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A study on spatial distribution of aerosol number concentration and its variability over East Asia

Research Project

Project/Area Number 22241002
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionThe University of Tokyo

Principal Investigator

TAKEGAWA Nobuyuki  東京大学, 先端科学技術研究センター, 准教授 (00324369)

Co-Investigator(Kenkyū-buntansha) MOTEKI Nobuhiro  東京大学, 先端科学技術研究センター, 助教 (20507818)
KOIKE Makoto  東京大学, 大学院・理学系研究科, 准教授 (00225343)
TAKAMI Akinori  独立行政法人国立環境研究所, 地域環境 研究センター, 室長 (00262030)
SAKURAI Hiromu  独立行政法人産業技術総合研究所, 計測標準研究部門, 研究員 (50392618)
Co-Investigator(Renkei-kenkyūsha) KONDO Yutaka  東京大学, 大学院・理学系研究科, 教授 (20110752)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥46,410,000 (Direct Cost: ¥35,700,000、Indirect Cost: ¥10,710,000)
Fiscal Year 2012: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000)
Fiscal Year 2010: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Keywordsエアロゾル / 数濃度 / 間接効果 / 東アジア / 航空機観測 / 環境分析 / 気候変動 / 大気現象 / アジア
Research Abstract

Aerosol particles act as cloud condensation nuclei and significantly affect the radiative balance of the atmosphere (indirect effect). Aerosol indirect effect is a major source of uncertainty in the projection of climate change. We need to quantify key factors affecting the distributions of aerosol number concentrations for better understanding of indirect effect. We have developed an airborne system for the fast measurement of aerosol number concentrations. We have conducted aircraft measurements over East Asia and revealed the vertical profiles of aerosol number concentrations. A three-dimensional model analysis has suggested the importance of new particle formation in determining the number concentrations in spring.

Report

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

    (22 results)

All 2012 2011 2010 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (15 results)

  • [Journal Article] Measurements of regional-scale aerosol impacts on cloud microphysics over the East China Sea: Possible influences of warm sea surface temperature over the Kuroshio ocean current2012

    • Author(s)
      Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
    • Journal Title

      J. Geophys. Res

      Volume: 117 Issue: D17

    • DOI

      10.1029/2011jd017324

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Size dependence of wet removal of black carbon aerosols during transport from the boundary layer to the free troposphere2012

    • Author(s)
      Moteki, N., Y. Kondo, N. Oshima, N.Takegawa, M. Koike, K. Kita, H. Matsui, and M. Kajino
    • Journal Title

      Geophys. Res. Lett

      Volume: 39 Issue: 13

    • DOI

      10.1029/2012gl052034

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Wet removal of black carbon in Asian outflow : Aerosol Radiative Forcing in East Asia (A-FORGE) aircraft campaign2012

    • Author(s)
      N.Oshima, Y.Kondo, N.Takegawa, M.Koike, H.Nakamura, 他6名
    • Journal Title

      Journal of Geophysical Research

      Volume: 117 Issue: D3

    • DOI

      10.1029/2011jd016552

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laboratory evaluation of a TSIcondensation particle counter (model3771) under airborne measurement conditions2011

    • Author(s)
      Takegawa, N. and H. Sakurai
    • Journal Title

      Aerosol Sci. Technol

      Volume: 45 Pages: 272-283

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Impact of new particle formation on the concentrations of aerosol number and cloud condensation nuclei around Beijing2011

    • Author(s)
      Matsui, H, M. Koike, Y. Kondo, N. Takegawa, A. Wiedensohler, J. D. Fast, and R. A. Zaveri
    • Journal Title

      J. Geophys. Res

      Volume: 116 Issue: D19 Pages: 19208-19208

    • DOI

      10.1029/2011jd016025

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laboratory Evaluation of a TSI Condensation Particle Counter(Model 3771) Under Airborne Measurement Conditions2011

    • Author(s)
      Takegawa, N, Sakurai, H.
    • Journal Title

      Aerosol Science and Technology

      Volume: 45 Pages: 272-283

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Condensation particle counters combined with alow-pressure impactor for fast measurement of mode-segregated aerosol number concentration

    • Author(s)
      Takegawa, N., N. Moteki, M. Koike, N.Oshima, and Y. Kondo
    • Journal Title

      Aerosol Sci. Technol

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Presentation] Measurements of Regional-Scale Aerosol Impacts on Cloud Microphysics over the East China Sea: Possible Influences of Warm Sea Surface Temperature over the Kuroshio Ocean Current2012

    • Author(s)
      Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
    • Organizer
      16th International Conference on Clouds and Precipitation, Leipzig
    • Place of Presentation
      Germany
    • Year and Date
      2012-08-01
    • Related Report
      2012 Final Research Report
  • [Presentation] Observations of Regional-Scale Impacts on Cloud Microphysics from AnthropogenicAerosols and Warm Sea SurfaceTemperature over the East China Sea12th IGAC Conference2012

    • Author(s)
      Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
    • Place of Presentation
      Beijing, China
    • Related Report
      2012 Final Research Report
  • [Presentation] Measurements of Regional-Scale Aerosol Impacts on Cloud Microphysics over the East China Sea: Possible Influences of Warm Sea Surface Temperature over the Kuroshio Ocean Current2012

    • Author(s)
      Koike, M., N. Takegawa, N. Moteki, Y. Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
    • Organizer
      16th International Conference on Clouds and Precipitation
    • Place of Presentation
      Leipzig, Germany
    • Related Report
      2012 Annual Research Report
  • [Presentation] Observations of Regional-Scale Impacts on Cloud Microphysics from Anthropogenic Aerosols and Warm Sea Surface Temperature over the East China Sea2012

    • Author(s)
      Koike, M., N. Takegawa, N. Moteki, Y. Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
    • Organizer
      12th IGAC Conference
    • Place of Presentation
      Beijing, China
    • Related Report
      2012 Annual Research Report
  • [Presentation] 領域モデルを用いた春季東アジア域におけるブラックカーボンの上方輸送過程2011

    • Author(s)
      大島長, 小池真, 近藤豊, 茂木信宏, 中村尚, 竹川暢之, 北和之
    • Organizer
      第17回大気化学討論会
    • Place of Presentation
      京都大学宇治 キャンパス, 京都
    • Year and Date
      2011-10-19
    • Related Report
      2012 Final Research Report
  • [Presentation] 領域モデルを用いた春季東アジア域におけるブラックカーボンの上方輸送過程2011

    • Author(s)
      大島長, 小池真, 竹川暢之, 他
    • Organizer
      第17回大気化学討論会
    • Place of Presentation
      京都大学宇治キャンパス(京都府)
    • Year and Date
      2011-10-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Evidence of Regional-scale Aerosol Impacts on Cloud Microphysics over the East China Sea2011

    • Author(s)
      Koike, M., N.Takegawa, 他
    • Organizer
      2011 IUGG General Assembly
    • Place of Presentation
      Melbourne Convention & Exhibition Centre(オーストラリア)
    • Year and Date
      2011-07-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] 新粒子生成のエアロゾル数濃度 および雲凝結核濃度への影響:北京域に おける数値モデル計算2011

    • Author(s)
      松井仁志 , 小池真 , 近藤豊 ,竹川暢之
    • Organizer
      日本地球惑星科学連合大会2011年大会
    • Place of Presentation
      幕張メッセ,千葉
    • Year and Date
      2011-05-23
    • Related Report
      2012 Final Research Report
  • [Presentation] 新粒子生成のエアロゾル数濃度および雲凝結核濃度への影響:北京域における数値モデル計算2011

    • Author(s)
      松井仁志, 小池真, 近藤豊, 竹川暢之
    • Organizer
      日本地球惑星科学連合2011年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2011-05-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] 航空機観測による海上でのBC沈着速度の推定2011

    • Author(s)
      矢野雅大, 竹川暢之, 小池真, 他
    • Organizer
      日本地球惑星科学連合2011年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2011-05-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] 北京周辺域における新粒子生成のエアロゾル数濃度および雲凝結核濃度への影響2011

    • Author(s)
      松井仁志, 小池真, 近藤豊, 竹川暢之
    • Organizer
      日本気象学会2011年度春季大会
    • Place of Presentation
      代々木オリンピックセンター(東京)
    • Year and Date
      2011-05-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] 東シナ海における人為エアロゾルの雲微物理特性への影響2010

    • Author(s)
      小池真、竹川暢之, 他
    • Organizer
      第16回大気化学討論会
    • Place of Presentation
      首都大学東京、東京都八王子市
    • Year and Date
      2010-11-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] エアロゾルと雲:分子科学 と地球科学の接点2010

    • Author(s)
      竹川暢之
    • Organizer
      第4回分子科学会シンポジウム
    • Place of Presentation
      東京大学,東京
    • Year and Date
      2010-07-10
    • Related Report
      2012 Final Research Report
  • [Presentation] エアロゾルと雲:分子科学と地球科学の接点2010

    • Author(s)
      竹川暢之
    • Organizer
      第4回分子科学会シンポジウム
    • Place of Presentation
      東京大学、東京都目黒区(招待講演)
    • Year and Date
      2010-07-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] 東シナ海・黄海上の自由対流圏中で観測されたブラックカーボンの上方輸送過程2010

    • Author(s)
      大島長、竹川暢之, 他
    • Organizer
      日本気象学会2010年度春季大会
    • Place of Presentation
      国立オリンピック記念青少年総合センター、東京都渋谷区
    • Year and Date
      2010-05-25
    • Related Report
      2010 Annual Research Report

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Published: 2010-11-30   Modified: 2019-07-29  

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