Investigation of creation and transport mechanisms of energetic ions in deep inner magnetosphere and their dependence on ion species

• Project/Area Number: 25287127
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Kyoto University
• Principal Investigator: Nose Masahito 京都大学, 理学(系)研究科(研究院), 助教 (90333559)
• Co-Investigator(Kenkyū-buntansha): KEIKA Kunihiro 名古屋大学, 宇宙地球環境研究所, 特任助教 (10719454) ; MIYASHITA Yukinaga 名古屋大学, 宇宙地球環境研究所, 特任助教 (20435811) ; NOMURA Reiko 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (30637690) ; NAKANO Shinya 統計数理研究所, モデリング研究系, 助教 (40378576) ; OBANA Yuki 大阪電気通信大学, 工学部, 講師 (50398096) ; SHOJI Masafumi 名古屋大学, 宇宙地球環境研究所, 特任助教 (80722082)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000); Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2013: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
• Keywords: リングカレント / イオン組成 / 磁気嵐 / サブストーム / 酸素イオントーラス / 内部磁気圏

Outline of Final Research Achievements

The inner magnetosphere, that is, the near-Earth space where the weather satellite "Himawari" and the GPS satellites are flying, is filled with plasma consisting of charged particles. The dominant component of plasma in the inner magnetosphere is proton during ordinary times, whereas it becomes O+ ion once geomagnetic storms occur. In this study, we investigated the cause of the ion composition change, using data obtained by scientific satellites surveying the inner magnetosphere. It was found that O+ ions are directly flowing into the inner magnetosphere and they are accelerated locally and selectively by electromagnetic field disturbances accompanying with magnetic field dipolarization.

Research Products

• [Int'l Joint Research] University of Iowa/University of New Hampshire/Los Alamos National Laboratory(米国)
• [Journal Article] Long-term variations in the plasma sheet ion composition and substorm occurrence over 23 years (2016)
  • Author(s): Nose, M
  • Journal Title: Geosci. Lett. Volume: 3 Issue: 1 Pages: 1-8
  • DOI: 10.1186/s40562-015-0033-0
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Pulsating proton aurora caused by rising tone Pc1 waves (2016)
  • Author(s): Nomura, R., K. Shiokawa, Y. Omura, Y. Ebihara, Y. Miyoshi, K. Sakaguchi, Y. Otsuka, and M. Connors
  • Journal Title: J. Geophys. Res. Space Physics Volume: 121 Issue: 2 Pages: 1608-1618
  • DOI: 10.1002/2015ja021681
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations (2015)
  • Author(s): M. Nose, S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, C. W. Smith, R. J. MacDowall, S. Nakano, G. D. Reeves, H. E. Spence, and B. A. Larsen
  • Journal Title: Journal of Geophysical Research Volume: 120 Issue: 2 Pages: 1182-1196
  • DOI: 10.1002/2014ja020593
  • Peer Reviewed
• [Journal Article] Responses of different ion species to fast plasma flows and local dipolarization in the plasma sheet (2015)
  • Author(s): Ohtani, S., M. Nose, Y. Miyashita, and A. T. Y. Lui
  • Journal Title: J. Geophys. Res., Space Physics Volume: 120 Issue: 1 Pages: 187-200
  • DOI: 10.1002/2014ja020517
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spatial structure and temporal evolution of energetic particle injections in the inner magnetosphere during the 14 July 2013 substorm event (2015)
  • Author(s): Gkioulidou, M., S. Ohtani, D. G. Mitchell, A. Ukhorskiy, G. D. Reeves, D. L. Turner, J. W. Gjerloev, M. Nose, K. Koga, J. V. Rodriguez, L. J. Lanzerotti
  • Journal Title: J. Geophys. Res. Volume: 120 Issue: 3 Pages: 1-15
  • DOI: 10.1002/2014ja020872
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Multipoint observation of the response of the magnetosphere and ionosphere related to the sudden impulse event on 19 November 2007 (2015)
  • Author(s): Segarra, A., M. Nose, J. J. Curto, and T. Araki
  • Journal Title: J. Space Weather Space Clim. Volume: 5 Pages: 1-15
  • DOI: 10.1051/swsc/2015016
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Sub-packet structures in EMIC triggered emissions observed by the THEMIS probes (2015)
  • Author(s): Nakamura, S., Y. Omura, M. Shoji, M. Nose, D. Summers, and V. Angelopoulos
  • Journal Title: Journal of Geopysical Research, Space Physics Volume: 120 Issue: 9 Pages: 7318-7330
  • DOI: 10.1002/2014ja020764
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] What caused the rapid recovery of the Carrington storm? (2015)
  • Author(s): K. Keika, R. Kataoka, and Y. Ebihara
  • Journal Title: Earth, Planets and Space Volume: 67 Issue: 1 Pages: 1-12
  • DOI: 10.1186/s40623-015-0234-y
  • NAID: 120005758188
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Comment on “Where is the magnetic energy for the expansion phase of auroral substorms accumulated?” by S.-I. Akasofu (2015)
  • Author(s): Miyashita, Y., S. Machida, Y. Kamide, and A. Nishida
  • Journal Title: J. Geophys. Res. Volume: 120 Issue: 5 Pages: 3827-3828
  • DOI: 10.1002/2014ja020841
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Resonance Structure and Mode Transition of Quarter-Wave ULF Pulsations Around the Dawn Terminator (2015)
  • Author(s): Y. Obana, C. L. Waters, M. D. Sciffer, F. W. Menk, R. L. Lysak, K. Shiokawa, A. W. Hurst, T. Petersen
  • Journal Title: J. Geophys. Res. - Space Physics Volume: 不明 Issue: 6 Pages: 4194-4212
  • DOI: 10.1002/2015ja021096
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Magnetic fluctuations embedded in dipolarization inside geosynchronous orbit and their associated selective acceleration of O+ ions (2014)
  • Author(s): Nose, M., K. Takahashi, K. Keika, L. M. Kistler, K. Koga, H. Koshiishi, H. Matsumoto, M. Shoji, Y. Miyashita, and R. Nomura
  • Journal Title: J. Geophys. Res. Volume: 119 Issue: 6 Pages: 1-17
  • DOI: 10.1002/2014ja019806
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electromagnetic ion cyclotron rising tone emissions observed by THEMIS probes outside the plasmapause (2014)
  • Author(s): Nakamura, S., Y. Omura, S. Machida. M. Shoji, et al.
  • Journal Title: Journal of Geophysical Research Volume: 119 Issue: 3 Pages: 1874-1886
  • DOI: 10.1002/2013ja019146
  • Peer Reviewed / Open Access
• [Journal Article] Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variation (2014)
  • Author(s): Shinbori, A., Y. Koyama, M. Nose, T. Hori, Y. Otsuka, and A. Yatagai
  • Journal Title: Earth Planet. Space Volume: 66 Issue: 1 Pages: 1-20
  • DOI: 10.1186/s40623-014-0155-1
  • NAID: 120005530957
  • Peer Reviewed / Open Access
• [Journal Article] Initial Measurements of O-ion and He-ion Decay Rates Observed from the Van Allen Probes RBSPICE Instrument (2014)
  • Author(s): Gerrard, A., L. J. Lanzerotti, M. Gkioulidou, D. G. Mitchell, J. Manweiler, J. Bortnik, and K. Keika
  • Journal Title: J. Geophys. Res. Volume: 119 Issue: 11 Pages: 8813-8819
  • DOI: 10.1002/2014ja020374
  • Peer Reviewed / Open Access
• [Journal Article] Estimation of the helium ion density distribution in the plasmasphere based on a single IMAGE/EUV image (2014)
  • Author(s): S. Nakano, M.-C. Fok, P. C. Brandt, and T. Higuchi
  • Journal Title: Journal of Geophysical Research Volume: 119 Issue: 5 Pages: 3724-3740
  • DOI: 10.1002/2013ja019733
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Estimation of temporal evolution of the helium plasmasphere based on a sequence of IMAGE/EUV images (2014)
  • Author(s): S. Nakano, M.-C. Fok, P. C. Brandt, and T. Higuchi
  • Journal Title: Journal of Geophysical Research Volume: 119 Issue: 5 Pages: 3708-3723
  • DOI: 10.1002/2013ja019734
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Statistical visualization of the Earth’s magnetotail and the implied mechanism of substorm triggering based on superposed-epoch analysis of THEMIS data (2014)
  • Author(s): Machida, S., Y. Miyashita, A. Ieda, M. Nosé, V. Angelopoulos, and J. P. McFadden
  • Journal Title: Annales Geophysicae Volume: 32 Issue: 2 Pages: 99-111
  • DOI: 10.5194/angeo-32-99-2014
  • Peer Reviewed
• [Journal Article] Assessment of the Auroral Electrojet index performance under various geomagnetic conditions (2013)
  • Author(s): Liou, K., K. Takahashi, B. J. Anderson, M. Nose, and T. Iyemori
  • Journal Title: J. Atmos. Solar-Terr. Phys. Volume: 92 Pages: 31-36
  • DOI: 10.1016/j.jastp.2012.09.017
  • Peer Reviewed
• [Journal Article] Barometric and magnetic observations of vertical acoustic resonance and resultant generation of field-aligned current associated with earthquakes (2013)
  • Author(s): Iyemori, T., Y. Tanaka, Y. Odagi, Y. Sano, M. Takeda, M. Nose, M. Utsugi, D. Rosales, E. Choque, J. Ishitsuka, S. Yamanaka, K. Nakanishi, M. Matsumura, and H. Shinagawa
  • Journal Title: Earth Planet. Space Volume: 65 Issue: 8 Pages: 901-909
  • DOI: 10.5047/eps.2013.02.002
  • Peer Reviewed
• [Presentation] Van Allen Probes observations of dipolarization and its associated O+ flux variations in the inner magnetosphere (2015)
  • Author(s): Nose, M., K. Keika, C. A. Kletzing, C. W. Smith, R. J. MacDowall, G. D. Reeves, and H. Spence
  • Organizer: 2015 AGU Fall Meeting
  • Place of Presentation: アメリカ・サンフランシスコ
  • Year and Date: 2015-12-18
  • Int'l Joint Research / Invited
• [Presentation] Van Allen Probes observations of dipolarization and its associated O+ flux variations in the inner magnetosphere (2015)
  • Author(s): Nose, M., K. Keika, C. A. Kletzing, C. W. Smith, R. J. MacDowall, G. D. Reeves, and H. Spence
  • Organizer: 第138回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 東京都・文京区
  • Year and Date: 2015-11-01
• [Presentation] Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations (2015)
  • Author(s): Nose, M., S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, C. W. Smith, R. J. MacDowall, S. Nakano, G. D. Reeves, H. E. Spence, and B. A. Larsen
  • Organizer: Asia Oceania Geosciences Society 12th Annual Meeting
  • Place of Presentation: シンガポール・シンガポール
  • Year and Date: 2015-08-07
  • Int'l Joint Research / Invited
• [Presentation] Long-term variations of ion composition in the plasma sheet and its possible effect on substorm occurrence (2015)
  • Author(s): Nose, M.
  • Organizer: Asia Oceania Geosciences Society 12th Annual Meeting
  • Place of Presentation: シンガポール・シンガポール
  • Year and Date: 2015-08-05
  • Int'l Joint Research / Invited
• [Presentation] Long-term variations of ion composition in the plasma sheet and its possible effect on substorm occurrence (2015)
  • Author(s): Nose, M.
  • Organizer: IUGG 2015
  • Place of Presentation: チェコ・プラハ
  • Year and Date: 2015-06-26
  • Int'l Joint Research / Invited
• [Presentation] Estimation of magnetospheric plasma ion composition for 1956-1975 by using high-time resolution geomagnetic field data created from analog magnetograms (2015)
  • Author(s): Nose, M., K. Yamamoto, N. Mashiko, and S. Nagamachi
  • Organizer: IUGG 2015
  • Place of Presentation: チェコ・プラハ
  • Year and Date: 2015-06-25
  • Int'l Joint Research
• [Presentation] Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations (2015)
  • Author(s): Nose, M., S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, C. W. Smith, R. J. MacDowall, S. Nakano, G. D. Reeves, H. E. Spence, and B. A. Larsen
  • Organizer: IUGG 2015
  • Place of Presentation: チェコ・プラハ
  • Year and Date: 2015-06-24
  • Int'l Joint Research / Invited
• [Presentation] Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations (2015)
  • Author(s): M. Nose, S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, C. W. Smith, R. J. MacDowall, S. Nakano, G. D. Reeves, H. E. Spence, and B. A. Larsen
  • Organizer: 26th General Assembly of the International Union of Geodesy and Geophysics
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-06-24
  • Invited
• [Presentation] Van Allen Probes observations of dipolarization and ion acceleration in the inner magnetosphere (2015)
  • Author(s): Nose, M., K. Keika, C. A. Kletzing, C. W. Smith, R. J. MacDowall, and G. D. Reeves
  • Organizer: 日本地球惑星科学連合2015年大会
  • Place of Presentation: 茨城県・幕張
  • Year and Date: 2015-05-26
  • Int'l Joint Research
• [Presentation] Van Allen Probes observations of the oxygen torus in the inner magnetosphere (2015)
  • Author(s): Nose, M.
  • Organizer: Korean Space Science Society 2015 Spring Meeting
  • Place of Presentation: 韓国・太白
  • Year and Date: 2015-04-30
  • Int'l Joint Research / Invited
• [Presentation] Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations (2015)
  • Author(s): M. Nose, S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, C. W. Smith, R. J. MacDowall, S. Nakano, G. D. Reeves, H. E. Spence, and B. A. Larsen
  • Organizer: Korea Space Science Society spring meeting
  • Place of Presentation: Taebaek, Korea
  • Year and Date: 2015-04-30
  • Invited
• [Presentation] Van Allen Probes衛星観測による内部磁気圏での酸素イオントーラス形成について (2015)
  • Author(s): 能勢正仁
  • Organizer: 太陽地球系宇宙プラズマにおける重イオンの輸送・加熱・加速過程研究会
  • Place of Presentation: 愛知県・名古屋
  • Year and Date: 2015-01-29
  • Invited
• [Presentation] Van Allen Probes observations of the oxygen torus in the inner magnetosphere (2014)
  • Author(s): Nose, M.
  • Organizer: Seminar at Indian Institute of Geomagnetism
  • Place of Presentation: Mumbai, India
  • Year and Date: 2014-11-10
  • Invited
• [Presentation] Long-term variations of substorm occurrence rate estimated from geomagnetic observations over 30 years (2014)
  • Author(s): Nose, M.
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: 北海道・札幌
  • Year and Date: 2014-07-31
  • Invited
• [Presentation] Swarm and Van Allen Probes conjunction observations of EMIC waves and their effects on O+ density enhancement in inner magnetosphere (2014)
  • Author(s): Nose, M., S. Nakamura, T. Iyemori, C. A. Kletzing, C. W. Smith, and R. J. MacDowall
  • Organizer: 3rd Swarm Science Meeting
  • Place of Presentation: Copenhagen, Denmark
  • Year and Date: 2014-06-19
• [Presentation] Van Allen Probes observations of oxygen torus in the inner magnetosphere (2014)
  • Author(s): Nose, M., K. Keika, C. A. Kletzing, C. W. Smith, R. J. MacDowall, W. S. Kurth, and S. De Pascuale
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: 神奈川県・横浜
  • Year and Date: 2014-04-28
• [Presentation] Magnetic fluctuations embedded in dipolarization inside geosynchronous orbit and their possible role in selective acceleration of O+ ions
  • Author(s): Nose, M., K. Takahashi, K. Keika, K. Koga, H. Koshiishi, and H. Matsumoto
  • Organizer: 日本地球惑星科学連合2013年大会
  • Place of Presentation: 千葉県・幕張
  • Invited
• [Presentation] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O+-rich ring current formation
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J. Singer
  • Organizer: Asia Oceania Geosciences Society 10th Annual Meeting
  • Place of Presentation: Brisbane, Australia
  • Invited
• [Presentation] Long-term variations of substorm occurrence rate estimated from geomagnetic observations over 30 years
  • Author(s): Nose, M.
  • Organizer: IAGA 2013
  • Place of Presentation: Merida, Mexico
  • Invited
• [Presentation] Magnetic fluctuations embedded in dipolarization inside geosynchronous orbit and their possible role in selective acceleration of O+ ions
  • Author(s): Nose, M., K. Takahashi, K. Keika, K. Koga, H. Koshiishi, and H. Matsumoto
  • Organizer: IAGA 2013
  • Place of Presentation: Merida, Mexico
• [Presentation] Present status and future perspective of AE/Dst index derivation
  • Author(s): Nose, M., T. Iyemori, A. Janzhura, O. Troshichev, J. Matzka, G. Bjornsson, T. Saemundsson, G. Schwarz, Y. Ishii, P. Kotze, and H. Theron
  • Organizer: 2nd AOSWA Workshop
  • Place of Presentation: Kunming, China
  • Invited
• [Presentation] Search for oxygen torus in the inner magnetosphere: Van Allen Probes observations
  • Author(s): Nosé, M., S. Oimatsu, K. Keika, C. A. Kletzing, C. W. Smith, R. J. MacDowall, W. S. Kurth, and S. De Pascuale
  • Organizer: 2013 AGU Fall Meeting
  • Place of Presentation: San Francisco
• [Remarks] ● 研究代表者のホームページ
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose
• [Remarks] ● Home page of Substorm Swift Search (S^3)
  • URL: http://s-cubed.info
• [Remarks] ◆ ホームページ(研究代表者)
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose
• [Remarks] ◆ Home Page of Substorm Swift Search
  • URL: http://s-cubed.info
• [Remarks] ホームページ(研究代表者)
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose/
• [Remarks] Home Page of Substorm Swift Search
  • URL: http://s-cubed.info/