smith, James Scott
    • Organizer
      2016 Ocean Sciences Meeting
    • Place of Presentation
      ニューオリンズ(米国)
    • Year and Date
      2016-02-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The influence of the gulf stream on European wintertime blocking: impacts and mechanism2016

    • Author(s)
      Shoshiro Minobe, Christopher H. O'Reilly, Akira Kuwano-Yoshida
    • Organizer
      2016 Ocean Sciences Meeting
    • Place of Presentation
      ニューオリンズ(米国)
    • Year and Date
      2016-02-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Climate Dynamics Panel and mid-latitude ocean’s influence on the atmosphere2016

    • Author(s)
      Shoshiro Minobe
    • Organizer
      CLIVAR/JAMSTEC Workshop on the Kuroshio Current and Extension System: Theory, Observations, and Ocean Climate Modelling
    • Place of Presentation
      海洋研究開発機構(神奈川県・横浜市)
    • Year and Date
      2016-01-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SST habitat and food change projections for Pacific salmon (Oncorhynchus spp.) in the North Pacific and adjacent seas based on CMIP5 climate models2015

    • Author(s)
      Shoshiro Minobe, Hiromichi Ueno, James R. Irvine, Alexander V. Zavolokin, Katherine W. Myers, Mio Terada, Mitsuho Oe and Skip McKinnell
    • Organizer
      Developing new ocean provinces on their biogeochemistry and ecosystems
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-12-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A01 栄養塩供給と湧昇から迫る新海洋区系:超・高解像度北太平洋物理生物モデル解析2015

    • Author(s)
      見延庄士郎・佐々木克徳・Hanna Na・畑嶋良亮・寺田美緒
    • Organizer
      新学術領域研究「新海洋像:その機能と持続的利用」領域全体集会:平成27年度成果報告
    • Place of Presentation
      KKRホテル熱海会議場(静岡県・熱海市)KKRホテル熱海会議場(静岡県・熱海市)
    • Year and Date
      2015-10-31
    • Related Report
      2015 Annual Research Report
  • [Presentation] SST habitat and food change projections for Pacific salmon (Oncorhynchus spp.) in the North Pacific and adjacent seas based on CMIP5 climate models2015

    • Author(s)
      Shoshiro Minobe, Hiromichi Ueno, James R. Irvine, Alexander V. Zavolokin, Katherine W. Myers, Mio Terada, Mitsuho Oe and Skip McKinnell
    • Organizer
      PICES 2015 “Change and sustanability of the North Pacific”
    • Place of Presentation
      青島(中国)
    • Year and Date
      2015-10-22
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How important will submeso-scale phenomena become?2015

    • Author(s)
      Shoshiro Minobe
    • Organizer
      Submesoscale Oceanography -Prospect for a new world -
    • Place of Presentation
      愛媛大学(松山市・愛媛県)
    • Year and Date
      2015-09-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Influence of sub-mesoscale phenomena on biological production over the North Pacific : Analysis of high-resolution coupled OGCM-marine ecosystem models2015

    • Author(s)
      Ryosuke Hatashima, Shoshiro Minobe, Yoshikazu Sasai, Hideharu Sasaki
    • Organizer
      Submesoscale Oceanography -Prospect for a new world -
    • Place of Presentation
      愛媛大学(松山市・愛媛県)
    • Year and Date
      2015-09-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamical downscaling of future sea-level change in the western North Pacific using ROMS2015

    • Author(s)
      Zhaojun Liu, Shoshiro Minobe, Yoshi N. Sasaki, Mio Terada
    • Organizer
      12th Asia Oceania Geosciency Society annual meeting
    • Place of Presentation
      シンガポール (シンガポール)
    • Year and Date
      2015-08-04
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Pacific decadal oscillation, revisited2015

    • Author(s)
      M. Newman, M. Alexander, T. Ault, K. Cobb, C. Deser, E. DiLorenzo, N. Mantua, A. Miller, S. Minobe, H. Nakamura, N. Schneider, D. Vimont
    • Organizer
      26th IUGG General Assembly 2015
    • Place of Presentation
      プラハ(チェコ)
    • Year and Date
      2015-06-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Habitat change projections for Pacific salmon (Oncorhynchus spp.) in the North Pacific and adjacent seas based on CMIP5 climate models2015

    • Author(s)
      Shoshiro Minobe, James R. Irvine, Alexander V. Zavolokin, Shigehiko Urawa, Hiromichi Ueno, Elizabeth A. Logerwell, Katherine W. Myers, and Mio Terada
    • Organizer
      International Symposium on “Pacific Salmon and Steelhead production in a changing climate: Past, presenta and future”
    • Place of Presentation
      神戸国際会議場(兵庫県・神戸市)
    • Year and Date
      2015-05-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] 新学術領域「新海洋像:その機能と持続的利用」

    • URL

      http://ocean.fs.a.u-tokyo.ac.jp/

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2022-02-16  

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