Development of a balloon-borne chilled-mirror hygrometer for climate monitoring

• Project/Area Number: 22740306
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Hokkaido University
• Principal Investigator: FUJIWARA Masatomo 北海道大学, 大学院・地球環境科学研究院, 准教授 (00360941)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: 水蒸気測定 / 気候 / 観測 / 水蒸気 / 高層気象 / センサー

Research Abstract

We have developed a chilled mirror hygrometer for the climate monitoring, which accurately measures atmospheric water vapor from the surface to the lower stratosphere. Additionally, we re-evaluated the relative humidity measurement uncertainty of the RS-06G operational radiosonde, and developed a cloud particle sensor for balloon sounding. These measurement systems can make more reliable and stable water vapor measurements.

Research Products

• [Journal Article] Correction of the stepwise change observed at 0℃ in Meisei RS2-91, RS-01G, and RS-06G radiosonde relative humidity profiles (2013)
  • Author(s): Sugidachi, T., and M. Fujiwara
  • Journal Title: Journal of the Meteorological Society of Japan Volume: (in press)
  • NAID: 120005326764
  • Peer Reviewed
• [Journal Article] Correction of the stepwise change observed at 0 °C in Meisei RS2-91, RS-01G, and RS-06G radiosonde relative humidity profiles (2013)
  • Author(s): Sugidachi, T., and M. Fujiwara
  • Journal Title: Journal of the Meteorological Society of Japan (受理済) Volume: 91
  • NAID: 130004788782
  • Peer Reviewed
• [Journal Article] Cloud-top height variability associated with equatorial Kelvin waves in the tropical tropopause layer during the Mirai Indian Ocean cruise for the Study of MJO-convection Onset (MISMO) campaign (2010)
  • Author(s): Suzuki, J., M.Fujiwara, A.Hamada, Y.Inai, J.Yamaguchi, R.Shirooka, F.Hasebe, T.Takano
  • Journal Title: Scientific Online Letters on the Atmosphere Volume: 6 Pages: 97-100
  • NAID: 130004448515
  • Peer Reviewed
• [Journal Article] Seasonal to decadal variations of water vapor in the tropical lower stratosphere observed with balloon-borne cryogenic frostpoint hygrometers (2010)
  • Author(s): Fujiwara, M., H.Vomel, F.Hasebe, M.Shiotani, S.-Y.Ogino, S.Iwasaki, N.Nishi, T.Shibata, K.Shimizu, E.Nishimoto, J.M.Valverde-Canossa, H.B.Selkirk, S.J.Oltmans
  • Journal Title: Journal of Geophysical Research Volume: 115
  • Peer Reviewed
• [Presentation] 花粉センサを利用した雲粒子ゾンデの開発 (2013)
  • Author(s): 新井徹・杉立卓治・藤原正智・清水健作・奥村聡・林真由美
  • Organizer: 日本気象学会春季大会
  • Place of Presentation: 国立オリンピック記念青少年総合センター(東京都)
  • Year and Date: 2013-05-18
• [Presentation] 気候監視のためのラジオゾンデ用水蒸気センサの開発(第2報) (2013)
  • Author(s): 杉立卓治・藤原正智・清水健作・井端一雅・金井良之
  • Organizer: 日本気象学会春季大会
  • Place of Presentation: 国立オリンピック記念青少年総合センター(東京都)
  • Year and Date: 2013-05-17
• [Presentation] Development of a balloon-born Peltier-based chilled-mirror hygrometer for the troposphere and the lower stratosphere (2012)
  • Author(s): Sugidachi T., M. Fujiwara, K. Shimizu, K.Ibata, Y. Kanai
  • Organizer: A U.S.-Japan Bilateral Workshop on the Tropical Tropopause Layer: State of Current Science and Future Observational Needs
  • Place of Presentation: the International Pacific Research Center atthe East-West Center(Honolulu, Hawaii,USA)
  • Year and Date: 2012-10-16
• [Presentation] MeiseiRS-06Gラジオゾンデに寄る湿度測定の気温0度における不連続な変化とその補正法 (2012)
  • Author(s): 杉立卓治・藤原正智
  • Place of Presentation: 北海道大学学術交流会館(札幌市)
  • Year and Date: 2012-10-05
• [Presentation] 気候監視のためのラジオゾンデ用水蒸気センサの開発 (2012)
  • Author(s): 杉立卓治・藤原正智・清水健作・井端一雅・金井良之
  • Organizer: 日本気象学会春季大会
  • Place of Presentation: つくば国際会議場(茨城県)
  • Year and Date: 2012-05-27
• [Presentation] 気候監視のためのラジオゾンデ用水蒸気センサの開発
  • Author(s): 杉立卓治、藤原正智、清水健作、井端一雅、金井良之
  • Organizer: 日本気象学会2012年度春季大会
  • Place of Presentation: つくば国際会議場（つくば）
• [Presentation] Meisei RS-06G ラジオゾンデによる湿度測定の気温0℃における不連続な変化とその補正法
  • Author(s): 杉立卓治, 藤原正智
  • Organizer: 日本気象学会2012年度秋季大会
  • Place of Presentation: 北海道大学 学術交流会館（札幌）
• [Presentation] Development of a balloon-born Peltier-based chilled-mirror hygrometer for the troposphere and the lower stratosphere
  • Author(s): Takuji Sugidachi, Masatomo Fujiwara
  • Organizer: A U.S.-Japan Bilateral Workshop on the Tropical Tropopause Layer: State of Current Science and Future Observational Needs
  • Place of Presentation: the International Pacific Research Center at the East-West Center（Honolulu, Hawaii, USA）