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Developing a new ice microphysical parameterization for more accurate climate prediction

Research Project

Project/Area Number 19K14795
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 17020:Atmospheric and hydrospheric sciences-related
Research InstitutionOkayama University (2021-2022)
Kyushu University (2019-2020)

Principal Investigator

Michibata Takuro  岡山大学, 自然科学学域, 准教授 (30834395)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsエアロゾル・雲相互作用 / 全球気候モデル / 降水 / 放射強制力 / 微物理 / 気候モデル / 降水過程 / 氷晶 / 過冷却水滴
Outline of Research at the Start

本研究課題では、気候モデルにおける最大の不確実要素である雲・降水過程のモデリング手法の高度化を実施する。特に、全球水循環・放射収支に対して影響が大きい固体降水のモデリング手法、およびそれらの放射過程を重点的に改良する。具体的には、雲氷・降雪・雹・あられといった固体降水の粒子系をシームレスに表現する新しい雲・降水スキームを開発し、全球エアロゾル・気候モデルに実装する。素過程レベルでのモデルの精緻化を実施することにより、凝結生成物の水平・鉛直分布が現実大気と整合的であるよう改良を重ね、より信頼性の高い気候変動予測に資することを目標とする。

Outline of Final Research Achievements

We developed a new solid precipitation scheme for numerical climate models to improve the accuracy of climate prediction. The conventional scheme did not accurately represent the micro- and macro-structure of cloud ice and snow particles, as well as their complex interactions among particles, which was the major source of uncertainty in the hydrological and energy budget. To address this issue, a two-moment prognostic precipitation scheme was introduced in the MIROC GCM. The introduction of the new scheme enabled more realistic cloud cover distribution and radiative forcing. We also evaluated the impact of the new parameterization on climate sensitivity and cloud feedback at the fundamental mechanism level.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した新しい固体降水スキームを導入することで、雲氷・降雪粒子の微細な構造や形状、複雑な粒子間相互作用をより精緻に表現することが可能になった。現実的な雲量分布や降水の頻度・強度の改善が達成できたことで、将来の温暖化時にどのように雲が変化し、降水特性がどう変化するのかを適切にシミュレートすることが可能になると期待される。従来型モデルよりも高精度の温暖化予測が可能になった場合、適切な環境政策や温暖化対策に貢献することに加え、人間の健康リスクや水ストレス変化を適切に評価するなど、社会的にも多方面に波及効果のある研究成果として活用されると期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (37 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (23 results) (of which Int'l Joint Research: 13 results,  Invited: 6 results) Remarks (4 results)

  • [Journal Article] Too Frequent and Too Light Arctic Snowfall With Incorrect Precipitation Phase Partitioning in the MIROC6 GCM2022

    • Author(s)
      Imura Yuki, Michibata Takuro
    • Journal Title

      Journal of Advances in Modeling Earth Systems

      Volume: 14 Issue: 12

    • DOI

      10.1029/2022ms003046

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aerosol-Cloud Interactions in the Climate System2022

    • Author(s)
      Michibata Takuro
    • Journal Title

      Handbook of Air Quality and Climate Change. Springer, Singapore

      Volume: Chapter 35 Pages: 1-42

    • DOI

      10.1007/978-981-15-2527-8_35-3

    • ISBN
      9789811525278
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impacts of precipitation modeling on cloud feedback in MIROC62022

    • Author(s)
      Hirota, N., T. Michibata, H. Shiogama, T. Ogura, and K. Suzuki
    • Journal Title

      Geophysical Research Letters

      Volume: 49 Issue: 5

    • DOI

      10.1029/2021gl096523

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 数値気候モデルと衛星観測の複合利用によるエアロゾル・雲・降水相互作用に関する研究2021

    • Author(s)
      道端拓朗
    • Journal Title

      天気

      Volume: 68 Pages: 277-290

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reconciling Compensating Errors Between Precipitation Constraints and the Energy Budget in a Climate Model2020

    • Author(s)
      Michibata, T., and K. Suzuki
    • Journal Title

      Geophysical Research Letters

      Volume: 47 Issue: 12

    • DOI

      10.1029/2020gl088340

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Snow-induced buffering in aerosol?cloud interactions2020

    • Author(s)
      Michibata, T., K. Suzuki, and T. Takemura
    • Journal Title

      Atmospheric Chemistry and Physics

      Volume: 20 Issue: 22 Pages: 13771-13780

    • DOI

      10.5194/acp-20-13771-2020

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prognostic Precipitation in the MIROC6‐SPRINTARS GCM: Description and Evaluation Against Satellite Observations2019

    • Author(s)
      Michibata Takuro、Suzuki Kentaroh、Sekiguchi Miho、Takemura Toshihiko
    • Journal Title

      Journal of Advances in Modeling Earth Systems

      Volume: 11 Issue: 3 Pages: 839-860

    • DOI

      10.1029/2018ms001596

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Incorporation of inline warm rain diagnostics into the COSP2 satellite simulator for process-oriented model evaluation2019

    • Author(s)
      Michibata Takuro、Suzuki Kentaroh、Ogura Tomoo、Jing Xianwen
    • Journal Title

      Geoscientific Model Development

      Volume: 12 Issue: 10 Pages: 4297-4307

    • DOI

      10.5194/gmd-12-4297-2019

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Strengthened Indian Summer Monsoon Precipitation Susceptibility Linked to Dust‐Induced Ice Cloud Modification2019

    • Author(s)
      Patel Piyushkumar N.、Gautam Ritesh、Michibata Takuro、Gadhavi Harish
    • Journal Title

      Geophysical Research Letters

      Volume: 46 Issue: 14 Pages: 8431-8441

    • DOI

      10.1029/2018gl081634

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Key Role of Warm Rain Parameterization in Determining the Aerosol Indirect Effect in a Global Climate Model2019

    • Author(s)
      Jing Xianwen、Suzuki Kentaroh、Michibata Takuro
    • Journal Title

      Journal of Climate

      Volume: 32 Issue: 14 Pages: 4409-4430

    • DOI

      10.1175/jcli-d-18-0789.1

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Process representations of cloud and precipitation in MIROC6 with prognostic precipitation: Evaluation against A-Train observations2023

    • Author(s)
      Michibata, T., and K. Suzuki
    • Organizer
      ICCP-GSRA Workshop 2023 jointly with The 2nd EarthCARE Modeling Workshop, Shuzenji
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of Arctic snowfall in MIROC with satellite observation and its link to cloud radiative effect2023

    • Author(s)
      Imura, Y., T. Michibata, K. Suzuki
    • Organizer
      ICCP-GSRA Workshop 2023 jointly with The 2nd EarthCARE Modeling Workshop, Shuzenji
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] エアロゾル・雲の気候影響:数値モデリングと衛星観測2023

    • Author(s)
      道端拓朗
    • Organizer
      日本気象学会関西支部2022年度第3回中国地区例会, オンライン開催
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Impacts of precipitation modeling on cloud response to global warming in MIROC62022

    • Author(s)
      Hirota, N., T. Michibata, H. Shiogama, T. Ogura, and K. Suzuki
    • Organizer
      CFMIP Meeting, Seattle
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全球気候モデルMIROC6における北極域の雲・降水・放射相互作用の解析2022

    • Author(s)
      井村裕紀, 道端拓朗, 鈴木健太郎
    • Organizer
      日本気象学会秋季大会, 札幌
    • Related Report
      2022 Annual Research Report
  • [Presentation] MIROC6における降水過程精緻化による雲の温暖化応答への影響2022

    • Author(s)
      廣田渚郎, 道端拓朗, 塩竈秀夫, 小倉知夫, 鈴木健太郎
    • Organizer
      JpGU Meeting 2022, オンライン開催 (2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] MIROCにおける雲・降水プロセス高度化の雲フィードバックへの影響2022

    • Author(s)
      廣田渚郎, 道端拓朗, 塩竈秀夫, 小倉知夫, 鈴木健太郎
    • Organizer
      日本気象学会2022年度春季大会, オンライン開催 (2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Evaluation of cloud micro- and macrophysical properties in the MIROC6 with A-Train observations and COSP simulator2022

    • Author(s)
      Michibata, T., Y. Imura, H. Nakao, and K. Suzuki
    • Organizer
      EarthCARE Workshop 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 衛星シミュレータを用いた北極域の雲・降水過程の解析2022

    • Author(s)
      井村裕紀, 道端拓朗
    • Organizer
      エアロゾル・雲・降水の相互作用に関する研究集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 数値気候モデルMIROCに適用する新しい雲・降水パラメタリゼーションの開発2021

    • Author(s)
      道端拓朗
    • Organizer
      日本気象学会関西支部2021年度中国地区第3回例会
    • Related Report
      2021 Research-status Report
  • [Presentation] 全球気候モデルMIROC6における北極域の雲・降水過程の診断2021

    • Author(s)
      井村裕紀, 道端拓朗
    • Organizer
      日本気象学会関西支部2021年度中国地区第3回例会
    • Related Report
      2021 Research-status Report
  • [Presentation] How does the treatment of precipitation in a climate model improve the representation of aerosol-cloud interactions?2021

    • Author(s)
      Michibata, T., Y. Imura, H. Nakao, and K. Suzuki
    • Organizer
      Tri-MIPathlon-3 Workshop 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Revisiting an apples-to-apples comparison between model and observations using satellite simulator2021

    • Author(s)
      Michibata, T., and Y. Imura
    • Organizer
      CFMIP Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Challenges in constraining cloud and precipitation susceptibilities to aerosols: Satellite observations and global climate models2020

    • Author(s)
      Michibata, T., K. Suzuki, and T. Takemura
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 降水予報型MIROCにおける降水頻度・強度の改良2020

    • Author(s)
      道端拓朗, 鈴木健太郎
    • Organizer
      日本気象学会2020年度秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Constraining responses of cloud and precipitation to aerosol perturbations: Satellite observations and global climate models2020

    • Author(s)
      Michibata, T., K. Suzuki, and T. Takemura
    • Organizer
      100th AMS Annual Meeting 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Prognostic Precipitation in the MIROC6-SPRINTARS GCM: Improvements in Aerosol-Cloud-Precipitation Interactions2019

    • Author(s)
      Michibata, T., K. Suzuki, M. Sekiguchi, and T. Takemura
    • Organizer
      AGU Fall Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reconciling a compensating error between precipitation process constraint and energy budget requirement2019

    • Author(s)
      Michibata, T., K. Suzuki, and T. Takemura
    • Organizer
      Earth CARE Workshop 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prognostic precipitation in the MIROC6-SPRINTARS GCM: Improvements in precipitation and radiative properties2019

    • Author(s)
      Michibata, T., K. Suzuki, and T. Takemura
    • Organizer
      Aerosols, Clouds, Precipitation and Climate (ACPC) Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Process-based insight into precipitation susceptibility to aerosols in global models and satellite observations2019

    • Author(s)
      Suzuki, K., D. Goto, and T. Michibata
    • Organizer
      AGU Fall Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Significance of precipitation process in determining the aerosol indirect forcing2019

    • Author(s)
      Suzuki, K., T. Michibata, and X. Jing
    • Organizer
      CFMIP Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 日本気象学会2019年度山本賞 受賞記念講演2019

    • Author(s)
      道端拓朗
    • Organizer
      日本気象学会2019年度秋季大会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 降水予報型MIROCにおけるエアロゾル・雲・降水相互作用プロセスの誤差補償の緩和2019

    • Author(s)
      道端拓朗, 鈴木健太郎, 竹村俊彦
    • Organizer
      日本気象学会2019年度秋季大会
    • Related Report
      2019 Research-status Report
  • [Remarks] research map

    • URL

      https://researchmap.jp/Takuro_Michibata

    • Related Report
      2022 Annual Research Report
  • [Remarks] 研究室HP

    • URL

      https://www.okayama-u.ac.jp/user/comets/index.html

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/Takuro_Michibata

    • Related Report
      2021 Research-status Report 2020 Research-status Report
  • [Remarks] 九州大学研究者情報

    • URL

      https://hyoka.ofc.kyushu-u.ac.jp/search/details/K007065/

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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