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Variations in the East Asian summer monsoon for the last 400 ky based on foraminiferal Mg/Ca and oxygen isotope in the northern East China Sea

Research Project

Project/Area Number 15K21656
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Geology
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

Kubota Yoshimi  独立行政法人国立科学博物館, 地学研究部, 研究員 (80710946)

Research Collaborator HOLBOURN Ann  
CLEMENS Steven  
KIMOTO Katsunori  
SAGAWA Takuya  
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsアジアモンスーン / 氷期間氷期サイクル / 浮遊性有孔虫 / Mg/Ca / 酸素同位体比 / 塩分復元 / 東アジア夏季モンスーン / 有孔虫 / 軌道要素 / 東シナ海 / IODP / モンスーン / 微量元素分析 / Mg/Ca古水温
Outline of Final Research Achievements

We reconstructed oxygen isotope (δ18O )of seawater by using Mg/Ca and δ18O of planktic foraminifera for the last 400 k in the northern East China Sea in order to understand orbital scale East Asian summer monsoon variability. As a results, unlike Yangtze River Valley speleothem δ18O, dominated almost exclusively by precession-band (23-ky) cyclicity, local seawater δ18O is dominated by eccentricity (100-ky) and obliquity (41-ky) cycles, with almost no precession-scale variance.. These results, consistent with records outside the Yangtze River Valley, suggest that East Asian monsoon rainfall is more sensitive to greenhouse gas and high latitude ice sheet forcing than to direct insolation forcing.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (23 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (11 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] Brown University(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Korea Maritime and Ocean Univeristy(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Christian-Albrechts-Universitat(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Key Laborat. of Mar. Geol. and Envir.(中国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Universiteit Utrecht(オランダ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ブラウン大学(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] クリスチャン アブレヒト大学(ドイツ)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] 韓国海洋大学(韓国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ユトレヒト大学(オランダ)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ブラウン大学(米国)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research] クリスチャン・アルブレヒト大学キール(ドイツ)

    • Related Report
      2015 Research-status Report
  • [Journal Article] High-resolution and -precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 3462018

    • Author(s)
      R. Tada, T. Irino, K. Ikehara, A. Karasuda, S. Sugisaki, C. Xuan, T. Sagawa, T. Itaki, Y. Kubota, et al.
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 5 Issue: 1 Pages: 19-19

    • DOI

      10.1186/s40645-018-0167-8

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differing oxygen isotopic signals of two Globigerinoides ruber (white) morphotypes in the East China Sea: Implications for paleoenvironmental reconstructions.2017

    • Author(s)
      Carter, A., Clemens, S., Kubota, Y., Holbourn, A. & Martin, A.
    • Journal Title

      Marine Micropaleontology

      Volume: - Pages: 1-9

    • DOI

      10.1016/j.marmicro.2017.01.001

    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Proceedings of the Integrated Ocean Drilling Program2015

    • Author(s)
      Tada, R., R.W. Murray, C.A. Alvarez Zarikian, W.T. Anderson Jr., M.-A. Bassetti, B.J. Brace, S.C. Clemens,M.H. da Costa Gurgel, G.R. Dickens, A.G. Dunlea, S.J. Gallagher, L. Giosan, A.C.G. Henderson, A.E. Holbourn, K. Ikehara, T. Irino, T. Itaki, A. Karasuda, C.W. Kinsley, Y. Kubota, G.S. Lee, K.E. Lee, J. Lofi, et al.
    • Journal Title

      Proceedings of the Integrated Ocean Drilling Program

      Volume: 346

    • DOI

      10.2204/iodp.proc.346.101.2015

    • Related Report
      2015 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] Variations in East Asian summer monsoon in the last 400 ky deduced from results of Mg/Ca-sea surface temperature and oxygen isotope of IODP Site U14292017

    • Author(s)
      Kubota, Y., E. Wakisaka, S.C. Clemens, A. Holbourn, K-E. Lee, M. Ziegler, M., K. Horikawa, K. Kimoto
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Intermitted Occurrence of Millennial-scale Variability of East Asian Summer Monsoon before 1.45 Ma based on the High-resolution Br Record of the Japan Sea Sediments, Paleoclimate variability in the Indo-Pacific region2017

    • Author(s)
      Tada, R., A. Seki, M. Ikeda, T. Irino, K. Ikehara, A. Karasuda, S. Sugisaki, T. Sagawa, T. Itaki, Y. Kubota, M. Murayama, S. Lu, R. W. Murray, C. A Alvarez Zarikian and IODP Exp. 346 Scientists
    • Organizer
      American Geophysical Union fall meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 東シナ海北部サイトU1429の浮遊性有孔虫Mg/Caおよび酸素同位体比に基づく東シナ海の過去40万年の環境変動と東アジア夏季モンスーン2017

    • Author(s)
      久保田好美・脇坂恵津子,Steven Clemens, Ann Holbourn, Kyung Eun Lee, Martin Ziegler, 木元克典,堀川恵司
    • Organizer
      日本古生物学会 第166 回例会
    • Related Report
      2017 Annual Research Report 2016 Research-status Report
  • [Presentation] Variations in the East Asian Summer Monsoon during the Last 400 kyr Reconstructed Using Oxygen Isotope and Mg/Ca-Derived Sea Surface Temperatures at IODP Site U14292016

    • Author(s)
      Kubota Y, Wakisaka E, Clemens S, Holbourn A, Lee KE, Ziegler M, Kimoto K, Horikawa K.
    • Organizer
      Goldschmidt2016
    • Place of Presentation
      パシフィコ横浜(神奈川県・横浜市)
    • Year and Date
      2016-07-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] A 400 ky record of Mg/Ca-based sea surface temperature at East China Sea Site U14292016

    • Author(s)
      Kubota Y., E. Wakisaka, S. C. Clemens, A. Holbourn, K. Horikawa, K. Kimoto
    • Organizer
      Asian Monsoon IODP Expedition 346 2nd (Science) Postcruise Meeting
    • Place of Presentation
      Melbourne(Australia)
    • Year and Date
      2016-01-21
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] East China Sea δ18O Record Detects Millennial-Scale Changes in the East Asian Summer Monsoon2015

    • Author(s)
      Gleeman, E., S. Clemens, A. Lawman,Y. Kubota, A. Holbourn, A. Martin
    • Organizer
      AGU fall meeting
    • Place of Presentation
      San Francisco(USA)
    • Year and Date
      2015-12-12
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 東シナ海の高解像度水温復元に基づく海洋酸素同位体ステージ5での水温変動復元2015

    • Author(s)
      脇坂恵都子,久保田好美,堀川恵司,Ann Holbourn,Steve Clemens
    • Organizer
      地球環境史学会年会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-11-21
    • Related Report
      2015 Research-status Report
  • [Presentation] Variations in East Asian summer monsoon deduced from 400,000 year records of Mg/Ca sea surface temperature and Ba/Ca of IODP Expedition 346 Sites U1428 and U14292015

    • Author(s)
      Kubota, Y., E. Wakisaka, K. Horikawa, A. Holbourn, S. C. Clemens, K. Kimoto, R. Tada, R. W. Murray, C. A. Alvarez Zarikian, IODP Expedition 346 Scientists
    • Organizer
      INQUA2015
    • Place of Presentation
      名古屋国際会議場(愛知県名古屋市熱田区)
    • Year and Date
      2015-07-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 統合国際深海掘削計画(IODP)346次航海で採取された縁海海底堆積物の高精度年代決定2015

    • Author(s)
      佐川 拓也, 多田 隆治, 池原 研, 入野 智久, 板木 拓也, 杉崎 彩子, 久保田 好美, 烏田 明典, Chuang Xuan, 長橋 良隆, 里口 保文, 中川 毅, Murray Richard W., Alvarez-Zarikian Carlos A., Expedition 346 Scientists
    • Organizer
      日本地球惑星連合大会2015
    • Place of Presentation
      幕張メッセ(千葉県千葉市美浜区)
    • Year and Date
      2015-05-25
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2022-06-07  

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