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Sulfur and nitrogen isotopes in a single particle of sulfate and nitrate aerosols in polar ice cores

Research Project

Project/Area Number 16K12573
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Research InstitutionHokkaido University

Principal Investigator

Iizuka Yoshinori  北海道大学, 低温科学研究所, 助教 (40370043)

Research Collaborator Uemura Ryu  
Sano Yuji  
Kagoshima Shogo  
Ando Takuto  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsエアロゾル / 同位体比 / アイスコア / 個別粒子 / 塩微粒子 / 硫黄同位体比 / 窒素同位体比 / 環境変動 / 環境分析 / 極地 / 地球化学
Outline of Final Research Achievements

In order to measure sulfur and nitrogen isotopes in a single particle of sulfate and nitrate aerosols in polar ice cores, we collected particles on a mesh from ice cores. Then, we measured sulfur isotopes of the single particles. As a result, the average isotope values are about 22 ‰, which is reasonable result for natural sulfate aerosols, however with large error of about 10 ‰.

Academic Significance and Societal Importance of the Research Achievements

エアロゾルは小さな個体粒子(もしくは液滴)からなり、地球表面気温に影響を与える。アイスコアには過去のエアロゾルが保存されている。エアロゾルの同位体比を分析することでエアロゾルの起源を推定できるが、これまで粒子一粒ごとの同位体比の分析は困難であった。本研究はナノシムスという装置をアイスコアに含まれる過去のエアロゾルに適用し、硫酸塩エアロゾルの粒子一粒ごとの硫黄同位体比の分析に成功した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] A 60-year record of atmospheric aerosol depositions preserved in a high-accumulation dome ice core, southeast Greenland2018

    • Author(s)
      Iizuka, Y., R. Uemura, K. Fujita, S. Hattori, O. Seki, C. Miyamoto, T. Suzuki, N. Yoshida, H. Motoyama and Sumito Matoba
    • Journal Title

      Journal of Geophysical Research:Atmosphere

      Volume: 123 Issue: 1 Pages: 574-589

    • DOI

      10.1002/2017jd026733

    • NAID

      120006486796

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seasonal-scale dating of a shallow ice core from Greenland using oxygen isotope matching between data and simulation.2017

    • Author(s)
      Ryoto Furukawa, Ryu Uemura, Koji Fujita, Jesper Sjolte, Kei Yoshimura, Sumito Matoba, and Yoshinori Iizuka
    • Journal Title

      Journal of Geophysical Research: Atmospheres

      Volume: 122 Issue: 20 Pages: 10873-10887

    • DOI

      10.1002/2017jd026716

    • NAID

      120006466468

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A firn densification process in the high accumulation dome of southeastern Greenland2017

    • Author(s)
      Yoshinori Iizuka, Atsushi Miyamoto, Akira Hori, Sumito Matoba, Ryoto Furukawa, Takeshi Saito, Shuji Fujita, Motohiro Hirabayashi, Satoru Yamaguchi, Koji Fujita, Nozomu Takeuchi
    • Journal Title

      Arctic, Antarctic, and Alpine Research

      Volume: 49 Pages: 13-27

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] グリーンランド南東部、高涵養量ドームにおける浅層アイスコアプロ ジェクトの概要と研究成果2018

    • Author(s)
      飯塚 芳徳、的場 澄人、ほか
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Aerosols Preserved in a High-accumulation Dome Ice Core, Southeast Greenland2018

    • Author(s)
      Iizuka, Y., R. Uemura, K. Fujita, S. Matoba
    • Organizer
      Polar2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of insoluble particles in the ice core from south-east dome Greenland2018

    • Author(s)
      Tomomi Amino, T., Y. Iizuka, K. Fujita, N. Oshima and S. Matoba
    • Organizer
      AGU fall meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nitrogen isotope of nitrate in Arctic ice core records past anthropogenic energy shift2018

    • Author(s)
      Hattori, S., A. Tsuruta, Y. Iizuka, K. Fujita, R. Uemura, S. Matoba, N. Yoshida
    • Organizer
      International Global Atmospheric Chemistry (IGAC)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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