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Study of geospace storms based on a new observation-based model of the inner magnetosphere

Research Project

Project/Area Number 20340134
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionNagoya University

Principal Investigator

SEKI Kanako  名古屋大学, 太陽地球環境研究所, 准教授 (20345854)

Co-Investigator(Renkei-kenkyūsha) MIYOSHI Yoshizumi  名古屋大学, 太陽地球環境研究所, 准教授 (10377781)
AMANO Takanobu  東京大学, 理学系研究科, 助教 (00514853)
SAITO Shinji  電磁波計測研究所, 研究員 (60528165)
UMEDA Takayuki  名古屋大学, 太陽地球環境研究所, 助教 (40432215)
MATSUMOTO Yosuke  千葉大学, 理学研究科, 特任助教 (20397475)
EBIHARA Yusuke  京都大学, 生存圏研究所, 准教授 (80342616)
TAKADA Taku  高知工業高等専門学校, 電気情報工学科, 准教授 (80455469)
VASSILIS Angelopoulos  カリフォルニア大学ロサンゼルス校(UCLA), 宇宙地球科学科, 教授
Project Period (FY) 2008 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywords太陽地球システム / 宇宙天気 / 磁気嵐(宇宙嵐) / リングカレント / 内部磁気圏 / ドリフト運動論近似 / マクスウェル方程式 / ボルツマン方程式 / 放射線帯 / 粒子加速
Research Abstract

A new self-consistent and kinetic model for ring current particles in the inner magnetosphere is presented. A closed set of nonlinear time evolution equations is derived that incorporates kinetic particle dynamics and self-consistent development of the electromagnetic field. The particle transport is described by a five-dimensional collisionless drift kinetic equation, in which particle trajectories are approximated by their guiding centers under the influence of a time-dependent electromagnetic field. The time evolution of the electromagnetic field follows the Maxwell equations with the feedback from particles through electric currents. A numerical simulation code solving the system of equations in a global inner magnetosphere in three spatial dimensions(or five dimensions in phase space) is developed. It is demonstrated that the propagation of low-frequency plasma waves can successfully be described by the developed model. It is also found that the self-consistent coupling could affect the transport of energetic particles especially at low energies as well as the intensity and spatial distribution of field-aligned currents. These preliminary results suggest the importance of the self-consistent coupling in the global development of geomagnetic storms. Our approach extends the capability of modeling storm time phenomena occurring in the inner magnetosphere. These include sudden commencements(SCs), substorms, and ULF waves, and other associated phenomena.

Report

(6 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report   Self-evaluation Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (48 results)

All 2012 2011 2010 2009 2008 Other

All Journal Article (18 results) (of which Peer Reviewed: 18 results) Presentation (26 results) Remarks (4 results)

  • [Journal Article] Self-consistent Kinetic Numerical Simulation Model for Ring Current Particles in the Earth's Inner Magnetosphere2011

    • Author(s)
      Amano, T., K. Seki, Y. Miyoshi, T. Umeda, Y. Matsumoto, Y. Ebihara, and S. Saito
    • Journal Title

      J. Geophys. Res.

      Volume: Vol.116

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Outer radiation belt boundary location relative to the magnetopause : Implications for magnetopause shadowing2011

    • Author(s)
      Matsumura, C., Y. Miyoshi, K. Seki, S. Saito, V. Angelopoulos, and J. Koller
    • Journal Title

      J. Geophys. Res.

      Volume: 116 Issue: A6 Pages: n/a-n/a

    • DOI

      10.1029/2011ja016575

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cross-Scale Coupling in the Auroral Acceleration Region2011

    • Author(s)
      C.C.Chaston, K.Seki, T.Sakanoi, K.Asamura, M.Hirahaia, C.W.Carlson
    • Journal Title

      Geophysical Research Letters

      Volume: 38 Issue: 20 Pages: n/a-n/a

    • DOI

      10.1029/2011gl049185

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evidence for a multi-scale aurora2011

    • Author(s)
      C.C.Chaston, K.Seki, T.Sakanoi, K.Asamura, M.Hirahara
    • Journal Title

      Dynamic Magnetosphet, Springer Book

      Pages: 271-280

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Self-consistent Kinetic Numerical Simulation Model for Ring Current Particles in the Earth's Inner Magnetosphere2011

    • Author(s)
      Amano, T., K. Seki, Y. Miyoshi, T. Umeda, Y. Matsumoto, Y. Ebihara, S. Saito
    • Journal Title

      J.Geophys.Res. Vol.116

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Self-consistent Kinetic Numerical Simulation Model for Ring Current Particles in the Earth's Inner Magnetosphere2011

    • Author(s)
      天野孝伸、関華奈子、三好由純、梅田隆行、松本洋介、海老原祐輔、齊藤愼司
    • Journal Title

      Journal of Geophysical Research

      Volume: 116

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A split in the outer radiation belt by magnetopause shadowing : Test particle simulations2010

    • Author(s)
      S. Saito, Y. Miyoshi, and K. Seki
    • Journal Title

      J. Geophys. Res.

      Volume: 115

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] A split in the outer radiation belt by magnetopause shadowing : Test particle simulations2010

    • Author(s)
      S. Saito, Y. Miyoshi, K. Seki
    • Journal Title

      J.Geophys.Res. 115

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Small-Scale Auroral Current Sheet Structuring2010

    • Author(s)
      C.C.Chaston, K.Seki
    • Journal Title

      Journal of Geophysical Research

      Volume: 115

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation of a broad plasma turbulent layer by forward and inverse energy cascades of the Kelvin-Helmholtz instability2010

    • Author(s)
      松本洋介、関華奈子
    • Journal Title

      Journal of Geophysical Research

      Volume: 115

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A split in the outer radiation belt by magnetopause shadowing : Test particle simulations2010

    • Author(s)
      齊藤愼司, 三好由純, 関華奈子
    • Journal Title

      Journal of Geophysical Research 115(印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous FAST and Double Star-TC1 observations of broadband electrons during a storm-time substorm2010

    • Author(s)
      中島章光, 塩川和夫, 関華奈子, 他13名
    • Journal Title

      Journal of Geophysical Research 115(印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a magnetohydrodynamic simulation code satisfying the solenoidal magnetic field condition2009

    • Author(s)
      八木学, 関華奈子, 松本洋介
    • Journal Title

      Computer Physics Communications 180

      Pages: 1550-1557

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistical properties of the multiple ion band structures observed by the FAST satellite2008

    • Author(s)
      Y. Yao, K. Seki, Y. Miyoshi, J. P. McFadden, E. J. Lund, and C. W. Carlson
    • Journal Title

      J. Geophys. Res.

      Volume: 113

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Statistical properties of the multiple ion band structures observed by the FAST satellite2008

    • Author(s)
      Y. Yao, K. Seki, Y. Miyoshi, J.P. McFadden, E.J. Lund, C.W. Carlson
    • Journal Title

      J.Geophys.Res. 113

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Statistical properties of the multipleion band structures observed by the FAST satellite2008

    • Author(s)
      姚尭, 関華奈子, 他4名
    • Journal Title

      Journal of Geophysical Research 113

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coordinated EISCAT Svalbard radar and Reimei satellite observations of ion upflows and suprathermal ions2008

    • Author(s)
      小川泰信, 関華奈子, 他10名
    • Journal Title

      Journal of Geophysical Research 113

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Implementation of the CIP algorithm to magnetohydrodynamic simulations2008

    • Author(s)
      松本洋介, 関華奈子
    • Journal Title

      Computer Physics Communications 179

      Pages: 289-296

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Effects of the ring current and plasmasphere on global distribution of ULF waves in the inner magnetosphere based on the GEMSIS-RC model2012

    • Author(s)
      K.Seki, T.Amano, S.Saito, Y.Miyoshi, 他4名
    • Organizer
      Inner Magnetosphere Coupling II workshop
    • Place of Presentation
      ロサンジェルス(米国)
    • Year and Date
      2012-03-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] Self-consistent drift-kinetic numeical ring-current modeling : Five-dimensional Vlasov-Maxwell approach2012

    • Author(s)
      T.Amano, K.Seki, Y.Miyoshi, 他4名
    • Organizer
      Inner Magnetosphere Coupling II workshop
    • Place of Presentation
      ロサンジェルス(米国)
    • Year and Date
      2012-03-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] Effects of the ring current and plasmasphere on ULF waves in the inner magnetosphere based on the GEMSIS-RC and RB models2012

    • Author(s)
      K. Seki, T. Amano, S. Saito, Y. Miyoshi, Y. Matsumoto, T. Umeda, Y. Miyashita, and Y. Ebihara
    • Organizer
      International Conference on Radiation Belts and Space Weather : New Horizon from RBSP Mission
    • Place of Presentation
      テジョン(韓国)(招待講演)
    • Related Report
      2011 Final Research Report
  • [Presentation] Global distribution of ULF waves in the inner magnetosphere based on the GEMSIS-RC model2011

    • Author(s)
      K.Seki, T.Amano, Y.Miyoshi, 他5名
    • Organizer
      AGU fall meeting 2012
    • Place of Presentation
      サンフランシスコ(米国)
    • Year and Date
      2011-12-06
    • Related Report
      2011 Annual Research Report
  • [Presentation] GEMSIS-RCモデルに基づいた内部磁気圏におけるULF波動分布に関する研究2011

    • Author(s)
      関華奈子, 天野孝伸, 三好由純, 松本洋介, 梅田隆行, 齊藤慎司, 宮下幸長, 海老原祐輔
    • Organizer
      地球電磁気・地球惑星圏学会
    • Place of Presentation
      神戸大学
    • Year and Date
      2011-11-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] New models of the inner magnetosphere to investigate high-energy particle variation and the ERG science center2011

    • Author(s)
      Kanako Seki, Y.Miyoshi, Y.Miyashita, T.Amano, 他11名
    • Organizer
      Japan-Korea Space Weather Workshop 2011
    • Place of Presentation
      大田(韓国)
    • Year and Date
      2011-09-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] Study of the inner inagnetospheric response to pressure pulses in the solar wind based on the GEMSIS-RC model2011

    • Author(s)
      K.Seki, T.Amano, Y.Miyoshi, 他5名
    • Organizer
      IUGG General Assembry
    • Place of Presentation
      メルボルン(オーストラリア)(招待演講)
    • Year and Date
      2011-07-06
    • Related Report
      2011 Annual Research Report
  • [Presentation] On roles of the K-H instability in the formation of the cold dense plasma sheet during northward IMF periods : PSD observations and PIC simulation2011

    • Author(s)
      Kanako Seki, Yosuke Matsumoto, Benoit Lavraud, Yoshifumi Saito, Henri Reme
    • Organizer
      IUGG General Assembry
    • Place of Presentation
      メルボルン(オーストラリア)(招待演講)
    • Year and Date
      2011-07-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] Study of the inner magnetospheric response to pressure pulses in the solar wind based on the GEMSIS-RC model2011

    • Author(s)
      関華奈子, 天野孝伸, 三好由純, 他5名
    • Organizer
      日本地球惑星科学連合2011年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2011-05-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] Ring current studies in the GEMSIS project : Development of a new self-consistent simulation model and related observation studies2011

    • Author(s)
      Takanobu Amano, Kanako Seki, Yoshizumi Miyoshi, ほか
    • Organizer
      Conference on Earth sun system Exploration
    • Place of Presentation
      コナ(ハワイ)
    • Year and Date
      2011-01-18
    • Related Report
      2010 Annual Research Report
  • [Presentation] Self-consistent drift-kinetic numerical ring-current modeling : Five-dimensional Vlasov-Maxwell approach2011

    • Author(s)
      T. Amano, K. Seki, 他5名
    • Organizer
      Inner Magnetosphere Coupling II workshop
    • Place of Presentation
      ロサンジェルス(招待講演)
    • Related Report
      2011 Final Research Report
  • [Presentation] Study of the inner magnetospheric response to pressure pulses in the solar wind based on the GEMSIS-RC model2011

    • Author(s)
      K. Seki, 他7名
    • Organizer
      IUGG General Assembry
    • Place of Presentation
      メルボルン
    • Related Report
      2011 Final Research Report
  • [Presentation] Ring current studies in the GEMSIS project : Development of a new self-consistent simulation model and related observation studies2011

    • Author(s)
      K. Seki
    • Organizer
      Conference on Earth Sun System Exploration(ESSE) 2011
    • Place of Presentation
      コナ(招待講演)
    • Related Report
      2011 Final Research Report
  • [Presentation] Ring current studies in the GEMSIS project : Development of a new self-consistent simulation model and related observation studies2011

    • Author(s)
      K.Seki
    • Organizer
      Conference on Earth Sun System Exploration (ESSE) 2011
    • Place of Presentation
      コナ,招待講演
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] GEMSIS-magnetosphere project : New models of the inner magnetosphere to investigate high-energy particle variation during geospace storms and the ERG science center function2010

    • Author(s)
      Kanako Seki, Yoshizumi Miyoshi, Takanobu Amano, ほか
    • Organizer
      米国地球物理学連合2010秋期大会(AGU fallmeeting 2010)
    • Place of Presentation
      モスコーニ会議場(サンフランシスコ)
    • Year and Date
      2010-12-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Development of a fully self-consistent numerical simulation model for ring current dynamics in the inner magnetosphere2010

    • Author(s)
      Takanobu Amano, Kanako Seki, Yoshizumi Miyoshii, ほか
    • Organizer
      米国地球物理学連合2010秋期大会(AGU fall meeting 2010)
    • Place of Presentation
      モスコーニ会議場(サンフランシスコ)
    • Year and Date
      2010-12-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] 宇宙嵐時の高エネルギー粒子変動:ジオスペース環境の実証型モデリングGEMSIS2010

    • Author(s)
      関華奈子、三好由純、天野孝伸, ほか
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2010-05-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] GEMSIS Phase 2 project : Investigation of particle accelerati on and regional couplings during geospace storms2010

    • Author(s)
      Kanako Seki、TakashiKikuchi、Kanya Kusanoi, ほか
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2010-05-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] GEMSIS-Magnetosphere:内部磁気圏高エネルギー粒子環境変動の実証型モデリング2010

    • Author(s)
      関華奈子、三好由純、齊藤慎司, ほか
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2010-05-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] GEMSIS-magnetosphere project : New models of the inner magnetosphere to investigate high-energy particle variation during geospace storms and the ERG science center function2010

    • Author(s)
      K. Seki
    • Organizer
      AGU fall meeting
    • Place of Presentation
      サンフランシスコ
    • Related Report
      2011 Final Research Report
  • [Presentation] GEMSIS-magnetosphere project : New models of the inner magnetosphere to investigate high-energy particle variation during geospace storms and the ERG science center function2010

    • Author(s)
      K.Seki
    • Organizer
      AGU fall meeting 2010
    • Place of Presentation
      サンフランシスコ
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] On the role of variation of solar wind dynamic pressure in terrestrial oxygen outflows : FAST observations2009

    • Author(s)
      関華奈子
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張
    • Related Report
      2011 Final Research Report 2010 Self-evaluation Report
  • [Presentation] On the role of variation of solar wind dynamic pressure in terrestrial oxygen outflows : FAST observations2009

    • Author(s)
      関華奈子, 姚尭, 他5名
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      千葉県 (幕張メッセ)
    • Related Report
      2009 Annual Research Report
  • [Presentation] GEMSIS-Magnetosphere : 地球内部磁気圏の環電流ダイナミクスの運動論的数値モデリング2009

    • Author(s)
      天野孝伸, 関華奈子, 他5名
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      千葉県 (幕張メッセ)
    • Related Report
      2009 Annual Research Report
  • [Presentation] GEMSIS-Magnetosphere : A new approach to the self-consistent modeling of the inner tnagnetosphere during space storms2008

    • Author(s)
      関華奈子, 三好由純, 他6名
    • Organizer
      地球電磁気・地球惑星圏学会講演会
    • Place of Presentation
      仙台
    • Year and Date
      2008-10-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Investigation of particle acceleration and transport in Geospace : The ERG project and related pre-launch activities for integrateddata analysis and modeling2008

    • Author(s)
      関華奈子, 三好由純, 他12名
    • Organizer
      AOGS (Asia Oceania Geosciences Society) 5th Annual Meeting
    • Place of Presentation
      釜山(韓国)
    • Year and Date
      2008-06-16
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://st4a.stelab.nagoya-u.ac.jp/gemsis/magnetosphere

    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://st4a.stelab.nagoya-u.ac.jp/gemsis/magnetosphere/

    • Related Report
      2011 Annual Research Report
  • [Remarks] ホームページ

    • URL

      http://st4a.stelab.nagoya-u.ac.jp/gemsis/magnetosphere/

    • Related Report
      2010 Self-evaluation Report
  • [Remarks]

    • URL

      http://st4a.stelab.nagoya-u.ac.jp/gemsis/magnetosphere/

    • Related Report
      2010 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2016-04-21  

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