Study on relationship between ion outflow and thermal electron transportation

2011 Fiscal Year Final Research Report

• Project/Area Number: 21740355
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Space and upper atmospheric physics
• Research Institution: National Institute of Polar Research
• Principal Investigator: OGAWA Yasunobu 国立極地研究所, 研究教育系, 講師 (00362210)
• Project Period (FY): 2009 – 2011
• Keywords: カスプ領域 / 電離圏 / 極冠域 / イオン流出

Research Abstract

The relationship between ionospheric ion upflow and electrons(thermal electrons and secondary electrons caused by particle precipitations) in/near the dayside cusp region has been investigated. This study was based on new observations with the European Incoherent Scatter(EISCAT) Svalbard radar(ESR), and statistical analysis using ESR database. From these investigations, relationships between ion upflow, electron heating, and ion-acoustic turbulences were quantitatively understood.

Research Products

• [Journal Article] 欧州非干渉散乱(EISCAT)レーダーの大規模データ処理と可視化 (2012)
  • Author(s): 小川泰信,野澤悟徳, I. Haggstrom,大山伸一郎,元場哲郎,津田卓雄,齋藤昭則,宮下幸長,田中良昌,堀智昭,上野玄太,宮岡宏,藤井良一
  • Journal Title: 宇宙科学情報解析論文誌 Volume: vol.1 Pages: 83-89
  • Peer Reviewed
• [Journal Article] Polar cap thermosphere and ionosphere during the solar minimum period : EISCAT Svalbard radar observations and GCM simulations (2012)
  • Author(s): Fujiwara, H., S. Nozawa, S. Maeda, Y. Ogawa, Y. Miyoshi, H. Jin, H. Shinagawa, K. Terada
  • Journal Title: Planet and Space Volume: (in press)
  • Peer Reviewed
• [Journal Article] Electron temperature in the cusp as measured with the SCIFER-2 sounding rocket (2012)
  • Author(s): Lund, E. J., M. R. Lessard, F. Sigernes, D. A. Lorentzen, K. Oksavik, P. M. Kintner, K. A. Lynch, D. H. Huang, B. C. Zhang, H. G. Yang, and Y. Ogawa
  • Journal Title: J. Geophys. Res. Volume: (in press)
  • Peer Reviewed
• [Journal Article] On the statistical relation between ion upflow and naturally enhanced ion-acoustic lines observed with the EISCAT Svalbard radar (2011)
  • Author(s): Ogawa, Y., S. C. Buchert, I. Haggstrom, M. T. Rietveld, R. Fujii, S. Nozawa, and H. Miyaoka
  • Journal Title: J. Geophys. Res. Volume: vol.116 Pages: A03313
  • DOI: doi:10.1029/2010JA015827
  • Peer Reviewed
• [Journal Article] Solar zenith angle dependence of plasma density and temperature in the polar cap ionosphere and low-altitude magnetosphere during geomagnetically quiet periods at solar maximum (2011)
  • Author(s): Kitamura, N., Y. Ogawa, T. Nishimura, N. Terada, T. Ono, A. Shinbori, A. Kumamoto, V. Truhlik, and J. Smilauer
  • Journal Title: J. Geophys. Res. Volume: vol.115 Pages: A07310
  • DOI: doi:10.1029/2009JA014766
  • Peer Reviewed
• [Journal Article] Solar activity dependence of ion upflow in the polar ionosphere observed with the European Incoherent Scatter(EISCAT) Tromso UHF radar (2010)
  • Author(s): Ogawa, Y., S. C. Buchert, A. Sakurai, S. Nozawa, and R. Fujii
  • Journal Title: J. Geophys. Res. Volume: vol.115 Pages: A07310
  • DOI: doi:10.1029/2009JA014766,2010
  • Peer Reviewed
• [Journal Article] An analysis of pump-induced artificial ionospheric ion upwelling at EISCAT (2010)
  • Author(s): Kosch, M. J., Y. Ogawa, M. T. Rietveld, S. Nozawa and R. Fujii
  • Journal Title: J. Geophys. Res. Volume: vol.115 Pages: A12317
  • DOI: doi:10.1029/2010JA015854
  • Peer Reviewed
• [Journal Article] Characteristics of ion upflow and downflow observed with the European Incoherent Scatter Svalbard radar (2009)
  • Author(s): Ogawa, Y., S. C. Buchert, R. Fujii, S. Nozawa, and A. P. van Eyken
  • Journal Title: J. Geophys. Res. Volume: vol.114 Pages: A05305
  • DOI: doi:10.1029/2009GL041501,2009
  • Peer Reviewed
• [Journal Article] On the source of the polar wind in the polar topside ionosphere : First results from the EISCAT Svalbard radar (2009)
  • Author(s): Ogawa, Y., I. Haggstrom, S. C. Buchert, K. Oksavik, S. Nozawa, M. Hirahara, A. P. van Eyken, T. Aso, and R. Fujii
  • Journal Title: Geophys. Res. Lett. Volume: vol.36 Pages: L24103
  • DOI: doi:10.1029/2009GL041501
  • Peer Reviewed
• [Presentation] Resent results of ion up/outflow observed with the EISCAT radars (2011)
  • Author(s): Ogawa, Y., and S. C. Buchert
  • Organizer: The 2011 IUGG General Assembly
  • Place of Presentation: Melbourne Australia
  • Year and Date: 20110700
• [Presentation] 極域電離圏における降下粒子と熱流の関係 (2011)
  • Author(s): 小川泰信、田中良昌、元場哲郎、宮岡宏、門倉昭
  • Organizer: 地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ(ポスター発表)
  • Year and Date: 20110500
• [Presentation] EISCAT observations of field-aligned ion flow in the topside ionosphere (2011)
  • Author(s): Ogawa, Y., and S. C. Buchert
  • Organizer: The 3rd EISCAT_3D User meeting
  • Place of Presentation: IRF Uppsala
  • Year and Date: 2011-05-19
• [Presentation] Investigations of the upper polar atmosphere by incoherent scatter plasma line observations (2011)
  • Author(s): Ogawa, Y., G. Ueno and I. Haggstrom
  • Organizer: European Geosciences Union General Assembly 2011
  • Place of Presentation: Austria(Poster)
  • Year and Date: 2011-04-08
• [Presentation] 欧州非干渉散乱(EISCAT)データベースを用いた極域超高層大気研究 (2010)
  • Author(s): 小川泰信、野澤悟徳、宮岡宏、大山伸一郎、齊藤昭則、元場哲郎、藤井良一
  • Organizer: 第128回SGEPSS学会
  • Place of Presentation: 沖縄県市町村自治会館
  • Year and Date: 20101100
• [Presentation] EISCATスヴァールバルレーダーにより観測されたイオン上昇流とイオン音波擾乱の関係:IPY連続観測データによる統計解析結果 (2010)
  • Author(s): 小川泰信、S. C. Buchert、I. Haggstrom、藤井良一、野澤悟徳、宮岡宏
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 20100500
• [Presentation] On the statistical relation between ion upflow and naturally enhanced ion-acoustic lines observed with the EISCAT Svalbard radar (2010)
  • Author(s): Ogawa, Y., S. C. Buchert, I. Haggstrom, R. Fujii, S. Nozawa, and H. Miyaoka
  • Organizer: IPY Open Science Conference
  • Place of Presentation: Oslo
  • Year and Date: 20100000
• [Presentation] On the statistical relation between ion upflow and naturally enhanced ion-acoustic lines observed with the EISCAT Svalbard radar (2010)
  • Author(s): Ogawa, Y., S. C. Buchert, I. Haggstrom, R. Fujii, S. Nozawa, and H. Miyaoka
  • Organizer: European Geosciences Union General Assembly 2010
  • Place of Presentation: Vienna, Austria
  • Year and Date: 20100000
• [Presentation] EISCAT observations during the International Polar Year (2010)
  • Author(s): Ogawa Y., I. Haggstrom, and A. P. van Eyken
  • Organizer: Second International Symposium on the Arctic Research(ISAR-2)
  • Place of Presentation: Tokyo(Poster)
  • Year and Date: 2010-12-09
• [Presentation] 非干渉散乱プラズマラインを用いた極域超高層大気の研究 (2010)
  • Author(s): 小川泰信、上野玄太、齊藤昭則、田丸裕史、I. Haggstrom
  • Organizer: 第34回極域宙空圏シンポジウム
  • Place of Presentation: 国立極地研究所(ポスター発表)
  • Year and Date: 2010-12-02
• [Presentation] 非干渉散乱波のプラズマラインの検出手法開発 (2010)
  • Author(s): 小川泰信、上野玄太、I. Haggstrom
  • Organizer: 第128回SGEPSS学会
  • Place of Presentation: 沖縄県市町村自治会館(ポスター発表)
  • Year and Date: 2010-11-02
• [Presentation] EISCATスヴァールバルレーダーにより観測されたイオン上昇流とイオン音波擾乱の関係:IPY連続観測データによる統計解析結果 (2010)
  • Author(s): 小川泰信、S. C. Buchert、I. Haggstrom、藤井良一、野澤悟徳、宮岡宏
  • Organizer: 国際極年2007-2008シンポジウム
  • Place of Presentation: 日本学術会議講堂(ポスター発表)
  • Year and Date: 2010-03-01
• [Presentation] EISCAT observations during the International Polar Year (2009)
  • Author(s): Ogawa, Y., H. Miyaoka, R. Fujii, S. Nozawa, and S. Oyama
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 20090500
• [Presentation] Ion upflow and downflow in the cusp and polar cap, Dayside Cusp and Polar Cap Ionosphere : Present knowledge and future planning (2009)
  • Author(s): Ogawa, Y.
  • Organizer: Oslo
  • Place of Presentation: Norway
  • Year and Date: 20090423-24
• [Presentation] Ion upflows and naturally enhanced ion-acoustic lines seen in the IPY ESR continuous run (2009)
  • Author(s): Ogawa, Y., S. C. Buchert, I. Haggstrom, H. Miyaoka, R. Fujii, S. Nozawa
  • Organizer: the International EISCAT Workshop
  • Place of Presentation: Tromso Norway
  • Year and Date: 2009-08-04
• [Remarks]
  • URL: http://polaris.nipr.ac.jp/～yogawa/