Determination of vertical profiles and origins of atmospheric HONO and NO2 by integration of remote and in-situ observation methodologies

• Project/Area Number: 26550022
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: KANAYA Yugo 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 分野長代理 (60344305)
• Co-Investigator(Renkei-kenkyūsha): KOMAZAKI Yuichi 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任技術研究員 (80286640)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 地球観測 / 大気現象 / 地球変動予測 / 対流圏化学 / 窒素酸化物

Outline of Final Research Achievements

During winter of 2014 and 2016, and summer of 2014, we observed atmospheric HONO and its precursor NO2 by remote sensing (MAX-DOAS) and by in-situ analyzers (LOPAP and CAPS) in Yokosuka, to elucidate altitude range in which HONO was present and its production processes. HONO/NO2 ratio at the surface level was 2-4% and 1-2% during nighttime and daytime in winter, while they were 1-2% and 2-3% in summer. Missing production rate of HONO from NO2 was estimated to be 0.2 and 0.5 ppb h-1 during winter and summer. Correlation analysis suggested that water vapor, photolysis, and carbonaceous aerosols might participate in the processes. The photolysis of HONO was more important than the photolysis of O3 as OH radical sources in the both seasons.

Research Products

• [Int'l Joint Research] マックスプランク研究所(ドイツ)
• [Int'l Joint Research] 大気物理研究所(ロシア連邦)
• [Int'l Joint Research] 中国科学院安徽光学精密機械研究所(中国)
• [Int'l Joint Research] 光州科学技術院(韓国)
• [Journal Article] Diagnosis of Photochemical Ozone Production Rates and Limiting Factors in Continental Outflow Air Masses Reaching Fukue Island, Japan: Ozone-Control Implications (2016)
  • Author(s): Kanaya, Y., H. Tanimoto, Y. Yokouchi, F. Taketani, Y. Komazaki, H. Irie, H. Takashima, S. Inomata
  • Journal Title: Aerosol and Air Quality Res. Volume: 16 Issue: 2 Pages: 430-441
  • DOI: 10.4209/aaqr.2015.04.0220
  • Peer Reviewed / Open Access
• [Journal Article] Long-term MAX-DOAS network observations of NO2 in Russia and Asia (MADRAS) during the period 2007--2012: instrumentation, elucidation of climatology, and comparisons with OMI satellite observations and global model simulations (2014)
  • Author(s): Kanaya, Y., Irie, H., Takashima, H., Iwabuchi, H., Akimoto, H., Sudo, K., Gu, M., Chong, J., Kim, Y. J., Lee, H., Li, A., Si, F., Xu, J., Xie, P.-H., Liu, W.-Q., Dzhola, A., Postylyakov, O., Ivanov, V., Grechko, E., Terpugova, S., and Panchenko, M.
  • Journal Title: Atmos. Chem. Phys. Volume: 14 Issue: 15 Pages: 7909-7927
  • DOI: 10.5194/acp-14-7909-2014
  • Peer Reviewed / Open Access
• [Presentation] Diagnosis of Photochemical Ozone Production Rates and Limiting Factors based on Observation-based Modeling Approach over East Asia: Impact of Radical Chemistry Mechanism and Ozone-Control Implications (2015)
  • Author(s): Yugo Kanaya
  • Organizer: AGU fall meeting 2015
  • Place of Presentation: モスコーニ会議場、サンフランシスコ市、米国
  • Year and Date: 2015-12-18
  • Int'l Joint Research / Invited
• [Presentation] 対流圏大気のOHラジカル計測と酸化過程の理解 (2015)
  • Author(s): 金谷有剛
  • Organizer: 2015年度 日本地球化学会年会
  • Place of Presentation: 横浜国立大学、神奈川県横浜市
  • Year and Date: 2015-09-18
  • Invited
• [Presentation] Long-term MAX-DOAS network observations of NO2 in Russia and Asia (MADRAS) since 2007: Comparisons with satellite observations and Climatology (2015)
  • Author(s): Yugo Kanaya, H. Irie, H. Takashima, H. Iwabuchi, H. Akimoto, K. Sudo, M. Gu, J. Chong, Y. J. Kim, H. Lee, A. Li, F. Si, J. Xu, P.-H. Xie, W.-Q. Liu, A. Dzhola, O. Postylyakov, V. Ivanov, E. Grechko, S. Terpugova, and M. Panchenko
  • Organizer: 7th International DOAS Workshop
  • Place of Presentation: Royal Belgian Institute of Natural Sciences, ブリュッセル市、 ベルギー
  • Year and Date: 2015-07-08
  • Int'l Joint Research
• [Presentation] MAX-DOAS法による横須賀での大気中ホルムアルデヒド連続観測：妥当性の検証とオゾン濃度との相関 (2015)
  • Author(s): 金谷有剛、Postylyakov Oleg、 入江仁士、高島久洋
  • Organizer: 日本地球惑星科学連合2015年大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2015-05-28
• [Presentation] オゾンをめぐる研究の諸課題：対流圏化学と衛星観測 (2015)
  • Author(s): 金谷有剛
  • Organizer: 日本気象学会 オゾン研究連絡会
  • Place of Presentation: つくば国際会議場、茨城県つくば市
  • Year and Date: 2015-05-21
• [Presentation] Long-term MAX-DOAS network observations of NO2 in Russia and Asia (MADRAS) during 2007-2012: Comparisons with OMI satellite observations (2014)
  • Author(s): Yugo Kanaya
  • Organizer: The 5th GEMS Science Team Meeting
  • Place of Presentation: President Hotel, Seoul, South Korea
  • Year and Date: 2014-10-08
  • Invited
• [Presentation] 東京都心における HOxラジカル類実測に基づくオゾン生成レジーム推定 (2014)
  • Author(s): 金谷有剛
  • Organizer: 第55回大気環境学会年会 都市大気環境モデリング分科会
  • Place of Presentation: 愛媛大学、愛媛県松山市
  • Year and Date: 2014-09-17
  • Invited
• [Presentation] Long-term MAX-DOAS network observations of NO2 in Russia and Asia (MADRAS) during 2007-2012: Climatology and comparisons with OMI satellite observations and global model simulations (2014)
  • Author(s): Y. Kanaya, H. Irie, H. Takashima, H. Iwabuchi, H. Akimoto, K. Sudo, M. Gu, J. Chong, Y. J. Kim, H. Lee,, A. Li, F. Si, J. Xu, P.-H. Xie, W.-Q. Liu, A. Dzhola, O. Postylyakov, V. Ivanov, E. Grechko, S. Terpugova, and M. Panchenko
  • Organizer: AOGS2014
  • Place of Presentation: Royton Sapporo, Hokkaido, Sapporo
  • Year and Date: 2014-08-01
  • Invited
• [Presentation] MAX-DOAS network observations in Russia and Asia (MADRAS) during 2007-2013: Highlights in NO2 and HCHO measurements (2014)
  • Author(s): Yugo Kanaya
  • Organizer: Seminar at Asia Center for Air Pollution Research
  • Place of Presentation: アジア大気汚染研究センター、新潟県新潟市
  • Year and Date: 2014-07-11
  • Invited
• [Remarks] MAX-DOAS network over Asia and Russia
  • URL: https://ebcrpa.jamstec.go.jp/maxdoashp/