Understanding the ozone enhancement over southeast Asia by integrating ozonesonde observations and a chemical transport model

• Project/Area Number: 16K00535
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: Ogino Shin-Ya 国立研究開発法人海洋研究開発機構, 大気海洋相互作用研究分野, 主任研究員 (80324937)
• Co-Investigator(Kenkyū-buntansha): 宮崎 和幸 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 招聘主任研究員 (30435838)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: オゾン / オゾンゾンデ / 大気汚染 / インドシナ半島 / 化学輸送モデル / 科学輸送モデル / 物質輸送

Outline of Final Research Achievements

Tropospheric ozone is important for understanding and predicting global environmental change as one of the significant greenhouse gasses. Its three-dimensional distribution and dynamics are still unknown due to observational constraints. In this study, we reproduced the springtime ozone enhancement that has found in Hanoi, Vietnam using a chemical transport model. The model showed that the ozone was generated over the northern Indochina Peninsula due to biomass burning. We further showed that the generated ozone was transported upward and eastward by the convective mixing near the surface and the monsoonal westerly flow to cause the ozone enhancement at about 3 km height in Hanoi.

Academic Significance and Societal Importance of the Research Achievements

本研究では、東南アジア域で発生したオゾンの輸送メカニズムを解明するとともに、さらに東方へ全球的に輸送されることをも示した。このことは、今後の予測される全球的なオゾン変動の解釈に役立つものと考えられる。また、モデルで再現されたオゾン濃度は観測されるものと比べて低いものであった。今後、これらの点に関する再現性向上を図り、地球環境変動と強く関係するオゾン濃度変動の理解と予測に貢献できる可能性を示した。

Research Products

• [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] Ozonesonde Quality Assurance: The JOSIE-SHADOZ (2017) Experience (2019)
  • Author(s): Thompson A. M., Smit H. G., Witte J. C., R.M. Stauffer, B.J. Johnson, G. Morris, P. von der Gathen, R. Van Malderen, J. Davies, A. Piters, M. Allaart, F. Posny, R. Kivi, P. Cullis, N.T. Hoang Anh, E. Corrales, T. Machinini, F.R. da Silva, G. Paiman, K. Thiong, Z. Zainal, G.B. Brothers, Ogino S.-Y., et al.
  • Journal Title: Bulletin of the American Meteorological Society Volume: 100 Issue: 1 Pages: 155-171
  • DOI: 10.1175/bams-d-17-0311.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development and Decay Processes of Dual Inversion Layers in Winter over the Northwest Coast of the South China Sea (2018)
  • Author(s): Nodzu Masato I.、Ogino Shin-Ya、Matsumoto Jun
  • Journal Title: Journal of Climate Volume: 31 Issue: 3 Pages: 1245-1266
  • DOI: 10.1175/jcli-d-16-0907.1
  • Peer Reviewed
• [Journal Article] Evaluation of ACCMIP ozone simulations and ozonesonde sampling biases using a satellite-based multi-constituent chemical reanalysis (2017)
  • Author(s): Miyazaki Kazuyuki、Bowman Kevin
  • Journal Title: Atmospheric Chemistry and Physics Volume: 17 Issue: 13 Pages: 8285-8312
  • DOI: 10.5194/acp-17-8285-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
• [Presentation] The Value of Homogenized Ozonesonde Networks: Twenty Years in the SHADOZ (2019)
  • Author(s): Jacquelyn C. Witte, Greenbelt, MD, A. M. Thompson, B. Johnson, G. J. R. Coetzee, F. Posny, H. Voemel, S.-Y. Ogino, M. Mohamad, R. Stubi, G. Romanens, F. R. da Silva, N. Komala, M. Fujiwara, A. Piters, M. Maata, F. Mani, and H. B. Selkirk
  • Organizer: 99th American Meteorological Society Annual Meeting
  • Int'l Joint Research
• [Presentation] Observational results from ozone and water vapor soundings in Hanoi, Vietnam (2019)
  • Author(s): Shin-Ya Ogino
  • Organizer: 2nd Joint Meeting of Cryogenic Air Sampling Group and SOWER Group in 2018
• [Presentation] Ozone transport over the southeast Asian region revealed by the ozonesonde observations in Hanoi, Vietnam (2018)
  • Author(s): Shin-Ya Ogino, Masato Shiotani, M. Fujiwara, F. Hasebe, K. Miyazaki, Anne Thompson, Jacquelyn Witte, Ngyuen Thi Tan Thanh, Hoang Gia Hiep, Nguyen Vinh Thu, Hoang Thuy Ha, Ngo Duc Thanh, Dinh Duc Tu, Nga Lai, Nguyen Hoang Anh, and colleagues
  • Organizer: Mini-Workshop on Upper-Air Sounding and Air Quality
• [Presentation] Applications of satellite, ozonesonde, and aircraft measurements and chemical transport models on air quality research (2018)
  • Author(s): Kazuyuki Miyazaki
  • Organizer: Mini-Workshop on Upper-Air Sounding and Air Quality
• [Presentation] Twenty years in the SHADOZ: Milestones in reprocessing and uncertainties (2018)
  • Author(s): Witte Jacquelyn C, Thompson Anne M, Johnson Bryan J, Gert Coetzee, Francoise Posny, Holger Vomel, Ogino Shin-Ya, Maznorizan Mohamad, Rene Stubi, Gonzague Romanens, Francisco Raimundo, Ankie Piters, Matakita Maata, Francis Mani, Henry Selkirk, Ninong Komala, Fujiwara Masatomo
  • Organizer: AGU Fall meeting 2018
  • Int'l Joint Research
• [Presentation] Application of multi-constituent satellite data assimilation for KORUS-AQ (2017)
  • Author(s): Miyazaki, K., T. Sekiya, D. Fu, K. W. Bowman, T. Walker, S. S. Kulawik, K. Sudo, Y. Kanaya, M. Takigawa, K. Ogochi, B. Gaubert, J. Barre, L. Emmons
  • Organizer: AGU Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] A tropospheric chemistry reanalysis based on multi-constituent satellite data assimilation and its application for KORUS-AQ (2017)
  • Author(s): Miyazaki, K., T. Sekiya, H. Eskes, F. Boersma, D. Fu, K. Bowman, Susan S. Kulawik, T. Walker, K. Sudo, Y. Kanaya, M. Takigawa, K. Ogochi, B. Gaubert, J. Barre, L. Emmons, A tropospheric chemistry reanalysis based on multi-constituent satellite data assimilation and its application for KORUS-AQ
  • Organizer: 2017 annual conference of Korean Society for Atmospheric Environment
  • Int'l Joint Research / Invited
• [Presentation] Decadal changes in global surface NOx emissions from multi-constituent satellite data assimilation (2017)
  • Author(s): Miyazaki, K., H. Eskes, F. Boersma, K. Bowman, Y. Kanaya, T. Sekiya
  • Organizer: 18th GEIA Conference
  • Int'l Joint Research
• [Presentation] Application of multiple-species satellite data assimilation for KORUS-AQ and air quality monitoring over East Asia (2017)
  • Author(s): Miyazaki, K., T. Sekiya, D. Fu, K. W. Bowman, S. S. Kulawik, K. Sudo, Y. Kanaya, M. Takigawa, K. Ogochi, B. Gaubert, J. Barre, L. Emmons, and KORUS-AQ team
  • Organizer: AOGS 14th Annual Meeting
  • Int'l Joint Research
• [Presentation] Evaluation of ACCMIP and CCMI ozone simulations using a multi-constituent chemical reanalysis (2017)
  • Author(s): Miyazaki, K., K. Bowman
  • Organizer: Chemistry-Climate Model Initiative Science Workshop
  • Int'l Joint Research
• [Presentation] Development of a tropospheric chemistry data assimilation system: GEOS-Chem-EnKF (2017)
  • Author(s): Miyazaki, K., K. Bowman, K. Yumimoto, T. Walker
  • Organizer: The 8th International GEOS-Chem Meeting
  • Int'l Joint Research
• [Presentation] A tropospheric chemistry reanalysis based on an assimilation of the A-Train窶冱 multi-sensor system (2017)
  • Author(s): Miyazaki, K., H. Eskes, K. Sudo, K. W. Bowman, F. Boersma, D. Fu, S. S. Kulawik, E. Wong, T. Sekiya
  • Organizer: 3rd International A-Train Symposium
  • Int'l Joint Research
• [Presentation] Decadal changes in global surface NOx emissions from multi-constituent satellite data assimilation (2016)
  • Author(s): Miyazaki, K., H. Eskes, K. Sudo, K. F. Boersma, K. W. Bowman, Y. Kanaya
  • Organizer: AGU Fall Meeting 2016
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-16
  • Int'l Joint Research
• [Presentation] Application of tropospheric chemistry reanalysis to chemical OSSE studies (2016)
  • Author(s): Miyazaki, K. and K. Bowman
  • Organizer: Second Workshop on Atmospheric Composition Observation System Simulation Experiments (OSSEs)
  • Place of Presentation: Reading, UK
  • Year and Date: 2016-11-11
  • Int'l Joint Research / Invited
• [Presentation] A tropospheric chemistry reanalysis based on multi-constituent satellite data assimilation (2016)
  • Author(s): Miyazaki, K
  • Organizer: University of Toronto Noble seminar series
  • Place of Presentation: Toronto, Canada
  • Year and Date: 2016-10-03
  • Int'l Joint Research / Invited