Assessment on climate impacts of short-lived climate forcers by composition and region with hierarchical numerical models

• Project/Area Number: 19H05669
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Review Section: Broad Section K
• Research Institution: Kyushu University
• Principal Investigator: 竹村 俊彦 九州大学, 応用力学研究所, 教授 (90343326)
• Co-Investigator(Kenkyū-buntansha): 須藤 健悟 名古屋大学, 環境学研究科, 教授 (40371744) ; 鈴木 健太郎 東京大学, 大気海洋研究所, 准教授 (00396946) ; 五藤 大輔 国立研究開発法人国立環境研究所, 地域環境保全領域, 主任研究員 (80585068) ; 道端 拓朗 岡山大学, 自然科学学域, 准教授 (30834395)
• Project Period (FY): 2019-06-26 – 2024-03-31
• Project Status: Granted (Fiscal Year 2021)
• Budget Amount: ¥200,070,000 (Direct Cost: ¥153,900,000、Indirect Cost: ¥46,170,000); Fiscal Year 2021: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000); Fiscal Year 2020: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000); Fiscal Year 2019: ¥45,110,000 (Direct Cost: ¥34,700,000、Indirect Cost: ¥10,410,000)
• Keywords: 短寿命気候強制因子 / 気候モデル / 気候変動 / 大気汚染 / エアロゾル・雲・降水 / エアロゾル / 雲 / 降水 / 微量気体

Outline of Research at the Start

大気中のPM2.5などの微粒子（エアロゾル）や、光化学オキシダントであるオゾンなどの微量気体は、大気汚染物質であると同時に気候変動を引き起こす物質であり、短寿命気候強制因子と呼ばれる。それらの気温や降水量などへの影響について、自ら開発を進めてきた気候モデルを用いて、組成ごと・地域ごとに定量的に評価する。その際に、気候モデルにおいて不確実性の高いエアロゾルに依存する雲・降水過程の精緻化を図りつつ、近年顕在化している極端な気温や降水などの災害に対する短寿命気候強制因子の影響の定量的理解を目指す。

Outline of Annual Research Achievements

エアロゾル気候モデルMIROC-SPRINTARSを用いて、主要な短寿命気候強制因子（SLCFs）である硫酸塩エアロゾルの燃料消費起源の前駆気体SO2の排出量を全球一様の比率で増減させる感度実験を行った。その際のCO2濃度を、2000年レベルおよびその2倍の2パターンに設定した。その結果、同量の硫酸塩エアロゾル濃度の低下であっても、気温上昇はCO2濃度が高い状態の方が大きくなることを示した。これは、大気汚染対策を実施する場合、同時に温室効果ガス濃度の上昇を抑制しなければ、地球温暖化が加速度的に進行することを示している。この研究成果の論文公表に合わせてプレスリリースを行ったところ、関心が高く、計5紙に掲載されたほか、国際的な科学ニュースサイトでも紹介した。
硫酸塩エアロゾルのほか、ブラックカーボン（BC）の排出量を変化させる感度実験をMIROC-SPRINTARSを用いて行った。BCは大気の加熱によって降水量を大きく減少させることで、顕著な負の水循環感度を速い応答として生み出すのに対して、硫酸塩は主に地上気温の変化に連動する遅い応答として起こる水蒸気フィードバックの結果として、正の水循環感度を生み出すことがわかった。
NICAM-Chem全球14kmの雲解像モードにおいても、SO2およびBCの排出量を全球一様に変化させる感度実験を行い、従来の気候モデルでは解像できない雲に関わる SLCFsの気候応答を直接的に計算することの重要性を示唆する結果が得られた。
当初計画以上の研究成果を求めて、超高解像度エアロゾルモデルSCALE-SPRINTARSの開発に着手した。このモデルの水平分解能は、個々の雲の過程を扱える数十～数百mであり、超高分解能で大気エアロゾルの輸送過程を計算し、得られるエアロゾルの時空間分布とSCALEの大気放射過程および雲・降水過程との相互作用を表現できることになる。
研究代表者の竹村は7年連続で、研究分担者の須藤は2年連続でHighly Cited Researchersに選出された。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

2年度目であるにもかかわらず、研究代表者および研究分担者が筆頭著者の査読論文（SCIE雑誌掲載論文5編）を当初想定よりも多く発表することができた。これらの業績は、当初の計画どおり、気候モデルによるSLCFs排出量変化による気候変化の感度解析の予備実験、および雲・降水素過程のモデル精緻化を行ったところ、その過程において新たな発見があったことに起因する。硫酸塩エアロゾル濃度の低下に伴う気温上昇が同量の硫酸塩エアロゾル濃度の低下であっても、CO2濃度が高い状態の方が大きくなることを定量的に示した研究成果が新聞5紙に掲載されたことは、専門外を含めてインパクトのある研究成果であることを示唆している。また、従来まで診断変数として取り扱っていた降雨・降雪を陽に予報するスキームを開発して気候モデルへ実装し、降雨・降雪による大気放射の散乱・吸収の効果も組み込んだ研究は、これまでの気候モデルでは本質的に欠落していたプロセスを導入したことで、関連研究分野に強いインパクトがある。
超高分解能エアロゾルモデルSCALE-SPRINTARSの開発は、当初研究計画を遙かに超えるものである。計画立案時には、SCALEによるLES実験から得られる雲・降水過程に関する知見を活用することとしていた。しかし、優秀な博士研究員を採用することができたため、雲の力学・物理過程を直接的に詳細に扱うことが可能なモデルにエアロゾル関連過程を組み込み、雲・エアロゾル相互作用を一層本質的に表現できる数値モデル開発に取り組むこととした。開発の進捗は速く、エアロゾル輸送過程の組み込みはほぼ完了している。SCALE-SPRINTARSは、本研究課題後半で活用する予定であるほか、研究終了後には関連研究分野に公開することで、今後広く活用されることが見込まれる。

Strategy for Future Research Activity

研究期間前半で実施した、雲・降水過程を中心とした数値モデルの精緻化に関する研究成果、および感度解析の予備調査に伴う研究成果をふまえ、そして、新たに開発を進めている超高分解能エアロゾルモデルを利用して、研究期間後半では、当初の計画を発展させる形で研究を遂行する。エアロゾル気候モデルMIROC-SPRINTARS、化学気候モデルMIROC-CHASER、SLCFs結合雲解像モデルNICAM-Chem、そして超高分解能エアロゾルモデルSCALE-SPRINTARSを階層的に用いて、SLCFsの気候影響を定量化するために、組成別・地域別・燃料起源や森林火災起源などの起源別に、それぞれ現実的な範囲内で関連排出量を変動させる大規模な感度実験を実施する。また、新たに開発しているSCALE-SPRINTARSでは、水平空間分解能を1km程度に設定することを想定しており、SLCFsで特に着目すべき領域でのシミュレーションを行うことで、エアロゾル・雲・降水相互作用の詳細を解析する。ただし、このような超高分解能数値モデルで、ある程度広域的なエアロゾルによる気候変動を評価した前例がないため、期待するパフォーマンスを発揮できない可能性がある一方で、予想のつかない画期的な研究結果をもたらす可能性もある。
本研究課題の成果は、気候変動緩和へ向けた国際的な潮流が加速しつつある中で、政策や一般社会活動に資する科学的知見を提供するという観点でも活用していく。例えば、研究代表者の竹村は、Asia Pacific Clean Air Partnership (APCAP)のScience Panel Memberを務めており、アジア・太平洋各国の環境政策決定者と直接的な接点があるため、本研究課題の成果を積極的に提供していく予定である。また、SLCFsに関わる気候モデル相互比較プロジェクトと連携して、国際的な学術コミュニティーの発展および気候変動政策に関わる科学的知見の提供に寄与する。

Research Products

• [Int'l Joint Research] NASA Goddard Space Flight Center/Duke University/Geophysical Fluid Dynamics Laboratory(米国)
• [Int'l Joint Research] Met Norway/CICERO(ノルウェー)
• [Int'l Joint Research] Max-Planck-Institut fur Meteorologie/University of Leipzig(ドイツ)
• [Int'l Joint Research] University of Reading/University of Oxford(英国)
• [Int'l Joint Research] University Blaise Pascal(フランス)
• [Int'l Joint Research] NASA Goddard Space Flight Center/Duke University/Geophysical Fluid Dynamics Laboratory(米国)
• [Int'l Joint Research] Met Norway/CICERO(ノルウェー)
• [Int'l Joint Research] Max-Planck-Institut fur Meteorologie/University of Leipzig(ドイツ)
• [Int'l Joint Research] University of Reading/University of Oxford(英国)
• [Int'l Joint Research] University Blaise Pascal(フランス)
• [Int'l Joint Research]
• [Journal Article] AeroCom phase III multi-model evaluation of the aerosol life cycle and optical properties using ground- and space-based remote sensing as well as surface in situ observations (2021)
  • Author(s): Gliss, J., A. Mortier, M. Schulz, E. Andrews, Y. Balkanski, S. E. Bauer, A. M. K. Benedictow, H. Bian, R. Checa-Garcia, M. Chin, P. Ginoux, J. J. Griesfeller, A. Heckel, Z. Kipling, A. Kirkevag, H. Kokkola, P. Laj, P. L. Sager, M. T. Lund, C. L. Myhre, H. Matsui, G. Myhre, D. Neubauer, ..., T. Takemura, et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 21 Pages: 87-128
  • DOI: 10.5194/acp-21-87-2021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contributions of World Regions to the Global Tropospheric Ozone Burden Change From 1980 to 2010 (2021)
  • Author(s): Zhang, Y., J. J. West, L. K. Emmons, J. Flemming, J. E. Jonson, M. T. Lund, T. Sekiya, K. Sudo, A. Gaudel, K.-L. Chang, P. Nedelec, and V. Thouret
  • Journal Title: Geophysical Research Letters Volume: 48 Pages: 1-12
  • DOI: 10.1029/2020gl089184
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effective radiative forcing from emissions of reactive gases and aerosols - a multi-model comparison (2021)
  • Author(s): Thornhill, G. D., Collins, W. J., Kramer, R. J., Olivi?, D., Skeie, R. B., O'Connor, F. M., Abraham, N. L., Checa-Garcia, R., Bauer, S. E., Deushi, M., Emmons, L. K., Forster, P. M., Horowitz, L. W., Johnson, B., Keeble, J., Lamarque, J.-F., Michou, M., Mills, M. J., Mulcahy, J. P., Myhre, G., (略）, Oshima, N., et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 21 Pages: 853-874
  • DOI: 10.5194/acp-21-853-2021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Climate-driven chemistry and aerosol feedbacks in CMIP6 Earth system models (2021)
  • Author(s): Thornhill, G., W. Collins, D. Olivie, A. Archibald, S. Bauer, R. Checa-Garcia, S. Fiedler, G. Folberth, A. Gjermundsen, L. Horowitz, J.-F. Lamarque, M. Michou, J. Mulcahy, P. Nabat, V. Naik, F. M. O’Connor, F. Paulot, M. Schulz, C. E. Scott, R. Seferian, C. Smith, T. Takemura, S. Tilmes, and J. Weber
  • Journal Title: Atmospheric Chemistry and Physics Volume: 21 Pages: 1105-1126
  • DOI: 10.5194/acp-21-1105-2021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Climate Impact of Cloud Water Inhomogeneity through Microphysical Processes in a Global Climate Model (2020)
  • Author(s): Hotta Haruka、Suzuki Kentaroh、Goto Daisuke、Lebsock Matthew
  • Journal Title: Journal of Climate Volume: 33 Pages: 5195-5212
  • DOI: 10.1175/jcli-d-19-0772.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Reconciling Compensating Errors Between Precipitation Constraints and the Energy Budget in a Climate Model (2020)
  • Author(s): Michibata, T., and K. Suzuki
  • Journal Title: Geophysical Research Letters Volume: 47
  • DOI: 10.1029/2020gl088340
  • Peer Reviewed / Open Access
• [Journal Article] Fast responses on pre-industrial climate from present-day aerosols in a CMIP6 multi-model study (2020)
  • Author(s): Zanis, P., Akritidis, D., Georgoulias, A. K., Allen, R. J., Bauer, S. E., Boucher, O., Cole, J., Johnson, B., Deushi, M., Michou, M., Mulcahy, J., Nabat, P., Olivi?, D., Oshima, N., Sima, A., Schulz, M., Takemura, T., and Tsigaridis, K.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 8381-8404
  • DOI: 10.5194/acp-20-8381-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Cloudy-sky contributions to the direct aerosol effect (2020)
  • Author(s): Myhre, G., B. H. Samset, C. W. Mohr, K. Alterskjar, Y. Balkanski, N. Bellouin, M. Chin, J. Haywood, O. Hodnebrog, S. Kinne, G. Lin, M. T. Lund, J. E. Penner, M. Schulz, N. Schutgens, R. B. Skeie, P. Stier, T. Takemura, and K. Zhang
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 8855-8865
  • DOI: 10.5194/acp-20-8855-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A development of reduction scenarios of the short-lived climate pollutants (SLCPs) for mitigating global warming and environmental problems (2020)
  • Author(s): Nakajima, T., T. Ohara, T. Masui, T. Takemura, K. Yoshimura, D. Goto, T. Hanaoka, S. Itahashi, G. Kurata, J. Kurokawa, T. Maki, Y. Masutomi, M. Nakata, T. Nitta, X. Seposo, K. Sudo, C. Suzuki, K. Suzuki, H. Tsuruta, K. Ueda, S. Watanabe, Y. Yu, K. Yumimoto, and S. Zhao
  • Journal Title: Progress in Earth and Planetary Science Volume: 7 Pages: 1-24
  • DOI: 10.1186/s40645-020-00351-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Historical total ozone radiative forcing derived from CMIP6 simulations (2020)
  • Author(s): Skeie, R.B., Myhre, G., Hodnebrog, O., Deushi, M. et al.
  • Journal Title: npj Climate and Atmospheric Science Volume: 3 Pages: 32-32
  • DOI: 10.1038/s41612-020-00131-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Climate and air quality impacts due to mitigation of non-methane near-term climate forcers (2020)
  • Author(s): Allen, R. J., Turnock, S., Nabat, P., Neubauer, D., Lohmann, U., Olivi?, D., Oshima, N., Michou, M., Wu, T., Zhang, J., Takemura, T., Schulz, M., Tsigaridis, K., Bauer, S. E., Emmons, L., Horowitz, L., Naik, V., van Noije, T., Bergman, T., Lamarque, J.-F., Zanis, P., Tegen, I., Westervelt, D. M., Le Sager, P., et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 9641-9663
  • DOI: 10.5194/acp-20-9641-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Projecting ozone hole recovery using an ensemble of chemistry-climate models weighted by model performance and independence (2020)
  • Author(s): Amos, M., P. J. Young, J. S. Hosking, J.-F. Lamarque, N. L. Abraham, H. Akiyoshi, A. T. Archibald, S. Bekki, M. Deushi, P. Joeckel, D. Kinnison, O. Kirner, M. Kunze, M. Marchand, D. A. Plummer, D. Saint-Martin, K. Sudo, S. Tilmes, and Y. Yamashita
  • Journal Title: Atmos. Chem. Phys Volume: 20 Pages: 9961-9977
  • DOI: 10.5194/acp-20-9961-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Global aerosol simulations using NICAM.16 on a 14?km grid spacing for a climate study: improved and remaining issues relative to a lower-resolution model (2020)
  • Author(s): Goto Daisuke、Sato Yousuke、Yashiro Hisashi、Suzuki Kentaroh、Oikawa Eiji、Kudo Rei、Nagao Takashi M.、Nakajima Teruyuki
  • Journal Title: Geoscientific Model Development Volume: 13 Pages: 3731-3768
  • DOI: 10.5194/gmd-13-3731-2020
  • Peer Reviewed / Open Access
• [Journal Article] Updated tropospheric chemistry reanalysis and emission estimates, TCR-2, for 2005?2018 (2020)
  • Author(s): Miyazaki, K., K. Bowman, T. Sekiya, H. Eskes, F. Boersma, H. Worden, N. Livesey, V. H. Payne, K. Sudo, Y. Kanaya, M. Takigawa, and K. Ogochi
  • Journal Title: Earth System Science Data Volume: 12 Pages: 2223-2259
  • DOI: 10.5194/essd-12-2223-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Southern Hemisphere Midlatitude Circulation Response to Rapid Adjustments and Sea Surface Temperature Driven Feedbacks (2020)
  • Author(s): Wood, T., A. C. Maycock, P. M. Forster, T. B. Richardson, T. Andrews, O. Boucher, G. Myhre, B. H. Samset, A. Kirkevag, J.-F. Lamarque, J. Mulmenstadt, D. Olivie, T. Takemura, and D. Watson-Parris
  • Journal Title: Journal of Climate Volume: 33 Pages: 9673-9690
  • DOI: 10.1175/jcli-d-19-1015.1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Aerosol Effective Radiative Forcing in the Online Aerosol Coupled CAS-FGOALS-f3-L Climate Model (2020)
  • Author(s): Wang, H., T. Dai, M. Zhao, D. Goto, Q. Bao, T. Takemura, T. Nakajima, and G. Shi
  • Journal Title: Atmosphere Volume: 11
  • DOI: 10.3390/atmos11101115
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distinct responses of Asian summer monsoon to black carbon aerosols and greenhouse gases (2020)
  • Author(s): Xie, X., G. Myhre, X. Liu, X. Li, Z. Shi, H. Wang, A. Kirkevag, J.-F. Lamarque, D. Shindell, T. Takemura, and Y. Liu
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 11823-11839
  • DOI: 10.5194/acp-20-11823-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evaluation of climate model aerosol trends with ground-based observations over the last 2?decades ? an AeroCom and CMIP6 analysis (2020)
  • Author(s): Mortier, A., J. Gliss, M. Schulz, W. Aas, E. Andrews, H. Bian, M. Chin, P. Ginoux, J. Hand, B. Holben, Z. Hua, Z. Kipling, A. Kirkevag, P. Laj, T. Lurton, G. Myhre, D. Neubauer, D. Olivie, K. von Salzen, T. Takemura, and S. Tilmes
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 13355-13378
  • DOI: 10.5194/acp-20-13355-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] How aerosols and greenhouse gases influence the diurnal temperature range (2020)
  • Author(s): Stjern, C. W., B. H. Samset, O. Boucher, T. Iversen, J.-F. Lamarque, G. Myhre, D. Shindell, and T. Takemura
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 13467-13480
  • DOI: 10.5194/acp-20-13467-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The effect of rapid adjustments to halocarbons and N2O on radiative forcing (2020)
  • Author(s): Hodnebrog, O., G. Myhre, R. J. Kramer, K. P. Shine, T. Andrews, G. Faluvegi, M. Kasoar, A. Kirkevag, J.-F. Lamarque, J. Mulmenstadt, D. Olivie, B. H. Samset, D. Shindell, C. J. Smith, T. Takemura, and A. Voulgarakis
  • Journal Title: npj Climate and Atmospheric Science Volume: 3
  • DOI: 10.1038/s41612-020-00150-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Snow-induced buffering in aerosol?cloud interactions (2020)
  • Author(s): Michibata, T., K. Suzuki, and T. Takemura
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 13771-13780
  • DOI: 10.5194/acp-20-13771-2020
  • Peer Reviewed / Open Access
• [Journal Article] Global Bromine- and Iodine-Mediated Tropospheric Ozone Loss Estimated Using the CHASER Chemical Transport Model (2020)
  • Author(s): Sekiya, T., Y. Kanaya, K. Sudo, F. Taketani, Y. Iwamoto, M. N. Aita, A. Yamamoto, and K. Kawamoto
  • Journal Title: SOLA Volume: 16 Issue: 0 Pages: 220-227
  • DOI: 10.2151/sola.2020-037
  • ISSN: 1349-6476
  • Peer Reviewed / Open Access
• [Journal Article] Historical and future changes in air pollutants from CMIP6 models (2020)
  • Author(s): Turnock, S. T., Allen, R. J., Andrews, M., Bauer, S. E., Deushi, M., Emmons, L., Good, P., Horowitz, L., John, J. G., Michou, M., Nabat, P., Naik, V., Neubauer, D., O'Connor, F. M., Olivi?, D., Oshima, N., Schulz, M., Sellar, A., Shim, S., Takemura, T., Tilmes, S., Tsigaridis, K., Wu, T., and Zhang, J.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 14547-14579
  • DOI: 10.5194/acp-20-14547-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Return to different climate states by reducing sulphate aerosols under future CO2 concentrations (2020)
  • Author(s): Takemura, T.
  • Journal Title: Scientific Reports Volume: 10
  • DOI: 10.1038/s41598-020-78805-1
  • Peer Reviewed / Open Access
• [Journal Article] Understanding Hydrological Sensitivities Induced by Various Forcing Agents with a Climate Model (2020)
  • Author(s): Suzuki, K., and T. Takemura
  • Journal Title: SOLA Volume: 16 Issue: 0 Pages: 240-245
  • DOI: 10.2151/sola.2020-040
  • ISSN: 1349-6476
  • Peer Reviewed / Open Access
• [Journal Article] Simulating and Evaluating Global Aerosol Distributions With the Online Aerosol‐Coupled CAS‐FGOALS Model (2020)
  • Author(s): Wang, H., T. Dai, D. Goto, Q. Bao, B. He, Y. Liu, T. Takemura, T. Nakajima, and G.-Y. Shi
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 125
  • DOI: 10.1029/2019jd032097
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Bias in CMIP6 models as compared to observed regional dimming and brightening (2020)
  • Author(s): Moseid, K. O., M. Schulz, T. Storelvmo, I. R. Julsrud, D. Olivie, P. Nabat, M. Wild, J. N. S. Cole, and T. Takemura
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 16023-16040
  • DOI: 10.5194/acp-20-16023-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Surprising similarities in model and observational aerosol radiative forcing estimates (2020)
  • Author(s): Gryspeerdt, E., J. Mulmenstadt, A. Gettelman, F. F. Malavelle, H. Morrison, D. Neubauer, D. G. Partridge, P. Stier, T. Takemura, H. Wang, M Wang, and K. Zhang
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 613-623
  • DOI: 10.5194/acp-20-613-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evaluation of a multi-model, multi-constituent assimilation framework for tropospheric chemical reanalysis (2020)
  • Author(s): Miyazaki, K., Bowman, K. W., Yumimoto, K., Walker, T., and Sudo, K.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 931-967
  • DOI: 10.5194/acp-20-931-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Model Inter-Comparison for PM2.5 Components over urban Areas in Japan in the J-STREAM Framework (2020)
  • Author(s): Yamaji, K., S. Chatani, S. Itahashi, M. Saito, M. Takigawa, T. Morikawa, I. Kanda, Y. Miya, H. Komatsu, T. Sakurai, Y. Morino, K. Kitayama, T. Nagashima, H. Shimadera, K. Uranishi, Y. Fujiwara, T. Hashimoto, K. Sudo, T. Misaki, and H. Hayami
  • Journal Title: Atmosphere Volume: 11
  • DOI: 10.3390/atmos11030222
  • Peer Reviewed / Open Access
• [Journal Article] Incorporation of inline warm rain diagnostics into the COSP2 satellite simulator for process-oriented model evaluation (2019)
  • Author(s): Michibata Takuro、Suzuki Kentaroh、Ogura Tomoo、Jing Xianwen
  • Journal Title: Geoscientific Model Development Volume: 12 Pages: 4297-4307
  • DOI: 10.5194/gmd-12-4297-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Effect of global atmospheric aerosol emission change on PM2.5-related health impacts (2019)
  • Author(s): Seposo, X., K. Ueda, S. S. Park, K. Sudo, T. Takemura, and T. Nakajima
  • Journal Title: Global Health Action Volume: 12
  • DOI: 10.1080/16549716.2019.1664130
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Water vapour adjustments and responses differ between climate drivers (2019)
  • Author(s): Hodnebrog, O;., G. Myhre, B. H. Samset, K. Alterskjar, T. Andrews, O. Boucher, G. Faluvegi, D. Flaschner, P. M. Forster, M. Kasoar, A. Kirkevag, J.-F. Lamarque, D. Olivie, T. B. Richardson, D. Shawki, D. Shindell, K. P. Shine, P. Stier, T. Takemura, A. Voulgarakis, and D. Watson-Parris
  • Journal Title: Atmospheric Chemistry and Physics Volume: 19 Pages: 12887-12899
  • DOI: 10.5194/acp-19-12887-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Asian and Trans‐Pacific Dust: A Multimodel and Multiremote Sensing Observation Analysis (2019)
  • Author(s): Kim D., M. Chin, H. Yu, X. Pan, H. Bian, Q. Tan, R. A. Kahn, K. Tsigaridis, S. E. Bauer, T. Takemura, L. Pozzoli, N. Bellouin, and M. Schulz
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 124 Pages: 13534-13559
  • DOI: 10.1029/2019jd030822
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Efficacy of Climate Forcings in PDRMIP Models (2019)
  • Author(s): Richardson, T. B., P. M. Forster, C. J. Smith, A. C. Maycock, T. Wood, T. Andrews, O. Boucher, G. Faluvegi, D. Flaschner, O. Hodnebrog, M. Kasoar, A. Kirkevag, J.-F. Lamarque, J. Mulmenstadt, G. Myhre, D. Olivie, R. W. Portmann, B. H. Samset, D. Shawki, D. Shindell, P. Stier, T. Takemura, A. Voulgarakis, et al.
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 124 Pages: 12824-12844
  • DOI: 10.1029/2019jd030581
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative (2019)
  • Author(s): Lamy, K., M. Deushi, K. Yoshida et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 19 Pages: 10087-10110
  • DOI: 10.5194/acp-19-10087-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Strengthened Indian Summer Monsoon Precipitation Susceptibility Linked to Dust‐Induced Ice Cloud Modification (2019)
  • Author(s): Patel Piyushkumar N.、Gautam Ritesh、Michibata Takuro、Gadhavi Harish
  • Journal Title: Geophysical Research Letters Volume: 46 Pages: 8431-8441
  • DOI: 10.1029/2018gl081634
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Recent advances in satellite-based aerosol-cloud studies with implications for global modeling (2021)
  • Author(s): Suzuki, K.
  • Organizer: Current and Future Satellite Missions toward the Synergetic Understanding of Aerosol, Cloud and Precipitation
  • Int'l Joint Research / Invited
• [Presentation] 地球に存在する大気汚染物質を高解像度で計算可能なシミュレーションモデルの開発 (2021)
  • Author(s): 五藤大輔, 佐藤陽祐, 八代尚, 鈴木健太郎, 中島映至
  • Organizer: SATテクノロジー・ショーケース
• [Presentation] Lessons learned from emission fluctuation of greenhouse gases and air pollutants due to restrictions associated with the COVID-19 pandemic (2020)
  • Author(s): Takemura, T.
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research / Invited
• [Presentation] Significance of cloud and aerosol in Earth’s climate: Satellite observations and modeling (2020)
  • Author(s): Suzuki, K.
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research / Invited
• [Presentation] Challenges in constraining cloud and precipitation susceptibilities to aerosols: Satellite observations and global climate models (2020)
  • Author(s): Michibata, T., K. Suzuki, and T. Takemura
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research / Invited
• [Presentation] 大気エアロゾルによる気候変動の数値シミュレーション (2020)
  • Author(s): 竹村俊彦
  • Organizer: 日本流体力学会年会
  • Invited
• [Presentation] Linking microphysical processes to radiative forcing of warm clouds (2020)
  • Author(s): Suzuki, K., and T. Michibata
  • Organizer: Aerosol-Cloud-Precipitation-Climate Workshop
  • Int'l Joint Research
• [Presentation] Climate effects of aerosol-cloud interaction investigated by a global cloud-resolving model (2020)
  • Author(s): Hotta, H., and K. Suzuki
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research
• [Presentation] Dependency of surface air temperature change by sulfate aerosols on CO2 concentration (2020)
  • Author(s): Takemura, T.
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research
• [Presentation] Can a global chemistry climate model reproduce interannual variabilities and trends of depositions of sulfate, nitrate, and ammonium preserved in the Southeastern Greenland Dome ice core? (2020)
  • Author(s): Sudo, K., H. Shiratsuti, and Y. Iizuka
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research
• [Presentation] Development of size-resolving aerosol microphysics scheme for use in NICAM-SPRINTARS (2020)
  • Author(s): Cheng, C. T., and K. Suzuki
  • Organizer: AeroCom/AeroSAT Meeting
  • Int'l Joint Research
• [Presentation] Evaluation of cloud-aerosol interaction using the Cloud System Resolving Model NICAM-SPRINTARS and satellite observations (2020)
  • Author(s): Hotta, H., and K. Suzuki
  • Organizer: AeroCom/AeroSAT Meeting
  • Int'l Joint Research
• [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
• [Presentation] 雲システム解像モデルNICAM-SPRINTARSを用いた水雲-エアロゾル相互作用の全球的評価 (2020)
  • Author(s): 堀田陽香, 鈴木健太郎
  • Organizer: 日本気象学会2020年度秋季大会
• [Presentation] 北極域における無機イオン沈着の経年変動：化学気候モデル実験とグリーンランドSE-Dome氷床コアデータの比較 (2020)
  • Author(s): 須藤健悟, 白土日那子, 大西貴都, 飯塚芳徳
  • Organizer: 第25回大気化学討論会
• [Presentation] Constraining responses of cloud and precipitation to aerosol perturbations: Satellite observations and global climate models (2020)
  • Author(s): Michibata, T., K. Suzuki, and T. Takemura
  • Organizer: American Meteorological Society 100th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Aiding climate modeling of aerosols and clouds with satellite observations (2020)
  • Author(s): Suzuki, K.
  • Organizer: The Joint PI Meeting of JAXA Earth Observations Missions FY2019
  • Int'l Joint Research / Invited
• [Presentation] Microphysical signatures for warm clouds (2019)
  • Author(s): Suzuki, K.
  • Organizer: GEWEX Aerosol Precipitation Workshop
  • Int'l Joint Research / Invited
• [Presentation] Numerical simulation of air pollutants for analyzing climate change (2019)
  • Author(s): Takemura, T.
  • Organizer: Forum “Math-for-Industry”
  • Int'l Joint Research / Invited
• [Presentation] Development of size-resolving aerosol microphysics scheme for use in a global non-hydrostatic cloud-resolving model (2019)
  • Author(s): Cheng, C. T., and K. Suzuki
  • Organizer: The 2019 University Allied Workshop on Climate and Extreme Weather
  • Int'l Joint Research
• [Presentation] Difference in sensitivities to climate change between black carbon and sulfate aerosols (2019)
  • Author(s): Takemura, T., and K. Suzuki
  • Organizer: 18th AeroCom Workshop
  • Int'l Joint Research
• [Presentation] Significance of precipitation process in determining the aerosol indirect forcing (2019)
  • Author(s): Suzuki, K., T. Michibata, and X. Jing
  • Organizer: CFMIP Meeting 2019
  • Int'l Joint Research
• [Presentation] Toward better representation of aerosols and clouds in climate models: Current status and problems to be addressed (2019)
  • Author(s): Takemura, T.
  • Organizer: 8th International EarthCARE Science Workshop
  • Int'l Joint Research
• [Presentation] Differing impacts of absorbing and scattering aerosols on global energy budget: A climate modeling study (2019)
  • Author(s): Suzuki, K., T. Takemura, and S. Zhao
  • Organizer: 8th International EarthCARE Science Workshop
  • Int'l Joint Research
• [Presentation] Reconciling a compensating error between precipitation process constraint and energy budget requirement (2019)
  • Author(s): Michibata, T., K. Suzuki, and T. Takemura
  • Organizer: 8th International EarthCARE Science Workshop
  • Int'l Joint Research
• [Presentation] Global aerosol simulations with a cloud-system resolving model (2019)
  • Author(s): Goto, D.
  • Organizer: 8th International EarthCARE Science Workshop
  • Int'l Joint Research
• [Presentation] Process-based insight into precipitation susceptibility to aerosols in global models and satellite observations (2019)
  • Author(s): Suzuki, K., D. Goto, and T. Michibata
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] A modeling study on climate impact of cloud water horizontal inhomogeneity (2019)
  • Author(s): Hotta H., K. Suzuki, and D. Goto
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Prognostic precipitation in the MIROC6-SPRINTARS GCM: Improvements in aerosol-cloud-precipitation interactions (2019)
  • Author(s): Michibata, T., K. Suzuki, M. Sekiguchi, and T. Takemura
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [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
• [Presentation] Development of size-resolving aerosol microphysics scheme for use in NICAM-SPRINTARS (2019)
  • Author(s): Cheng, C. T., 鈴木健太郎
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] メタン削減による大気汚染・温暖化抑制効果の評価 (2019)
  • Author(s): 須藤健悟, 阿部学, D. Shindell
  • Organizer: 第24回大気化学討論会
• [Remarks] 科研費基盤S 階層的数値モデル群による短寿命気候強制因子の組成別・地域別定量的気候影響評価
  • URL: https://www.riam.kyushu-u.ac.jp/climate/KAKENHI_S/