Study on development and decay of inner magnetospheric disturbances by using ground and satellite multipoint observations

• Project/Area Number: 22740322
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Space and upper atmospheric physics
• Research Institution: Kyoto University
• Principal Investigator: NOSE Masahito 京都大学, 大学院・理学研究科, 助教 (90333559)
• 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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 地球惑星磁気圏 / 磁気嵐 / 内部起因磁場 / サブストーム / リングカレント / 高エネルギー酸素イオン / 粒子加速 / 酸素イオントーラス / 磁場双極子化 / 内部磁気圏 / イオン組成 / 非断熱的加速 / Dst指数

Research Abstract

The field variations during geomagnetic storms are produced by both the magnetospheric currents such as the ring current and the induced currents inside the Earth’s interior. Previous studies have reported that the magnetic field variations due to the induced currents are about 25% of the Dst index; but we found that the Earth-induced current contribution varies between 20% and 55%, and depends on the rate of change of the Dst index. With regard to ring current development, we suggest that the non-adiabatic acceleration of preexisting cold ions by magnetic fluctuations associated with dipolarization plays a more important role than the energetic particle injection from the plasma sheet into the inner magnetosphere.

Research Products

• [Journal Article] Assessment of the Auroral Electrojet index performance under various geomagnetic conditions (2013)
  • Author(s): Liou, K. et al. (M. Nose、第4著者)
  • Journal Title: J. Atmos. Solar-Terr. Phys. Volume: 92 Pages: 31-36
  • Peer Reviewed
• [Journal Article] Revisiting the role of magnetic field fluctuations in nonadiabatic acceleration of ions duringdipolarization (2012)
  • Author(s): Nose, M., Y. Ono, S. P. Christon, and A. T. Y. Lui
  • Journal Title: ournal of Geophysical Research Volume: 118 Issue: A2
  • DOI: 10.1029/2012ja017518
  • Peer Reviewed
• [Journal Article] Wp index: A new substorm index derived from high-resolution geomagnetic field data at low latitude (2012)
  • Author(s): Nose, M., T. Iyemori, L. Wang, 他13名
  • Journal Title: Space Weather Volume: 117 Issue: 8
  • DOI: 10.1029/2012sw000785
  • NAID: 120004965945
  • Peer Reviewed
• [Journal Article] A statistical study of energy release and transport midway between themagnetic reconnection and initial dipolariza- tion regions in the near-Earth magneto- tail (2012)
  • Author(s): Miyashita, Y., S. Machida, M. Nose, K. Liou, Y. Saito, and W. R. Paterson
  • Journal Title: Journal of Geophysical Research Volume: 117 Issue: A11
  • DOI: 10.1029/2012ja017925
  • Peer Reviewed
• [Journal Article] Magnetic field depression at the Earth's surface during ENA emission fade-out in the inner magnetosphere (2011)
  • Author(s): Nose, M., S. Ohtani, P. C:son Brandt, T. Iyemori, K. Keika, and D.-Y. Lee
  • Journal Title: Journal of Geophysical Research Volume: 116 Issue: A6 Pages: 1-16
  • DOI: 10.1029/2010ja015799
  • Peer Reviewed
• [Journal Article] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O+-rich ring current formation (2011)
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J. Singer
  • Journal Title: J. Geophys. Res. Volume: 116
  • NAID: 120003551147
  • Peer Reviewed
• [Journal Article] Modeling the super storm in November 2003 (2011)
  • Author(s): Fok, M.-C., T. E. Moore, S. P. Slinker, J. A. Fedder, D. C. Delcourt, M. Nose, and S.-H. Chen
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A1 Pages: n/a-n/a
  • DOI: 10.1029/2010ja015720
  • Peer Reviewed
• [Journal Article] Magnetic observatory data and metadata: Types and availability, in Geomagnetic Observations and Models (2011)
  • Author(s): Reay, S. J., D. C. Herzog, S. Alex, E. P. Kharin, S. McLean, M. Nose, and N. A. Sergeyeva
  • Journal Title: IAGA Special Sopron Book Series Volume: Vol. 5 Pages: 149-181
  • DOI: 10.1007/978-90-481-9858-0_7
  • ISBN: 9789048198573, 9789048198580
  • Peer Reviewed
• [Journal Article] Geomagnetic indices, in Geomagnetic Observations and Models (2011)
  • Author(s): Menvielle, M., T. Iyemori, A. Marchaudon, and M. Nose
  • Journal Title: IAGA Special Sopron Book Series Volume: Vol. 5 Pages: 183-228
  • DOI: 10.1007/978-90-481-9858-0_8
  • ISBN: 9789048198573, 9789048198580
  • Peer Reviewed
• [Journal Article] Evolution of ring current ion energy spectra during the storm recovery phase: Implication for dominant ion loss processes (2011)
  • Author(s): Keika, K., P. C. Brandt, M. Nose, and D. G. Mitchell
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A5
  • DOI: 10.1029/2010ja015628
  • Peer Reviewed
• [Journal Article] Magnetic local time dependence of geomagnetic disturbances contributing to the AU and AL indices (2011)
  • Author(s): Tomita, S., M. Nose, T. Iyemori, H. Toh, M. Takeda, J. Matzka, G. Bjornsson, T. Saemundsson, A. Janzhura, O. Troshichev, and G. Schwarz
  • Journal Title: Ann. Geophys Volume: 29 Issue: 4 Pages: 673-678
  • DOI: 10.5194/angeo-29-673-2011
  • NAID: 120005593634
  • Peer Reviewed
• [Journal Article] Pi2 pulsations in the inner magnetosphere simultaneously observed by the Active Magnetospheric Particle Tracer Explorers/Charge Composition Explorer and Dynamics Explorer 1 satellites (2011)
  • Author(s): Teramoto, M., K. Takahashi, M. Nose, D.-H. Lee, and P. R. Sutcliffe
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A7 Pages: n/a-n/a
  • DOI: 10.1029/2010ja016199
  • Peer Reviewed
• [Journal Article] Energetic O+ and H+ ions in the plasma sheet: Implications for the transport of ionospheric ions (2011)
  • Author(s): Ohtani,S., M. Nose, S. P. Christon, and A. T. Y. Lui
  • Journal Title: J. Geophys. Res Volume: 116
  • Peer Reviewed
• [Journal Article] Geomagnetism and the orientation of temples in Thailand (2011)
  • Author(s): Iyemori, T., M. Hashizume, A. Saito, M. Nose, N. Choosakul, T. Tsuda, Y. Odagi
  • Journal Title: J. Siam Soc Volume: 99 Pages: 139-149
  • Peer Reviewed
• [Journal Article] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O-rich ring current formation (2011)
  • Author(s): Nose, M., et al
  • Journal Title: Journal of Geophysical Research Volume: 116 Pages: 1-14
  • NAID: 120003551147
  • Peer Reviewed
• [Journal Article] Magnetic field depression at the Earth's surface during ENA emission fade-out in the inner magnetosphere (2011)
  • Author(s): Nose, M., et al.
  • Journal Title: J.Geophys.Res. Volume: 116
  • Peer Reviewed
• [Journal Article] Excitation mechanism of lowlatitude Pi2 pulsations: Cavity mode resonance or BBF-driven process? (2010)
  • Author(s): Nose, M
  • Journal Title: Journal of Geophysical Research Volume: 115 Issue: A7
  • DOI: 10.1029/2009ja015205
  • Peer Reviewed
• [Journal Article] Magnetic field dipolarization in the deep inner magnetosphere and its role in development of O+-rich ring current (2010)
  • Author(s): Nose, M., H. Koshiishi, H. Matsumoto, P. C:son Brandt, K. Keika, K. Koga, T. Goka, and T. Obara
  • Journal Title: Journal of Geophysical Research Volume: 115 Issue: A9
  • DOI: 10.1029/2010ja015321
  • Peer Reviewed
• [Journal Article] A new generation mechanism of butterfly pitch angle distributions of energetic ions: Multiple pitch angle scattering in the stretched magnetic field (2010)
  • Author(s): Shibahara, K., M. Nose, T. Fritz, and J. Niehof
  • Journal Title: J. Geophys. Res. Volume: 115 Issue: A7
  • DOI: 10.1029/2010ja015281
  • Peer Reviewed
• [Journal Article] Pressure changes associated with substorm dipolarization in the near-Earth plasma sheet (2010)
  • Author(s): Miyashita, Y., S. Machida, A. Ieda, D. Nagata, Y. Kamide, M. Nose, K. Liou, T. Mukai, S. P. Christon, C. T. Russell, I. Shinohara, and Y. Saito
  • Journal Title: J. Geophys. Res. Volume: 115 Issue: A12
  • DOI: 10.1029/2010ja015608
  • Peer Reviewed
• [Journal Article] Multipoint observation of fast mode waves trapped in the dayside plasmasphere (2010)
  • Author(s): Takahashi, K., J. Bonnell, K.-H. Glassmeier, V. Angelopoulos, H. J. Singer, P. J. Chi, R. E. Denton, Y. Nishimura, D.-H Lee, M. Nose, and W. Liu
  • Journal Title: J. Geophys. Res Volume: 115 Issue: A12
  • DOI: 10.1029/2010ja015956
  • Peer Reviewed
• [Journal Article] Mass-dependent evolution of ENA energy spectra during storm-time substorms: Implication for O+nonadiabatic acceleration (2010)
  • Author(s): Keika, K., P. C. Brandt, S. Ohtani, D. G. Mitchell, K. Min, M. Nose, T. Obara, H. Koshiishi, H. Matsumoto
  • Journal Title: J. Geophys. Res Volume: 115
  • Peer Reviewed
• [Journal Article] Magnetic field dipolarization in the deep inner magnetosphere and its role in development of O^+-rich ring current (2010)
  • Author(s): Nose, M., et al.
  • Journal Title: J.Geophys.Res. Volume: 115
  • Peer Reviewed
• [Journal Article] Excitation mechanism of low-latitude Pi2 pulsations : Cavity mode resonance or BBF-driven process? (2010)
  • Author(s): Nose, M.
  • Journal Title: J.Geophys.Res. Volume: 115
  • Peer Reviewed
• [Presentation] 磁気嵐中の磁場変動の地球内部起因成分について (2013)
  • Author(s): 能勢正仁
  • Organizer: 平成24年度CA研究会
  • Place of Presentation: 茨城県・石岡市柿岡
• [Presentation] サブストーム(オーロラ嵐)の発生頻度と太陽活動の長期変動について (2013)
  • Author(s): 能勢正仁
  • Organizer: 太陽研究シンポジウム2012
  • Place of Presentation: 東京都・手島区池袋
  • Invited
• [Presentation] son Brandt, Dipolarization in the deep inner magnetosphere and selective acceleration of O+ ions (2012)
  • Author(s): Nose., M., K. Takahashi, K. Keika, L. Kistler, H. Koshiishi, H. Matsumoto, K. Koga, and P. C
  • Organizer: 第132回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 北海道・札幌(Oral).
• [Presentation] A new substorm index derived from high-resolution geomagnetic field data at low latitude (2012)
  • Author(s): Nose., M., T. Iyemori, L. Wang, A. Hitchman, J. Matzka, M. Feller, S. Egdorf, S. Gilder, N. Kumasaka, K. Koga, H. Matsumoto, H. Koshiishi, G. Cifuentes-Nava, J. J. Curto, A. Segarra, and C. Celik, Wp index
  • Organizer: XVth IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing
  • Place of Presentation: San Fernando, Cadiz, Spain (Poster).
• [Presentation] Dipolarization in the deep inner magnetosphere and selective acceleration of O+ ions (2012)
  • Author(s): Nose., M.
  • Organizer: 第132回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 北海道・札幌
• [Presentation] Evaluation of the earth-induced current contribution for a precise prediction of the Dst index (2011)
  • Author(s): Nose, M.
  • Organizer: 2011 AGU Fall Meeting
  • Place of Presentation: サンフランシスコ(米国)
  • Year and Date: 2011-12-07
• [Presentation] Oxygen torus in the deep inner magnelosphere and its contribution to recurrent process of O-rich ring current formation (2011)
  • Author(s): Nose, M., et al
  • Organizer: 第130回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O-rich ring current formation (2011)
  • Author(s): Nose, M., et al
  • Organizer: Workshop on Physical Processes in Non-Uniform Finite Magnetospheric Systems
  • Place of Presentation: 九州大学(福岡県)
  • Year and Date: 2011-09-14
• [Presentation] Temporal variation of the Earth-induced current contribution to the Dst index (2011)
  • Author(s): Nose, M.
  • Organizer: IUGG 2011
  • Place of Presentation: メルボルン(オーストラリア)
  • Year and Date: 2011-07-05
• [Presentation] Search for "oxygen torus" in the deep inner magnetosphere-Possible source of O-rich ring current (2011)
  • Author(s): Nose, M., et al
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ(千葉県)(招待講演)
  • Year and Date: 2011-05-27
• [Presentation] Evaluation of the earth-induced current contribution for a precise prediction of the Dst index (2011)
  • Author(s): Nose, M.
  • Organizer: 2011 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA (Poster)
• [Presentation] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O+-rich ring current formation (2011)
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J. Singer
  • Organizer: 第130回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 兵庫県・神戸(Oral).
• [Presentation] Oxygen torus in the deep inner magnetosphere and its contribution to recurrent process of O+-rich ring current formation (2011)
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J. Singer
  • Organizer: Workshop on Physical Processes in Non-Uniform Finite Magnetospheric Systems
  • Place of Presentation: Fukuoka (Poster).
• [Presentation] Temporal variation of the Earth-induced current contribution to the Dst index (2011)
  • Author(s): Nose, M.
  • Organizer: IUGG XXV 2011
  • Place of Presentation: Melbourne, Australia (Oral).
• [Presentation] Singer Search for "oxygen torus" in the deep inner magnetosphere - Possible source of O+-rich ring current (2011)
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県・幕張 (Oral, Invited).
• [Presentation] Detection of the oxygen torus in the inner magnetosphere using toroidal Alfven waves (2010)
  • Author(s): Nose, M., et al.
  • Organizer: 2010 AGU Fall Meeting
  • Place of Presentation: 米国・サンフランシスコ
  • Year and Date: 2010-12-15
• [Presentation] Detection of the oxygen torus in the inner magnetosphere using toroidal Alfven waves (2010)
  • Author(s): Nose, M., K. Takahashi, R. R. Anderson, and H. J. Singer
  • Organizer: 2010 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA (Poster)
• [Presentation] Temporal variation of the Earth-induced current contribution to the Dst index (2010)
  • Author(s): 能勢正仁
  • Organizer: 第128回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 沖縄県・那覇(Oral)
• [Presentation] Magnetic field dipolarization in the deep inner magnetosphere and its role in development of O+-rich ring current (2010)
  • Author(s): 能勢正仁、越石英樹、松本晴久、P. C:son Brandt、桂華邦裕、古賀清一、五家建夫、小原隆博
  • Organizer: 第128回地球電磁気・地球惑星圏学会総会
  • Place of Presentation: 沖縄県・那覇 (Poster).
• [Remarks]
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose
• [Remarks]
  • URL: http://s-cubed.info
• [Remarks] 研究者のホームページ
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose
• [Remarks] 新しいサブストーム指数(Wp指数)のホームページ
  • URL: http://s-cubed.info
• [Remarks]
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose
• [Remarks]
  • URL: http://wdc.kugi.kyoto-u.ac.jp/~nose