Development of new cloud and precipitation growth scheme to be applied to the climate model

• Project/Area Number: 15K12190
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Kyushu University
• Principal Investigator: Takemura Toshihiko 九州大学, 応用力学研究所, 教授 (90343326)
• Research Collaborator: SUZUKI Kentaroh ; MICHIBATA Takuro
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 気候変動 / 気象学 / モデル化 / 雲 / エアロゾル

Outline of Final Research Achievements

In the numerical simulation to reproduce and predict climate change, there is a high uncertainty in an expression of the growing process from cloud to rain. We tested several parameterizations for the process under the common circumstances, and understood each behavior comparing it with the satellite data in detail. After that, we newly developed a method to explicitly calculate the spatiotemporal distribution of raindrops and drizzle (water droplets having sizes between cloud droplets and raindrops) that have not yet been introduced in most climate models. The research results were submitted as peer-reviewed articles in international journals, accepted and published.

Research Products

• [Journal Article] PDRMIP: A Precipitation Driver and Response Model Intercomparison Project, Protocol and preliminary results (2017)
  • Author(s): Myhre, G., P. Forster, B. Samset, O. Hodnebrog, J. Sillmann, T. Andrews, O. Boucher, G. Faluvegi, D. Flaeschner, T. Iversen, S. Kharin, M. Kasoar, A. Kirkevag, J.-F. Lamarque, D. J. L. Olivie, T. Richardson, D. Shindell, K. Shine, C. Stjern, T. Takemura, A. Voulgarakis, F. Zwiers, and S. G. Aalbergsjo
  • Journal Title: Bulletin of the American Meteorological Society Volume: 98 Issue: 6 Pages: 1185-1198
  • DOI: 10.1175/bams-d-16-0019.1
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The source of discrepancies in aerosol-cloud-precipitation interactions between GCM and A-Train retrievals (2016)
  • Author(s): Takuro Michibata, Kentaroh Suzuki, Yousuke Sato, and Toshihiko Takemura
  • Journal Title: Atmospheric Chemistry and Physics Volume: 16 Issue: 23 Pages: 15413-15424
  • DOI: 10.5194/acp-16-15413-2016
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Fast and slow precipitation responses to individual climate forcers: A PDRMIP multi-model study (2016)
  • Author(s): Samset, B. H., G. Myhre, P. M. Forster, O. Hodnebrog, T. Andrews, G. Faluvegi, D. Flaschner, M. Kasoar, V. Kharin, A. Kirkevag, J.-F. Lamarque, D. Olivie, T. Richardson, D. Shindell, K. P. Shine, T. Takemura, and A. Voulgarakis
  • Journal Title: Geophysical Research Letters Volume: 43 Issue: 6 Pages: 2782-2791
  • DOI: 10.1002/2016gl068064
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Challenges in constraining anthropogenic aerosol effects on cloud radiative forcing using present-day spatiotemporal variability (2016)
  • Author(s): Ghan, S., M. Wang, S. Zhang, S. Ferrachat, A. Gettelman, J. Griesfeller, Z. Kipling, U. Lohmann, H. Morrison, D. Neubauer, D. Partridge, P. Stier, T. Takemura, H. Wang, and K. Zhang
  • Journal Title: Proceedings of the National Academy of Sciences Volume: 113 Issue: 21 Pages: 5804-5811
  • DOI: 10.1073/pnas.1514036113
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Global and regional radiative forcing from 20% reductions in BC, OC and SO4 -- an HTAP2 multi-model study (2016)
  • Author(s): Stjern, C. W., B. H. Samset, G. Myhre, H. Bian, M. Chin, Y. Davila, F. Dentener, L. Emmons, J. Flemming, A. S. Haslerud, D. Henze, J. E. Jonson, T. Kucsera, M. T. Lund, M. Schulz, K. Sudo, T. Takemura, and S. Tilmes
  • Journal Title: Atmospheric Chemistry and Physics Volume: 16 Issue: 21 Pages: 13579-13599
  • DOI: 10.5194/acp-16-13579-2016
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] What controls the vertical distribution of aerosol? Relationships between process sensitivity in HadGEM3-UKCA and inter-model variation from AeroCom Phase II (2016)
  • Author(s): Kipling, Z., P. Stier, C. E. Johnson, G. W. Mann, N. Bellouin, S. E. Bauer, T. Bergman, M. Chin, T. Diehl, S. J. Ghan, T. Iversen, A. Kirkevag, H. Kokkola, X. Liu, G. Luo, T. van Noije, K. J. Pringle, K. von Salzen, M. Schulz, O. Seland, R. B. Skeie, T. Takemura, K. Tsigaridis, and K. Zhang
  • Journal Title: Atmospheric Chemistry and Physics Volume: 16 Issue: 4 Pages: 2221-2241
  • DOI: 10.5194/acp-16-2221-2016
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evaluation of autoconversion schemes in a single model framework with satellite observations (2015)
  • Author(s): Michibata, T., and T. Takemura
  • Journal Title: Journal of Geophysical Research Volume: 120 Issue: 18 Pages: 9570-9590
  • DOI: 10.1002/2015jd023818
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Climate responses of black carbon and sulfate aerosols assessed with coupled-ocean general circulation model (2016)
  • Author(s): Takemura, T., and K. Suzuki
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, CA (USA)
  • Year and Date: 2016-12-16
  • Int'l Joint Research
• [Presentation] The source of discrepancies in cloud and precipitation susceptibilities between GCMs and A-Train retrievals (2016)
  • Author(s): Michibata, T., K. Suzuki, Y. Sato, and T. Takemura
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, CA (USA)
  • Year and Date: 2016-12-16
  • Int'l Joint Research
• [Presentation] 大気海洋結合モデルを用いたエアロゾルによる放射収支変化と気温変化との関係性の検証 (2016)
  • Author(s): 竹村俊彦, 鈴木健太郎
  • Organizer: 日本気象学会2016年秋季大会
  • Place of Presentation: 名古屋大学東山キャンパス（愛知県名古屋市）
  • Year and Date: 2016-10-28
• [Presentation] Climate change and impacts due to aerosol effects in Asian region based on modeling studies (2016)
  • Author(s): Takemura, T., K. Sudo, K. Ueda, Y. Masutomi, K. Suzuki, and D. Goto
  • Organizer: 15th AeroCom Workshop
  • Place of Presentation: Beijing (China)
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] Evaluation and development of cloud microphsical conversion processes in the MIROC-SPRINTARS with A-Train observations (2016)
  • Author(s): Michibata, T., and T. Takemura
  • Organizer: 17th International Conference on Cloud and Precipitation
  • Place of Presentation: Manchester (UK)
  • Year and Date: 2016-07-26
  • Int'l Joint Research
• [Presentation] Mineral dust aerosols under the glacial period and anthropogenic global warming simulated by global models (2016)
  • Author(s): Takemura, T.
  • Organizer: Goldschmidt 2016
  • Place of Presentation: Yokohama (Japan)
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] Mineral dust aerosols under the glacial period and anthropogenic global warming simulated by global models (2016)
  • Author(s): Takemura, T.
  • Organizer: Goldschmidt2016
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] Integrated assessment of aerosol effects on atmospheric temperature and precipitation with global climate models (2016)
  • Author(s): Takemura, T.
  • Organizer: Yoram Kaufman Memorial Symposium
  • Place of Presentation: Greenbelt, MD (USA)
  • Year and Date: 2016-06-21
  • Int'l Joint Research
• [Presentation] Integrated assessment of aerosol effects on atmospheric temperature and precipitation with global climate models (2016)
  • Author(s): Takemura, T.
  • Organizer: 10th Anniversary Yoram Kaufman Memorial Symposium
  • Place of Presentation: Greenbelt, MD, USA
  • Year and Date: 2016-06-21
  • Int'l Joint Research
• [Presentation] エアロゾルによる気候変動 ― 数値モデルの開発と影響評価 (2016)
  • Author(s): 竹村俊彦
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県千葉市）
  • Year and Date: 2016-05-24
  • Invited
• [Presentation] Environmental assessment on aerosol effects in Asian region based on modeling studies (2016)
  • Author(s): Takemura, T., K. Sudo, K. Ueda, Y. Masutomi, S. Watanabe, M. Nakata, H. Takahashi, and D. Goto
  • Organizer: International Radiation Symposium 2016
  • Place of Presentation: Auckland (New Zealand)
  • Year and Date: 2016-04-20
  • Int'l Joint Research
• [Presentation] Environmental assessment on aerosol effects in Asian region based on modeling studies (2016)
  • Author(s): Takemura, T., K. Sudo, K. Ueda, Y. Masutomi, S. Watanabe, M. Nakata, H. Takahashi, and D. Goto
  • Organizer: International Radiation Symposium 2016
  • Place of Presentation: Auckland, New Zealand
  • Year and Date: 2016-04-20
  • Int'l Joint Research
• [Presentation] Resent application of SKYNET and AD-Net to aerosol climate models (2016)
  • Author(s): Takemura, T., H. Irie, T. Nishizawa, K. Aoki, R. Kudo, A. Higurashi, A. Shimizu, S. S. Park, and K. Yumimoto
  • Organizer: International SKYNET Workshop
  • Place of Presentation: Rome, Italy
  • Year and Date: 2016-03-03
  • Int'l Joint Research
• [Presentation] Assessment on climate response to aerosol effects based on a coupled atmosphere-ocean general circulation model (2016)
  • Author(s): Takemura, T.
  • Organizer: 2nd International Workshop on SLCPs in Asia
  • Place of Presentation: Incheon, Korea
  • Year and Date: 2016-02-18
  • Int'l Joint Research / Invited
• [Presentation] Integrated Assessment on Effects of Short-Lived Climate Pollutants (SLCPs) in Asia based on Numerical Models (2015)
  • Author(s): Takemura, T., K. Sudo, K. Ueda, Y. Masutomi, S. Watanabe, M. Nakata, H. Takahashi, and D. Goto
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2015-12-17
  • Int'l Joint Research
• [Presentation] Simulations under recent projects on aerosol model intercomparisons (2015)
  • Author(s): Takemura, T.
  • Organizer: Asian Conference on Meteorology
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2015-10-26
  • Int'l Joint Research
• [Presentation] A study of cloud-to-rain conversion processes for warm cloud over East Asia and the North Pacific from A-Train observations (2015)
  • Author(s): Michibata, T., and T. Takemura
  • Organizer: Asian Conference on Meteorology
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2015-10-26
  • Int'l Joint Research
• [Presentation] Integrated assessment on effects of short-lived climate pollutants (SLCPs) in Asia (2015)
  • Author(s): Takemura, T.
  • Organizer: 14th AeroCom Workshop
  • Place of Presentation: Frascati, Italy
  • Year and Date: 2015-10-05
  • Int'l Joint Research
• [Presentation] MIROC-SPRINTARSにおける暖かい雨の雲微物理スキームの評価 (2015)
  • Author(s): 道端拓朗, 竹村俊彦
  • Organizer: 日本気象学会2015年春季大会
  • Place of Presentation: つくば国際会議場（茨城県つくば市）
  • Year and Date: 2015-05-22
• [Remarks] SPRINTARSホームページ
  • URL: http://sprintars.net