Quantification of water vapor budget in the stratosphere

• Project/Area Number: 19540461
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Kyoto University
• Principal Investigator: SHIOTANI Masato Kyoto University, 生存圏研究所, 教授 (50192604)
• Co-Investigator(Kenkyū-buntansha): KAWAMOTO Nozomi 宇宙航空研究開発機構, 宇宙科学研究本部, 研究員 (50344263)
• Co-Investigator(Renkei-kenkyūsha): FUJIWARA Masatomo 北海道大学, 地球環境科学研究科, 准教授 (00360941)
• Research Collaborator: JOACHIM Urban チャルマース工科大学, 電波宇宙科学部, 研究員
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 成層圏 / 水蒸気 / 大気微量成分 / 衛星観測 / 熱帯対流圏界面

Research Abstract

成層圏における熱バランスやオゾン化学に対して決定的な影響を与える水蒸気の変動について調べた. 特に熱帯域に注目して, いくつかの衛星観測データと定点観測ながら精度の高い水蒸気ゾンデデータとの比較・検討をおこない, 衛星観測のデータ質についての知見を得た. さらに, 熱帯下部成層圏における水蒸気混合0比の過去約15年にわたる年々変動について見たところ, さまざまな変動要因は存在するものの, 全体としては増加傾向を示すことがわかった.

Research Products

• [Journal Article] Ozonesonde observations at Christmas Island (2oN, 157oW) in the equatorial central Pacific (2008)
  • Author(s): Takashima, H., M. Shiotani, M. Fujiwara, N. Nishi, and F. Hasebe
  • Journal Title: Geophys.Res 113,D10112
  • Peer Reviewed
• [Journal Article] Space-time variability of equatorial Kelvin waves and intraseasonal oscillations around the tropical tropopause (2008)
  • Author(s): Suzuki, J. and M. Shiotani
  • Journal Title: J. Geophys. Res 113, D16110
  • NAID: 120005853275
  • Peer Reviewed
• [Journal Article] Ozonesonde observations at Christmas Island (2゜N, 157°W) in the equatorial central Pacific. (2008)
  • Author(s): Takashima, H., M. Shiotani, M. Fujiwara, N. Nishi, F. Hasebe
  • Journal Title: J. Geophys. Res. 113 D10112
  • Peer Reviewed
• [Journal Article] Space-time variability of equatorial Kelvin waves and intraseasonal oscillations around the tropical tropopause. (2008)
  • Author(s): Suzuki, J., M. Shiotani
  • Journal Title: J. Geophys. Res. 113 D16110
  • NAID: 120005853275
  • Peer Reviewed
• [Journal Article] Validation of Aura/MLS water vapor by balloon borne cryogenic frostpoint hygrometer measurements (2007)
  • Author(s): Vomel, H., J. E. Barnes, R. N. Forno, M. Fujiwara, F. Hasebe, S. Iwasaki, R. Kivi, N. Komala, E. Kyroe, T. Leblanc, B. Morel, S.-Y. Ogino, W. G. Read, S. C. Ryan, S. Saraspriya, H. Selkirik, M. Shiotani, J. Valverde Canossa, and D. N. Whiteman
  • Journal Title: J. Geophys. Res 112, D24S37
  • Peer Reviewed
• [Journal Article] In situ observations of dehydrated air parcels advected horizontally in the tropical tropopause layer of the western Pacific (2007)
  • Author(s): Hasebe, F., M. Fujiwara, N. Nishi, M. Shiotani, H. Vomel, S. Oltmans, H. Takashima, S. Saraspriya, N. Komala, and Y. Inai
  • Journal Title: Atmospheric Chemistry and Physics 7 Pages: 803-813
  • URL: http://www.atmos-chem-phys.net/7/803/2007/acp-7-803-2007.pdf
  • Peer Reviewed
• [Journal Article] Validation of Aura/MLS water vapor by balloon borne cryogenic frostpoint hygrometer measurements. (2007)
  • Author(s): Voemel, H., J.E. Barnes, R.N. Forno, M. Fujiwara, F. Hasebe, S. Iwasaki, R. Kivi, N. Komala, E. Kyroe, T. Leblanc, B. Morel, S.-Y. Ogino, W.G. Read, S.C. Ryan, S. Saraspriya, H. Selkirik, M. Shiotani, J. Valverde Canossa and D.N. Whiteman
  • Journal Title: J. Geophys. Res. 112D24S37
  • Peer Reviewed
• [Journal Article] In situ observations of dehydrated air parcels advected horizontally in the Tropical Tropopause Layer of the western Pacific. (2007)
  • Author(s): Hasebe, F., M. Fujiwara, N. Nishi, M. Shiotani, H. Voemel, S. Oltmans, H. Takashima, S. Saraspriya, and N. Komala
  • Journal Title: Atmospheric Chemistry and Physics 7 Pages: 803-813
  • Peer Reviewed
• [Presentation] Water vapor sonde observations in the equatorial Pacific (2009)
  • Author(s): Shiotani, M.
  • Organizer: 1st Author Meeting, SPARC Water Vapour Assessment, SPARC Water Vapour Initiative
  • Place of Presentation: Tronto, Canada
• [Presentation] Ozone and water vapor observations in the equatorial Pacific (2009)
  • Author(s): Shiotani, M.
  • Organizer: The second international workshop on prevention and mitigation of meteorological disasters in southeast Asia, Bandung
  • Place of Presentation: Indonesia
• [Presentation] Ozone and water vapor observations in the equatorial Pacific. (2009)
  • Author(s): M. Shiotani
  • Organizer: The Second International Workshop on Prevention and Mitigation of Meteorological Disasters in Southeast Asia
  • Place of Presentation: Bandung, Indonesia
• [Presentation] Water vapor sonde observations in the equatorial Pacific. (2009)
  • Author(s): M. Shiotani, M. Fijiwara, F. Hasebe, H. Voemel, S. Oltmans
  • Organizer: 1st Author Meeting SPARC Water Vapour Assessment SPARC Water Vapour Initiative
  • Place of Presentation: Tronto, Canada
• [Presentation] A Review of Balloon Borne Observations of Supersaturation in the Tropical Tropopause Transition Layer (2008)
  • Author(s): Vomel, H., H. Selkirk, J. Valverde- Canossa, F. Hasebe, M. Fujiwara, M. Shiotani, T. Shibata, and F. Wienhold
  • Organizer: AGU Chapman conference on atmospheric water vapor and its role in climate, Kailua-Kona
  • Place of Presentation: Hawaii, USA
• [Presentation] A Review of Balloon Borne Observations of Supersaturation in the Tropical Tropopause Transition Layer. (2008)
  • Author(s): Vomel, H., H. Selkirk, J. Valverde-Canossa, F. Hasebe, M. Fujiwara, M. Shiotani, T. Shibata, F.
  • Organizer: AGU Chapman conference on atmospheric water vapor and its role in climate
  • Place of Presentation: Kailua-Kona, Hawaii
• [Presentation] Ozone and water vapor sonde observations in the equatorial Pacific, 4th KAGI21 International Summer School (2007)
  • Author(s): Shiotani, M.
  • Organizer: Kyoto University Active Geosphere Investigations for the 21st Century COE Program, Kyoto University and Institute Teknologi Bandung 2007
  • Place of Presentation: Bandung, Indonesia
• [Presentation] Ozone and water vapor sonde observations in the equatorial Pacific. (2007)
  • Author(s): Shiotani, M.
  • Organizer: 4th KAGI21 International Summer School Kyoto University Active Geosphere Investigations for the21st Century COE Program, Kyoto University and Institute Teknologi Bandung 2007
  • Place of Presentation: Bandung, Indonesia
• [Remarks] MACS-Multi-disciplinarily Atmospheric Chemistry School, 大気化学勉強会-人工衛星からの大気微量成分観測,1993/3~2004/1 講義集.発行 : 2008年8月.発行者 : 大気化学勉強会事務局.(塩谷はMACSの代表)