Intense investigation of the oxidation capacity of global atmosphere and its changes

• Project/Area Number: 16H02937
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Nagoya University
• Principal Investigator: Sudo Kengo 名古屋大学, 環境学研究科, 准教授 (40371744)
• Co-Investigator(Kenkyū-buntansha): 増永 浩彦 名古屋大学, 宇宙地球環境研究所, 准教授 (00444422)
• Research Collaborator: MIYAZAKI Kazuyuki ; ITO Akihiko
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2018: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2017: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2016: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: 大気酸化能 / OHラジカル / 化学気候モデル / 化学輸送モデル / メタン / 対流圏オゾン / 光解離定数 / 物質循環 / 全球雲分布 / 化学気候モデリング

Outline of Final Research Achievements

This study improves the estimate of global distributions of hydroxy radical (OH) which controls oxidation and removal processes of various compounds in the atmosphere, and evaluates the recent change in the atmospheric oxidation capacity and its controlling mechanism. The estimate of OH distributions is improved by validating and elaborating the calculations of clouds, aerosols, and stratospheric ozone with combining a chemistry climate model simulation with the observational data as from satellite measurements. This study further investigates contributions of individual controlling factors of OH changes such as anthropogenic and natural emissions of nitrogen oxides (NOx), carbon monoxide (CO), volatile organic compounds (VOCs), in addition to the distributions of clouds, water vapor (H2O), and ozone.

Academic Significance and Societal Importance of the Research Achievements

本研究は、メタンをはじめ大気中の様々な物質の除去を担うOHラジカルの全球分布の推定を高精度化し、OH変動要因の定量的検討も行った。このような成果は、気候変動や大気環境変動の正確な予測・評価に大きく寄与し、今後の温室効果気体等の排出量削減シナリオの策定にも貢献が大である。また、次期IPCC報告書に向けたモデル間相互比較プロジェクトであるCMIP6、CCMI、およびAeroChem-MIPにも、本科研費課題の化学気候モデルを用いて参加しており、大気汚染が与える気候影響の理解の高精度化に寄与し、気候政策の策定にも大きく貢献する予定である。

Research Products

• [Int'l Joint Research] University of Leeds(英国)
• [Int'l Joint Research] MIT/NCAR/NASA Goddard Space Flight Center(米国)
• [Int'l Joint Research] Environment and Climate Change Canada/CCCMA, University of Victoria(カナダ)
• [Int'l Joint Research] NIWA/Bodeker Scientific(ニュージーランド)
• [Int'l Joint Research] University of Melbourne/University of New South Wales(オーストラリア)
• [Int'l Joint Research]
• [Int'l Joint Research] KNMI(オランダ)
• [Int'l Joint Research] NASA(米国)
• [Journal Article] Quasi-Biennial Oscillations in Atmospheric Ozone from the Chemistry-Climate Model and Ozone Reanalysis (2019)
  • Author(s): Madhu Vazhathottathil、Sudo Kengo
  • Journal Title: American Journal of Climate Change Volume: 08 Issue: 01 Pages: 110-136
  • DOI: 10.4236/ajcc.2019.81007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A new method (M<sup>3</sup>Fusion v1) for combining observations and multiple model output for an improved estimate of the global surface ozone distribution (2019)
  • Author(s): Chang Kai-Lan、Cooper Owen R.、West J. Jason、Serre Marc L.、Schultz Martin G.、Lin Meiyun、Mar?cal Virginie、Josse B?atrice、Deushi Makoto、Sudo Kengo、Liu Junhua、Keller Christoph A.
  • Journal Title: Geoscientific Model Development Volume: 12 Issue: 3 Pages: 955-978
  • DOI: 10.5194/gmd-12-955-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Balance of Emission and Dynamical Controls on Ozone During the Korea-United States Air Quality Campaign From Multiconstituent Satellite Data Assimilation (2019)
  • Author(s): Miyazaki K.、Sekiya T.、Fu D.、Bowman K. W.、Kulawik S. S.、Sudo K.、Walker T.、Kanaya Y.、Takigawa M.、Ogochi K.、Eskes H.、Boersma K. F.、Thompson A. M.、Gaubert B.、Barre J.、Emmons L. K.
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 124 Issue: 1 Pages: 387-413
  • DOI: 10.1029/2018jd028912
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ozone sensitivity to varying greenhouse gases and ozone-depleting substances in CCMI-1 simulations (2018)
  • Author(s): Morgenstern O.、Stone K. A.、Schofield R.、Akiyoshi H.、Yamashita Y.、Kinnison D. E.、Garcia R. R.、Sudo K.、Plummer D. A.、Scinocca J.、Oman L. D.、Manyin M. E.、Zeng G.、Rozanov E.、Stenke A.、Revell L. E.、Pitari G.、Mancini E.、Di Genova G.、Visioni D.、Dhomse S. S.、Chipperfield M. P.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 2 Pages: 1091-1114
  • DOI: 10.5194/acp-18-1091-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Extremal dependence between temperature and ozone over the continental US (2018)
  • Author(s): Phalitnonkiat Pakawat、Hess Peter G. M.、Grigoriu Mircea D.、Samorodnitsky Gennady、Sun Wenxiu、Beaudry Ellie、Tilmes Simone、Deushi Makato、Josse Beatrice、Plummer David、Sudo Kengo
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 16 Pages: 11927-11948
  • DOI: 10.5194/acp-18-11927-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Two-scale multi-model ensemble: is a hybrid ensemble of opportunity telling us more? (2018)
  • Author(s): Galmarini Stefano、Kioutsioukis Ioannis、Solazzo Efisio、Alyuz Ummugulsum、Balzarini Alessandra、Bellasio Roberto、Benedictow Anna M. K.、Bianconi Roberto、Bieser Johannes、Brandt Joergen、Christensen Jesper H.、Colette Augustin、Curci Gabriele、Davila Yanko、Dong Xinyi、Sudo Kengo、et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 12 Pages: 8727-8744
  • DOI: 10.5194/acp-18-8727-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ultraviolet Radiation modelling using output from the ChemistryClimate Model Initiative (2018)
  • Author(s): Lamy K?vin、Sudo Kengo、Tanaka Taichu Y.、Visioni Daniele、Yoshida Kohei
  • Journal Title: Atmospheric Chemistry and Physics Discussions Volume: 18 Pages: 1-34
  • DOI: 10.5194/acp-2018-525
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The effects of intercontinental emission sources on European air pollution levels (2018)
  • Author(s): Jonson Jan Eiof、Schulz Michael、Emmons Louisa、Flemming Johannes、Henze Daven、Sudo Kengo、Tronstad Lund Marianne、Lin Meiyun、Benedictow Anna、Koffi Brigitte、Dentener Frank、Keating Terry、Kivi Rigel、Davila Yanko
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 18 Pages: 13655-13672
  • DOI: 10.5194/acp-18-13655-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multi-model study of HTAP?II on sulfur and nitrogen deposition (2018)
  • Author(s): Tan Jiani、Fu Joshua S.、Dentener Frank、Sun Jian、Emmons Louisa、Tilmes Simone、Sudo Kengo、Flemming Johannes、Jonson Jan Eiof、Gravel Sylvie、Bian Huisheng、Davila Yanko、Henze Daven K.、Lund Marianne T.、Kucsera Tom、Takemura Toshihiko、Keating Terry
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 9 Pages: 6847-6866
  • DOI: 10.5194/acp-18-6847-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] HTAP2 multi-model estimates of premature human mortality due to intercontinental transport of air pollution and emission sectors (2018)
  • Author(s): Liang Ciao-Kai、West J. Jason、Silva Raquel A.、Bian Huisheng、Chin Mian、Davila Yanko、Dentener Frank J.、Emmons Louisa、Flemming Johannes、Folberth Gerd、Henze Daven、Sudo Kengo、et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 14 Pages: 10497-10520
  • DOI: 10.5194/acp-18-10497-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Estimates of ozone return dates from Chemistry-Climate Model Initiative simulations (2018)
  • Author(s): Dhomse Sandip S.、Kinnison Douglas、Chipperfield Martyn P.、Salawitch Ross J.、Cionni Irene、Hegglin Michaela I.、Abraham N. Luke、Akiyoshi Hideharu、Archibald Alex T.、Bednarz Ewa M.、Bekki Slimane、Sudo Kengo、Tilmes Simone、Visioni Daniele、Yamashita Yousuke、Zeng Guang, et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 11 Pages: 8409-8438
  • DOI: 10.5194/acp-18-8409-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-range transport impacts on surface aerosol concentrations and the contributions to haze events in China: an HTAP2 multi-model study (2018)
  • Author(s): Dong Xinyi、Fu Joshua S.、Zhu Qingzhao、Sun Jian、Tan Jiani、Keating Terry、Sekiya Takashi、Sudo Kengo、Emmons Louisa、Tilmes Simone、Jonson Jan Eiof、Schulz Michael、Bian Huisheng、Chin Mian、Davila Yanko、Henze Daven、Takemura Toshihiko、Benedictow Anna Maria Katarina、Huang Kan
  • Journal Title: Atmospheric Chemistry and Physics Volume: 18 Issue: 21 Pages: 15581-15600
  • DOI: 10.5194/acp-18-15581-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Review of the global models used within phase 1 of the Chemistry-Climate Model Initiative (CCMI) (2017)
  • Author(s): Morgenstern, O, M. I. Hegglin, E. Rozanov, F. M. O’Connor, N. L. Abraham, H. Akiyoshi, A. T. Archibald, S. Bekki, N. Butchart, M. P. Chipperfield et al.
  • Journal Title: Geosci. Model Dev. Volume: 10 Issue: 2 Pages: 639-671
  • DOI: 10.5194/gmd-10-639-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Investigation of global particulate nitrate from the AeroCom phase-III experiment (2017)
  • Author(s): Bian Huisheng、Chin Mian、Hauglustaine Didier A.、Schulz Michael、Myhre Gunnar、Bauer Susanne E.、Lund Marianne T.、Karydis Vlassis A.、Kucsera Tom L.、Pan Xiaohua、Pozzer Andrea、Skeie Ragnhild B.、Steenrod Stephen D.、Sudo Kengo、Tsigaridis Kostas、Tsimpidi Alexandra P.、Tsyro Svetlana G.
  • Journal Title: Atmos. Chem. Phys. Volume: 17 Issue: 21 Pages: 12911-12940
  • DOI: 10.5194/acp-17-12911-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Formaldehyde in the Tropical Western Pacific: Chemical Sources and Sinks, Convective Transport, and Representation in CAM-Chem and the CCMI Models (2017)
  • Author(s): Anderson Daniel C.、Nicely Julie M.、Wolfe Glenn M.、Hanisco Thomas F.、Kengo Sudo、et al.
  • Journal Title: J. Geophs. Res.-Atmos. Volume: 122 Issue: 20
  • DOI: 10.1002/2016jd026121
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Corrigendum: Future global mortality from changes in air pollution attributable to climate change (2017)
  • Author(s): Silva Raquel A.、West J. Jason、Lamarque Jean-Fran?ois、Shindell Drew T.、Kengo Sudo、et al.
  • Journal Title: Nat. Clim. Change Volume: 7 Issue: 11 Pages: 845-845
  • DOI: 10.1038/nclimate3427
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Long-term change in the source contribution to surface ozone over Japan (2017)
  • Author(s): Nagashima Tatsuya、Sudo Kengo、Akimoto Hajime、Kurokawa Junichi、Ohara Toshimasa
  • Journal Title: Atmos. Chem. Phys. Volume: 17 Issue: 13 Pages: 8231-8246
  • DOI: 10.5194/acp-17-8231-2017
  • Peer Reviewed / Open Access
• [Journal Article] Impact of intercontinental pollution transport on North American ozone air pollution: an HTAP phase 2 multi-model study (2017)
  • Author(s): Huang Min、Carmichael Gregory R.、Pierce R. Bradley、Jo Duseong S.、Park Rokjin J.、Flemming Johannes、Emmons Louisa K.、Bowman Kevin W.、Henze Daven K.、Davila Yanko、Sudo Kengo、Jonson Jan Eiof、Tronstad Lund Marianne、Janssens-Maenhout Greet、Dentener Frank J.、Keating Terry J.、Oetjen Hilke、Payne Vivienne H.
  • Journal Title: Atmos. Chem. Phys. Volume: 17 Issue: 9 Pages: 5721-5750
  • DOI: 10.5194/acp-17-5721-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 化学気候モデルで探る大気微量成分の全球変動 (2017)
  • Author(s): 須藤健悟
  • Journal Title: 大気化学研究 Volume: 36
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Decadal changes in global surface NOx emissions from multi-constituent satellite data assimilation (2017)
  • Author(s): Miyazaki, K., Eskes, H., Sudo, K., Boersma, K. F., Bowman, K., and Kanaya, Y
  • Journal Title: Atmos. Chem. Phys Volume: 17 Issue: 2 Pages: 807-837
  • DOI: 10.5194/acp-17-807-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evolution of stratospheric sulfate aerosol from the 1991 Pinatubo eruption: Roles of aerosol microphysical processes (2016)
  • Author(s): T. Sekiya, K. Sudo
  • Journal Title: J. Geophys. Res. Atmos. Volume: 121 Issue: 6 Pages: 2911-2938
  • DOI: 10.1002/2015jd024313
  • Peer Reviewed
• [Presentation] 微量気体SLCPsの長期変動と気候影響 (2018)
  • Author(s): 須藤健悟, 長谷川晃一, 竹村俊彦
  • Organizer: 日本気象学会2018年秋季大会
• [Presentation] Improving estimation of global BVOCs emissions using ground-based VOCs observations and satellite data of atmospheric HCHO (2018)
  • Author(s): 須藤健悟, 趙舒悦, 宮崎和幸, 伊藤昭彦
  • Organizer: 地球惑星科学連合大会（JPGU） 2018年5月22日、幕張
• [Presentation] Source attribution and budget analysis of black carbon in Antarctica (2018)
  • Author(s): 大西貴都, 須藤健悟, 原圭一郎
  • Organizer: 地球惑星科学連合大会（JPGU） 2018年5月22日、幕張
• [Presentation] Interannual variability and long-term trends in global tropospheric chemistry and aerosols during recent decades and in the future (2017)
  • Author(s): Kengo Sudo
  • Organizer: Chemistry-Climate Model Initiative Science Workshop 2017
  • Int'l Joint Research / Invited
• [Presentation] アジア・中国域からのエアロゾル流出量の季節・経年変動とその要因 (2017)
  • Author(s): 須藤健悟、山下剛史、竹村俊彦
  • Organizer: 日本気象学会2017年秋季大会
• [Presentation] Seasonal and interannual variation in aerosol outflow from Asia/China and its controlling factors (2017)
  • Author(s): 須藤健悟、山下剛史、竹村俊彦
  • Organizer: 地球惑星科学連合大会（JPGU）
• [Presentation] Interannual variability and long-term trends in global tropospheric ozone and related chemistry during recent decades (2016)
  • Author(s): Kengo Sudo
  • Organizer: Quadrennial Ozone Symposium 2016
  • Place of Presentation: Edinburgh, United Kingdom
  • Year and Date: 2016-09-04
  • Int'l Joint Research / Invited
• [Presentation] 衛星観測・全球化学輸送モデルによるホルムアルデヒドの全球収支とBVOCSエミッション量の推定 (2016)
  • Author(s): 須藤健悟, 磯野結貴, 宮崎和幸
  • Organizer: 地球惑星科学連合大会（JPGU）2016
  • Place of Presentation: 幕張
  • Year and Date: 2016-05-26
• [Presentation] 中国域におけるエアロゾルの収支解析：濃度と流出量の経年変動 (2016)
  • Author(s): 山下剛史, 須藤健悟
  • Organizer: 地球惑星科学連合大会（JPGU）2016
  • Place of Presentation: 幕張
  • Year and Date: 2016-05-26