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2009 Fiscal Year Final Research Report

Analysis of biogeochemical changes in the North Pacific using long-term time-series data of dissolved oxygen

Research Project

  • PDF
Project/Area Number 19510021
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionJapan, Meteorological Research Institute

Principal Investigator

ISHII Masao  Japan, Meteorological Research Institute, 地球化学研究部, 主任研究官 (70354553)

Co-Investigator(Kenkyū-buntansha) SASANO Daisuke  気象庁気象研究所, 地球化学研究部, 研究官 (10462524)
TOKIEDA Takayuki  気象庁気象研究所, 地球化学研究部, 主任研究官 (90354555)
NAKANO Toshiya  気象庁気象研究所, 海洋研究部, 主任研究官 (40354550)
Co-Investigator(Renkei-kenkyūsha) MATSUEDA Hidekazu  気象庁気象研究所, 地球化学研究部, 室長 (60354552)
Project Period (FY) 2007 – 2009
Keywords溶存酸素 / 酸素センサー / 物質循環 / 気候変動
Research Abstract

Data of dissolved oxygen in the western North Pacific were compiled and quality-checked by a statistical technique. The errors due to interpolation of discrete oxygen data were also evaluated by comparing with vertical continuous data obtained by a new rapid-response oxygen sensor that was introduced and examined in this study. In the northern subtropical and subarctic zones, significant trend of oxygen decreases were determined at depths between 500m and 2000m. These decreasing trend are mainly attributable to the decrease in density that is associated with ocean warming, but those at the depth around 1000m is ascribed to the changes in the ocean circulation.

  • Research Products

    (11 results)

All 2009 2008 Other

All Journal Article (1 results) Presentation (8 results) Book (2 results)

  • [Journal Article] Changes in water properties around North Pacific intermediate water between the 1980s, 1990s and 2000s.

    • Author(s)
      Shinya Kouketsu, Masao Fukasawa, Daisuke Sasano, Yuichiro Kumamoto, Takeshi Kawano, Hiroshi Uchida, Toshimasa Doi
    • Journal Title

      Deep-Sea Research II (in press)

  • [Presentation] 親潮・黒潮における溶存酸素の長期トレンド2009

    • Author(s)
      笹野大輔
    • Organizer
      2009日本海洋学会秋季大会
    • Place of Presentation
      京都大学吉田キャンパス(京都市)
    • Year and Date
      2009-09-27
  • [Presentation] Trend of carbon increase and oxygen decrease in the interior of the western North Pacific subtropical gyre2009

    • Author(s)
      Masao Ishii
    • Organizer
      8th International Carbon Dioxide Conference
    • Place of Presentation
      イエナ(ドイツ)
    • Year and Date
      2009-09-13
  • [Presentation] Oxygen decrease in the western Pacific along 165E.2009

    • Author(s)
      Daisuke Sasano
    • Organizer
      8th I nternational Carbon Dioxide Conferen ce
    • Place of Presentation
      イエナ(ドイツ)
    • Year and Date
      2009-09-13
  • [Presentation] Trend of DIC increase i n the western North Pacific subtropic al gyre during 1994-2008.2009

    • Author(s)
      Masao Ishii
    • Organizer
      Decadal Variations of the Ocean's Interior Car bon Cycle: Synthesis and Vulnerabilities
    • Place of Presentation
      アスコナ(スイス)
    • Year and Date
      2009-07-13
  • [Presentation] 溶存酸素量の長期計測データの品質管理2008

    • Author(s)
      笹野大輔
    • Organizer
      2008年度日本海洋学会春季大会
    • Place of Presentation
      東京海洋大学品川キャンパス(東京)
    • Year and Date
      2008-03-26
  • [Presentation] 東経137度線における溶存酸素量の長期トレンドについて2008

    • Author(s)
      高谷祐介
    • Organizer
      2008年度日本海洋学会春季大会
    • Place of Presentation
      東京海洋大学品川キャンパス(東京)
    • Year and Date
      2008-03-26
  • [Presentation] A result of an effici ency test on new high-response DO s ensor“RINKO"in the western North Pacific.2008

    • Author(s)
      Daisuke Sasano
    • Organizer
      Asia-Pacific Workshop on Ca rbon Cycle Observations
    • Place of Presentation
      国立環境研究所(つくば市)
    • Year and Date
      2008-03-18
  • [Presentation] Decadal Trend of Di ssolved Oxygen in the western Pacifi c along 165°E2008

    • Author(s)
      Daisuke Sasano
    • Organizer
      2008 Ocean Sciences Meeting
    • Place of Presentation
      オーランド(米国)
    • Year and Date
      2008-03-05
  • [Book] Oxygen. In: North Pacific Ecosystem Status Report II. North Pacific Marine Science Organization

    • Author(s)
      Daisuke Sasano, Oyashio
    • Publisher
      Water properties(in press)
  • [Book] 炭素循環. 図説地球環境-観測・予測-(秋元肇, 他編)

    • Author(s)
      石井雅男
    • Publisher
      朝倉書店(編集中)

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Published: 2011-06-18   Modified: 2016-04-21  

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