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Observational investigation of surface layer salinity change and the intensification of hydrological cycle in the global ocean

Research Project

Project/Area Number 22510023
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

HOSODA Shigeki  独立行政法人海洋研究開発機構, 地球環境変動領域, チームリーダー代理 (60399582)

Co-Investigator(Renkei-kenkyūsha) MASUDA Shuuhei  独立行政法人海洋研究開発機構, 地球環境変動領域, チームリーダー (30358767)
KAWAI Yoshimi  独立行政法人海洋研究開発機構, 地球環境変動領域, チームリーダー (40374897)
TOMITA Hiroyuki  名古屋大学, 地球水循環研究センター, 拠点研究員 (10435844)
SUGA Toshio  東北大学, 理学研究科, 教授 (70211977)
Research Collaborator HASEGAWA Takuya  独立行政法人海洋研究開発機構, 地球環境変動領域, 研究員
SATO Kanako  独立行政法人海洋研究開発機構, 地球環境変動領域, 技術主任
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords海洋物理 / 陸水学 / 環境変動 / 気候変動 / 水循環 / 混合層 / 熱帯表層塩分 / Argo / 海洋表層混合層 / Argoフロート / 季節躍層 / 塩分変動 / 北太平洋 / 混合層データセット / 太平洋 / データ同化
Research Abstract

Heat penetration process in the North Pacific Ocean and Quasi-decadal (QD) surface salinity variability in the tropical Pacific Ocean were quantitatively investigated using observational data. The signal of QD variability is significantly included in the surface salinity trend. The downward heat penetration from the mixed layer to the subsurface ocean is crucial role for the surface temperature even during summer season, indicating that the properties in the shallow mixed layer are influenced by exchanges from that in the lower layer. Those results are important parts of the research for mechanisms of the global surface salinity change, improving the previous knowledge of the global climate and environment changes.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (44 results)

All 2013 2012 2011 2010 Other

All Journal Article (12 results) (of which Peer Reviewed: 7 results) Presentation (28 results) (of which Invited: 1 results) Remarks (4 results)

  • [Journal Article] Upper-ocean salinity variability in the tropical Pacific: Case study for quasidecadal shift during 2000s using TRITON buoys and Argo floats2013

    • Author(s)
      Hasegawa, T., K. Ando, I. Ueki, K. Mizuno, S. Hosoda
    • Journal Title

      J. Climate

      Volume: (印刷中)

    • URL

      http://ams.allenpress.com/.

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Upper-ocean salinity variability in the tropical Pacific: Case study for quasidecadal shift during 2000s using TRITON buoys and Argo floats2013

    • Author(s)
      Takuya Hasegawa
    • Journal Title

      Journal of Climate

      Volume: 印刷中

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 民間船によるアルゴフロート投入 ~国際科学プロジェクト「アルゴ計画」への貢献~2012

    • Author(s)
      細田滋毅,平野瑞恵,佐藤佳奈子,須賀利雄,小林大洋,荻田尚子,河野健
    • Journal Title

      JOS News Letter

      Volume: 2(1) Pages: 6-7

    • URL

      http://kaiyo-gakkai.jp/jos/publications/newsletter.

    • Related Report
      2012 Final Research Report
  • [Journal Article] The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific2012

    • Author(s)
      Shinya Kouketsu
    • Journal Title

      Journal of Oceanography

      Volume: 68 Issue: 1 Pages: 63-77

    • DOI

      10.1007/s10872-011-0049-9

    • URL

      http://www.springer.com/earth+sciences+and+geography/oceanography/journal/10872.

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 民間船によるアルゴフロート投入 -国際科学プロジェクト「アルゴ計画」への貢献-2012

    • Author(s)
      細田滋毅,平野瑞恵,佐藤佳奈子,須賀利雄,小林大洋,荻田尚子,河野健
    • Journal Title

      JOS News Letter

      Volume: 2 Pages: 6-7

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 北太平洋亜熱帯モード水と亜熱帯反流の十年規模変動2012

    • Author(s)
      小橋史明,細田滋毅,岩坂直人
    • Journal Title

      沿岸海洋研究

      Volume: 50 Pages: 143-153

    • NAID

      130007797402

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation and subduction of Central Mode Water based on profiling float data 2003-20082011

    • Author(s)
      Oka, E., S. Kouketsu, K. Toyama, K. Uehara, T. Kobayashi, S. Hosoda, and T. Suga
    • Journal Title

      J. Phys. Oceanogr

      Volume: 41 Pages: 113-126

    • URL

      http://www.springer.com/earth+sciences+and+geography/oceanography/journal/10872.

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Argo計画:気候監視のために全球海洋の変動をリアルタイムで捉える観測システム,日本海水学会誌特集号「地球環境問題への対策」2011

    • Author(s)
      細田滋毅,須賀利雄
    • Journal Title

      Bull. Soc. Sea Water Sci

      Volume: 65 Pages: 29-34

    • URL

      https://www.jstage.jst.go.jp/browse/swsj/-char/ja.

    • Related Report
      2012 Final Research Report
  • [Journal Article] Improved description of global mixed-layer depth using Argo profiling floats2010

    • Author(s)
      Hosoda, S., T. Ohira, K. Sato, and T. Suga
    • Journal Title

      J. Oceanogr

      Volume: 66 Pages: 773-787

    • NAID

      10029034361

    • URL

      http://www.springer.com/earth+sciences+and+geography/oceanography/journal/10872.

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 全球表層塩分変動 -Argoによって得られた水循環変動の可能性-2010

    • Author(s)
      細田滋毅
    • Journal Title

      月刊海洋

      Volume: 42(11) Pages: 621-627

    • URL

      http://www.kaiyo-chikyu.com/.

    • Related Report
      2012 Final Research Report
  • [Journal Article] Improved description of global mixed layer depth using Argo profiling floats2010

    • Author(s)
      細田滋毅
    • Journal Title

      Journal of Oceanography

      Volume: 66 Pages: 773-787

    • NAID

      10029034361

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 全球表層塩分変動-Argoによって得られた水循環変動の可能性-2010

    • Author(s)
      細田滋毅
    • Journal Title

      月刊海洋

      Volume: 42 Pages: 621-627

    • Related Report
      2010 Annual Research Report
  • [Presentation] Argo float - Innovation for autonomous observations of global oceans -2012

    • Author(s)
      Hosoda, S
    • Organizer
      9th Japanese German Frontiers of Science Symposium (Invited), Abstract book
    • Place of Presentation
      Potsdam Germany
    • Year and Date
      2012-10-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Experiments of ocean state estimation and forecast in 2010-2011using K7 global 4D-VAR coupled data assimilation system and effects of Argo data2012

    • Author(s)
      Nishikawa S., Y. Ishikawa, S. Masuda, T. Wakamatsu, T. Mochizuki, H. Igarashi, Y. Hiyoshi, Y. Sasaki, H. Nishikawa, S. Hosoda, K. Sato, T. Awaji
    • Organizer
      4th Argo Science Workshop
    • Place of Presentation
      Venice, Itary
    • Year and Date
      2012-09-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Heat penetration of downward net heat flux below shallow seasonal thermocline during spring- summer season in the North Pacific Ocean2012

    • Author(s)
      Hosoda, S., M. Nonaka, T. Tomita, B. Taguchi, H. Tomita, N. Iwasaka, T. Suga
    • Organizer
      4th Argo Science Workshop
    • Place of Presentation
      Venice, Italy
    • Year and Date
      2012-09-27
    • Related Report
      2012 Final Research Report
  • [Presentation] 4次元変分法大気海洋結合データ同化システムを用いた2010-2011年同化・予測実験とArgoデータの利用(II)2012

    • Author(s)
      西川史郎, 石川洋一, 増田修平, 若松剛, 望月崇,五十嵐弘道,日吉善久,佐々木祐二,西川悠,細田滋毅,佐藤佳奈子, 淡路敏之
    • Organizer
      2012年度日本海洋学会秋季大会
    • Place of Presentation
      静岡
    • Year and Date
      2012-09-15
    • Related Report
      2012 Final Research Report
  • [Presentation] Development of a global 4D-VAR data assimilation and forecast system focusing on climate variability in the North Pacific and use of Argo profiling data2012

    • Author(s)
      Nishikawa, S., Y. Ishikawa, S. Masuda, T. Wakamatsu, T. Mochizuki, H. Igarashi, Y. Hiyoshi, Y. Sasaki, H. Nishikawa, S. Hosoda, K. Sato, T. Awaji
    • Organizer
      Experiment of 2010-2011, 2nd International Symposium: Effects of Climate Change on the World's Oceans
    • Place of Presentation
      麗水・韓国
    • Year and Date
      2012-05-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Quasi-decadal variability of upper ocean salinity in the western equatorial Pacific and mid-latitude of South Pacific2012

    • Author(s)
      Hasegawa T., I. Ueki, K. Mizuno, S. Hosoda
    • Organizer
      The 10th International Conference on Southern Hemisphere Meteorology and Oceanography
    • Place of Presentation
      ヌメア・ニューカレドニア
    • Year and Date
      2012-04-26
    • Related Report
      2012 Final Research Report
  • [Presentation] 4次元変分法大気海洋結合データ同化予測システムを用いた2010-2011年同化予測実験とArgoデータの利用2012

    • Author(s)
      西川史朗・石川洋一・増田周平・五十嵐弘道・日吉善久・佐々木祐二・西川悠・望月崇・細田滋毅・佐藤佳奈子・淡路敏之
    • Organizer
      2012年度日本海洋学会春季大会
    • Place of Presentation
      筑波大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Heat storage capability below the seasonal thermocline for the seasonal sea surface heat exchange in the North Pacific Ocean2012

    • Author(s)
      細田滋毅、野中正見、冨田智彦、田口文明、富田裕之、岩坂直人
    • Organizer
      2012 Ocean Science Meeting
    • Place of Presentation
      Salt Palace会議場・ソルトレークシティー・米国
    • Year and Date
      2012-02-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] ecent global changes in surface layer salinity depicted by Argo: Footprint of the global hydrological cycle enhancement2011

    • Author(s)
      Hosoda, S., T. Suga, K. Mizuno
    • Organizer
      Joint Argo and Altimeter workshop
    • Place of Presentation
      San Diego, CA
    • Year and Date
      2011-10-18
    • Related Report
      2012 Final Research Report
  • [Presentation] Recent global changes in surface layer salinity depicted by Argo : Footprint of the global hydrological cycle enhancement2011

    • Author(s)
      細田滋毅、須賀利雄、水野恵介
    • Organizer
      Joint Argo and Altimeter workshop
    • Place of Presentation
      Manchester Grand Hyatt Hotel・サンディエゴ・米国
    • Year and Date
      2011-10-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] 南太平洋熱帯域における塩分の準10年スケール変動2011

    • Author(s)
      西川史朗,石川洋一,増田周平,五十嵐 弘道,日吉善久,佐々木祐二,西川悠, 望月崇, 若松剛, 細田滋毅,佐 藤佳奈子, 淡路敏之
    • Organizer
      2011年度日本海洋学会秋季大会
    • Place of Presentation
      福岡
    • Year and Date
      2011-09-27
    • Related Report
      2012 Final Research Report
  • [Presentation] 北太平洋での貯熱量変動及び海面加熱の浸透深度の時空間特性2011

    • Author(s)
      細田滋毅・野中正見・冨田智彦・田口文明
    • Organizer
      2011年度日本海洋学会秋季大会
    • Place of Presentation
      福岡
    • Year and Date
      2011-09-27
    • Related Report
      2012 Final Research Report
  • [Presentation] 北太平洋での貯熱量変動及び海面加熱の浸透深度の時空間特性2011

    • Author(s)
      細田滋毅、野中正見、冨田智彦、田口文明
    • Organizer
      2011年度日本海洋学会秋季大会
    • Place of Presentation
      九州大学応用力学研究所
    • Year and Date
      2011-09-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 南太平洋熱帯域における塩分の準10年スケール変動2011

    • Author(s)
      長谷川拓也・植木巌・安藤健太郎・水野恵介・細田滋毅
    • Organizer
      2011年度日本海洋学会秋季大会
    • Place of Presentation
      九州大学応用力学研究所
    • Year and Date
      2011-09-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Argo観測による海洋混合層および貯熱量の海盆規模分布と季節変動2011

    • Author(s)
      細田滋毅
    • Organizer
      新学術領域研究総会
    • Place of Presentation
      札幌
    • Year and Date
      2011-08-02
    • Related Report
      2012 Final Research Report
  • [Presentation] Characteristics of summer shallow mixed layer development in the North Western Pacific Ocean -Gridded Argo Mixed layer Depth Dataset(MILA GPV)-2011

    • Author(s)
      Hosoda S
    • Organizer
      2011 IUGG
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2011-07-02
    • Related Report
      2012 Final Research Report
  • [Presentation] Characteristics of summer shallow mixed layer development in the North Western Pacific Ocean-Gridded Argo Mixed layer Depth Dataset (MILA GPV)-2011

    • Author(s)
      細田滋毅、野中正見、冨田智彦、田口文明
    • Organizer
      2011 IUGG
    • Place of Presentation
      メルボルン国際会議場・メルボルン・オーストラリア
    • Year and Date
      2011-07-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] 北太平洋の浅い混合層に伴う貯熱量の時空間特性2011

    • Author(s)
      細田滋毅・野中正見・冨田智彦・田口文明・富田裕之・岩坂直人
    • Organizer
      2011年度日本海洋学会春季大会
    • Place of Presentation
      柏
    • Year and Date
      2011-03-25
    • Related Report
      2012 Final Research Report
  • [Presentation] 北西太平洋の浅い混合層に伴う貯熱量の時空間特性2011

    • Author(s)
      細田滋毅
    • Organizer
      2011年度日本海洋学会春季大会
    • Place of Presentation
      東京大学大気海洋研究所(千葉県柏市)
    • Year and Date
      2011-03-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 春夏季における季節躍層の発達過程2010

    • Author(s)
      細田滋毅, 野中正見, 冨田智彦, 田口文明, 富田裕之, 岩坂直人
    • Organizer
      2010年度日本海洋学会秋季大会
    • Place of Presentation
      福岡
    • Year and Date
      2010-09-17
    • Related Report
      2012 Final Research Report
  • [Presentation] 春夏季における季節躍層の発達過程2010

    • Author(s)
      細田滋毅
    • Organizer
      2010年度日本海洋学会秋季大会
    • Place of Presentation
      東京農業大学(北海道網走市)
    • Year and Date
      2010-09-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] Argo float -Innovation for autonomous observations of global oceans-

    • Author(s)
      Shigeki Hosoda
    • Organizer
      9th Japanese German Frontiers of Science Symposium
    • Place of Presentation
      ポツダム・ドイツ
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Quasi-decadal variability of upper ocean salinity in the western equatorial Pacific and mid-latitude of South Pacific

    • Author(s)
      Takuya Hasegawa
    • Organizer
      The 10th International Conference on Southern Hemisphere Meteorology and Oceanography
    • Place of Presentation
      ヌメア・ニューカレドニア
    • Related Report
      2012 Annual Research Report
  • [Presentation] Decadal variations of the North Pacific subtropical mode water and their dynamical influence on the subtropical gyre

    • Author(s)
      Fumiaki Kobashi
    • Organizer
      4th Argo Science Workshop
    • Place of Presentation
      ベニス・イタリア
    • Related Report
      2012 Annual Research Report
  • [Presentation] Heat penetration of downward net heat flux below shallow seasonal thermocline during spring- summer season in the North Pacific Ocean

    • Author(s)
      Shigeki Hosoda
    • Organizer
      4th Argo Science Workshop
    • Place of Presentation
      ベニス・イタリア
    • Related Report
      2012 Annual Research Report
  • [Presentation] 4次元変分法大気海洋結合データ同化システムを用いた2010-2011年同化・予測実験とArgoデータの利用(II)

    • Author(s)
      西川史郎
    • Organizer
      2012年度日本海洋学会秋季大会
    • Place of Presentation
      清水・静岡
    • Related Report
      2012 Annual Research Report
  • [Presentation] Development of a global 4D-VAR data assimilation and forecast system focusing on climate variability in the North Pacific and use of Argo profiling data: Experiment of 2010-2011

    • Author(s)
      Shiro Nishikawa
    • Organizer
      2nd International Symposium: Effects of Climate Change on the World's Oceans
    • Place of Presentation
      麗水・韓国
    • Related Report
      2012 Annual Research Report
  • [Presentation] Experiments of ocean state estimation and forecast in 2010-2011using K7 global 4D-VAR coupled data assimilation system

    • Author(s)
      Shiro Nishikawa
    • Organizer
      4th Argo Science Workshop
    • Place of Presentation
      ベニス・イタリア
    • Related Report
      2012 Annual Research Report
  • [Remarks] Argo JAMSTEC Web page

    • URL

      http://www.jamstec.go.jp/ARGO/

    • Related Report
      2012 Final Research Report
  • [Remarks] アウトリーチの一環として,Argo計画の活動を広く一般に紹介するために,パンフレットを作成.

    • Related Report
      2012 Final Research Report
  • [Remarks] Argo JAMSTEC

    • URL

      http://www.jamstec.go.jp/ARGO/argo_web/argo/

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.jamstec.go.jp/ARGO/argo_web/MILAGPV/index.html

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2019-07-29  

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