A study of chemical composition changes in the mesosphere related with penetration of magnetospheric high energy electrons

2008 Fiscal Year Final Research Report

• Project/Area Number: 18340150
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Nagoya University
• Principal Investigator: NAGAHAMA Tomoo Nagoya University, 太陽地球環境研究所, 准教授 (70377779)
• Co-Investigator(Kenkyū-buntansha): MIZUNO Akira 名古屋大学, 太陽地球環境研究所, 教授 (80212231) ; MAEZAWA Hiroyuki 名古屋大学, 太陽地球環境研究所, 助教 (00377780) ; MIYOSHI Yoshizumi 名古屋大学, 太陽地球環境研究所, 助教 (10377781)
• Project Period (FY): 2006 – 2008
• Keywords: 超高層大気環境 / 超高層物理学 / 地球観測 / 中間圏 / 磁気圏・電離圏 / 大気微量分子 / 加速電子 / オゾン

Research Abstract

太陽活動に伴う高エネルギー粒子の地球大気への侵入による地球の中間圏大気微量分子の組成に与える影響を観測的に明らかにするために、高周波数分解能デジタル分光計を搭載したミリ波大気放射分光観測装置を用いて、中間圏オゾンおよび二酸化窒素(NO2)の連続観測を行った。その結果、250GHz帯でのNO2スペクトルの連続観測に初めて成功し、これらが中間圏に存在するNO2から放射されたものであることを示した。

Research Products

• [Journal Article] Ground-based millimeter-wave observations of water vapor emission (183 GHz) at Atacama, Chile (2008)
  • Author(s): Kuwahara, T., Mizuno, A., Nagahama, T., Maezawa, H., Morihira, A., Toriyama, N., Murayama, S., Matsuura, M., Sugimoto, T., Asayama, S., Mizuno, N., Onishi, T. and Fukui, Y.
  • Journal Title: Advances in Space Research 42 Pages: 1167-1171
  • Peer Reviewed
• [Journal Article] "Ground-Based Millimeter-Wave Radiometer for Measuring the Stratospheric Ozone over Rikubetsu, Japan (2007)
  • Author(s): Nagahama, T., Nakane, H., Fujinuma, Y., Morihira, A., Mizuno, A., Ogawa, H. and Fukui, Y.
  • Journal Title: Journal of the Meteorological Society of Japan 85 Pages: 495-509
  • Peer Reviewed
• [Journal Article] Continuous Measurements of the Stratospheric and Mesospheric Ozone by Using Ground-based Millimeter-wave Radiometers (2006)
  • Author(s): Nagahama, T., Mizuno, A., Maezawa, H., Nakane, H., Fujinuma, Y., Morihira, A., Ogawa, H. and Fukui, Y.
  • Journal Title: Proceedings of International Conference on Submillimeter Science and Technology Pages: 20-23
  • Peer Reviewed
• [Presentation] Millimeter-wave observations of the stratospheric and mesospheric chemical composition change over Syowa station (2008)
  • Author(s): Mizuno, A., et.al.
  • Organizer: 第32回極域宙空圏シンポジウム
  • Place of Presentation: 国立極地研究所、東京
  • Year and Date: 2008-08-04
• [Presentation] Measurements of mesospheric O_2, NO_2 and HO_2 with a ground-based millimetre-wave radiometer at Atacama (2008)
  • Author(s): Nagahama T., Mizuno, A., Maezawa, H., Toriyama, N., Kojima, Y., Kuwahara, T., Toki, K., Terada, R. and Morihira, A.
  • Organizer: Chile, Quadrennial Ozone Symposium
  • Place of Presentation: Tromso, Norway
  • Year and Date: 2008-06-30
• [Presentation] A first result of ground-based millimeter-wave measurements of stratospheric ClO over Atacama (2008)
  • Author(s): Kuwahara, T., Mizuno, A., Nagahama, T., Maezawa, H., Terada, R. and Morihira, A Terada, R. and Morihira, A.
  • Organizer: Chile, Quadrennial Ozone Symposium
  • Place of Presentation: Tromso, Norway
  • Year and Date: 2008-06-30
• [Presentation] 南米チリ・アタカマ高地における成層圏ClOのミリ波観測 (2008)
  • Author(s): 長浜智生、水亮、前澤裕之、桑原利尚、寺田良平、森平淳志
  • Organizer: 地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉
  • Year and Date: 2008-05-26
• [Presentation] Ground-based Millimeter-wave Measurements of Vertical Distribution of H_2^<18>O in Upper Stratosphere and Mesosphere over Atacama, Chile (2007)
  • Author(s): Nagahama, T., Mizuno, A., Maezawa, H., Kuwahara, T., Sugimoto, T., Matsuura, M., Murayama, S., Toki, K., Toriyama, N., Morihira, A. and Fukui, Y.
  • Organizer: 4th Annual Meeting of the Asia Oceania Geosciences Society
  • Place of Presentation: Bangkok, Thailand
  • Year and Date: 2007-07-31
• [Presentation] Ground-based Millimeter-wave Measurements of Vertical H_2^<18>O Distribution at Atacama, Chile (2006)
  • Author(s): Nagahama, T., Mizuno, A., Maezawa, H., Toriyama, N., Kuwahara, T., Sugimoto, T., Matsuura, M., Murayama, S., Morihira, A., Nakane, H. and Fukui, Y.
  • Organizer: 2006 American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, U.S.A
  • Year and Date: 2006-12-11
• [Presentation] A Plan for Continuous Measurements of Mesospheric Ozone, NO_x and HO_x with a Ground-based Millimeter-wave Radiometer in Chile (2006)
  • Author(s): Nagahama, T., Mizuno, A., Maezawa, H., Toriyama, N., Kuwahara, T., Sugimoto, T., Matsuura, M., Murayama, S. and Morihira, A
  • Organizer: 36th COSPAR Scientific Assembly
  • Place of Presentation: Beijing, China
  • Year and Date: 2006-07-17
• [Presentation] ミリ波分光法による中間圏オゾン、HO_x、NO_xのモニタリング観測計画 (2006)
  • Author(s): 長浜智生、水野亮、前澤裕之、桑原尚、杉本朋世、松浦真人、村山智史、森平淳志
  • Organizer: 日本地球惑星科学連合2006年大会
  • Place of Presentation: 幕張メッセ、千葉.
  • Year and Date: 2006-05-15
• [Remarks]
  • URL: http://skxl.stelab.nagoya-u.ac.jp/
• [Remarks]
  • URL: http://kenpro.mynu.jp:8001/Profiles/002