Study on transportation/acceleration process of relativistic electrons by multi-scale radiation belt simulations

• Project/Area Number: 23340146
• 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: YOSHIZUMI Miyoshi 名古屋大学, 太陽地球環境研究所, 准教授 (10377781)
• Co-Investigator(Kenkyū-buntansha): SAITO Shinji 名古屋大学, 大学院理学研究科, 特任准教授 (60528165)
• Co-Investigator(Renkei-kenkyūsha): SEKI Kanako 名古屋大学, 太陽地球環境研究所, 准教授 (20345854) ; MATSUMOTO Yosuke 千葉大学, 大学院理学研究科, 特任助教 (20397475) ; AMANO Takanobu 東京大学, 大学院理学系研究科, 助教 (00514853)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2011: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
• Keywords: 放射線帯 / 粒子輸送 / 粒子加速 / シミュレーション / 宇宙天気 / ホイッスラー / 波動粒子相互作用 / MHD

Outline of Final Research Achievements

We have newly developed simulation codes to investigate global variations of energetic electrons of the outer belt considering wave-particle interactions. As a result, we found that the whistler chorus waves can cause wide energy electron precipitations from a few keV to MeV simultaneously, which are confirmed by observations. Moreover, we found that the MHD mode waves can resonate with the drifting electrons and the prompt accelerations of MeV electrons are found associated with the solar wind pressure pulse.

Research Products

• [Journal Article] Energetic electron precipitation associated with pulsating aurora: EISCAT and Van Allen Probes observations (2015)
  • Author(s): Miyoshi, Y., S. Oyama, S. Saito, H. Fujiwara, R. Kataoka, Y. Ebihara, C. Kletzing, G. Reeves, O. Santolik, M. Cliverd, C. Rodger, E. Turunen, and F. Tsuchiya
  • Journal Title: J. Geophys. Res. Volume: 120 Pages: 1-1
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012 (2014)
  • Author(s): Isono, Y., A. Mizuno, T. Nagahama, Y. Miyoshi, T. Nakamura, R. Kataoka, M. Tsutsumi, M. K. Ejiri, H. Fujiwara, and H. Maezawa
  • Journal Title: Geophysical Research Letters Volume: 41 Issue: 7 Pages: 2568-2574
  • DOI: 10.1002/2014gl059360
  • Peer Reviewed
• [Journal Article] Ground-based observations of nitric oxide in the mesosphere and lower thermosphere over Antarctica in 2012-2013 (2014)
  • Author(s): Isono, Y., A. Mizuno, T. Nagahama, Y. Miyoshi, T. Nakamura, R. Kataoka, M. Tsutsumi, M. Ejiri, H. Fujiwara, H. Maezawa, and M. Uemura
  • Journal Title: J. Geophys. Res. Volume: 119 Pages: 1-1
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High-speed solar wind with southward interplanetary magnetic field causes relativistic electron flux enhancement of the outer radiation belt via enhanced condition of whistler waves (2013)
  • Author(s): Miyoshi, Y., R. Kataoka, Y. Kasahara, A. Kumamoto, T. Nagai, and M. Thomsen
  • Journal Title: Geophys. Res. Lett. Volume: 40 Issue: 17 Pages: 1-6
  • DOI: 10.1002/grl.50916
  • Peer Reviewed
• [Journal Article] Significance of Wave-Particle Interaction Analyzer for direct measurements ofnonlinear wave-particle interactions (2013)
  • Author(s): Katoh, Y., M. Kitahara, H. Kojima, Y.Omura, S. Kasahara, M. Hirahara, Y. Miyoshi, K. Seki, K. Asamura, T. Takashima, and T. Ono
  • Journal Title: Ann. Geophys Volume: 31 Issue: 3 Pages: 503-512
  • DOI: 10.5194/angeo-31-503-2013
  • Peer Reviewed
• [Journal Article] Study on the generation mechanism of relativistic electrons due to wave-particle interactions in the radiation belts via spacecraft observations (2013)
  • Author(s): Miyoshi, Y., Y. Katoh, H. Kojima, and M. Hikishima
  • Journal Title: J. Plasma Fusion Res. Volume: 89 Pages: 536-543
  • NAID: 110009660630
  • Peer Reviewed
• [Journal Article] Akebono observations of EMIC waves in the slot region of the radiation belts (2013)
  • Author(s): Sakaguchi, K., Y. Kasahara, M. S hoji, et al.
  • Journal Title: Geophysical Research Letters Volume: 40 Issue: 21 Pages: 5587-5591
  • DOI: 10.1002/2013gl058258
  • Peer Reviewed
• [Journal Article] Relativistic Electron Microbursts associated with Whistler Chorus Rising Tone Elements: GEMSIS-RBW Simulations (2012)
  • Author(s): Saito, S., Y. Miyoshi, and K. Seki
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A10
  • DOI: 10.1029/2012ja018020
  • Peer Reviewed
• [Journal Article] Fine scale structures of pulsating auroras in the early recovery phase of substorm using ground-based EMCCD camera (2012)
  • Author(s): Nishiyama, T., T. Sakanoi, Y. Miyoshi, R. Kataoka, D. Hampton, Y. Katoh, K. Asamura, and S. Okano
  • Journal Title: Journal of Geophysical Research Volume: 117 Issue: A10
  • DOI: 10.1029/2012ja017921
  • Peer Reviewed
• [Journal Article] PENGUIn/AGO and THEMIS conjugate observations of whistler-mode chorus waves in the dayside uniform zone under steady solar wind and quiet geomagnetic conditions (2012)
  • Author(s): Keika, K., M. Spasojevic , W. Li , J. Bortnik , Y. Miyoshi , V. Angelopoulos
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A7
  • DOI: 10.1029/2012ja017708
  • Peer Reviewed
• [Journal Article] Electron and wave characteristics observed by the THEMIS satellites near the magnetic equator during a pulsating aurora (2012)
  • Author(s): Nakajima, A., K. Shiokawa, K. Sakaguchi, Y. Miyoshi, S. Lee, V. Angelopoulos, O. Le Contel, J. P. McFadden, J. W. Bonnell, K.-H. Fornacon, and E. Donovan
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A3
  • DOI: 10.1029/2011ja017066
  • Peer Reviewed
• [Journal Article] Outer radiation belt boundary location relative to the magnetopause : Implications for magnetopause shadowing (2011)
  • 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
  • Peer Reviewed
• [Journal Article] Dynamic inner magnetosphere Tutorial and recent advances, in Dynamic Magnetosphere (2011)
  • Author(s): Ebihara, Y. and Y. Miyoshi
  • Journal Title: IAGA Special Sopron Book Series Volume: Vol.3 Pages: 145-187
  • DOI: 10.1007/978-94-007-0501-2_9
  • ISBN: 9789400705005, 9789400705012
  • Peer Reviewed
• [Presentation] Precipitation Loss and Nonlinear Acceleration of Broadband Energetic Electrons by Whistler Chorus Waves (2015)
  • Author(s): S. Saito and Y. Miyoshi
  • Organizer: AGU Joint Assembly
  • Place of Presentation: カナダ・モントリオール
  • Year and Date: 2015-05-07
  • Invited
• [Presentation] Common characteristics of the pulsating aurora electrons and relativistic electron microbursts: Satellite observations and simulation (2015)
  • Author(s): Y. Miyoshi, S. Saito, S. Kurita, S. Oyama, M. Hirahara, K. Asamura, T. Sakanoi, and S. Kanekal
  • Organizer: Inner Magnetosphere Coupling III
  • Place of Presentation: 米国・ロスアンジェルス
  • Year and Date: 2015-03-23 – 2015-03-27
• [Presentation] Relativistic electron acceleration by whistler chorus elements including de-trapping effect (2014)
  • Author(s): 齊藤 慎司、三好 由純、関華奈子
  • Organizer: 第136回地球電磁気・地球惑星圏学会
  • Place of Presentation: キッセイ文化ホール
  • Year and Date: 2014-11-01
• [Presentation] Radiation Belt Storms (2014)
  • Author(s): Y. Miyoshi and R. Kataoka
  • Organizer: AOGS 2014
  • Place of Presentation: 札幌
  • Year and Date: 2014-07-28 – 2014-08-01
  • Invited
• [Presentation] Prompt acceleration of relativistic electrons of the outer belt associated with the dynamic pressure enhancement (2013)
  • Author(s): Miyoshi, Y., S. Saito, Y. Matsumoto, K. Seki, and T. Amano
  • Organizer: AOGS 2013
  • Place of Presentation: オーストラリア、ブリスベン
  • Invited
• [Presentation] Long-term variations of the radiation belt electrons (2013)
  • Author(s): Miyoshi, Y., and R. Kataoka
  • Organizer: 2013 Asia-Pacific Radio Science Conference
  • Place of Presentation: 台湾、台北
  • Invited
• [Presentation] Broadband electron precipitations associated with the pulsating aurora: EISCAT observation and computer simulation (2013)
  • Author(s): Miyoshi, Y., S. Oyama, S. Saito, H. Fujiwara, and R. Kataoka
  • Organizer: American Geophysical Union
  • Place of Presentation: 米国、サンフランシスコ
• [Presentation] Dynamics of the radiation belts (2013)
  • Author(s): Miyoshi, Y.
  • Organizer: 11th International School/Symposium for Space Simulations
  • Place of Presentation: 台湾、台北
  • Invited
• [Presentation] オーロラ活動に伴う高エネルギー電子の降り込み；EISCAT観測 (2013)
  • Author(s): 三好 由純、大山 伸一郎、齊藤 慎司
  • Organizer: 日本地球惑星科学連合2013年大会
  • Place of Presentation: 日本、幕張
• [Presentation] Kinetic and Self-consistent Numerical Modeling of the Terrestrial Inner Magnetosphere (2012)
  • Author(s): Amano, T., Seki, K.Miyoshi, Y., Umeda, T., Matsumoto, Y., Ebihara, Y., Saito, S.
  • Organizer: 6th International Conference on Numerical Modeling of Space Plasma Flows (ASTRONUM 2011)
  • Place of Presentation: スペイン(招待講演)
  • Year and Date: 2012-06-17
• [Presentation] Relativistic electron microbursts associated with whistler chorus (2012)
  • Author(s): S.Saito, Y.Miyoshi, K.Seki
  • Organizer: Inner Magnetosphere Coupling II
  • Place of Presentation: 米国・ロスアンジェルス
  • Year and Date: 2012-03-21
• [Presentation] Self-consistent Drift-kinetic Numerical Ring-current Modeling : Five-dimensional Vlasov-Maxwell Approach (2012)
  • Author(s): Amano, T., Seki, K.Miyoshi, Y., Umeda, T., Matsumoto, Y., Ebihara, Y., Saito, S.
  • Organizer: Inner Magnetosphere Coupling II
  • Place of Presentation: 米国・ロスアンジェルス(招待講演)
  • Year and Date: 2012-03-19
• [Presentation] Self-consistent Kinetic Ring Current Modeling : The GEMSIS-RC Code (2012)
  • Author(s): Amano, T., Seki, K.Miyoshi, Y., Umeda, T., Matsumoto, Y., Ebihara, Y., Saito, S.
  • Organizer: GEMSIS International Workshop
  • Place of Presentation: 日本
  • Year and Date: 2012-03-12
• [Presentation] Solar Wind-Radiation Belt Couplings (2012)
  • Author(s): Miyoshi, Y., R.Kataoka, V.Jordanova, Y.Kasahara, A.Kumamoto
  • Organizer: GEMSIS International Workshop
  • Place of Presentation: 日本
  • Year and Date: 2012-03-12
• [Presentation] Simulation on the relativistic electron dynamics in the realistic time-dependent magnetic field by the GEMSIS geospace models (2012)
  • Author(s): Miyoshi, Y., S. Saito, K. Seki, Y. Matsumoto, T. Amano, and M. Yagi
  • Organizer: COSPAR 2012
  • Place of Presentation: インド・マイソール
• [Presentation] 太陽風動圧変化時の外帯電子加速に関するシミュレーション (2012)
  • Author(s): 三好由純、齊藤慎司、松本洋介、関華奈子、天野孝伸
  • Organizer: 地球電磁気・地球惑星圏学会
  • Place of Presentation: 北海道
• [Presentation] 3次元磁場中でのホイッスラーコーラスによる相対論的電子散乱：GEMSIS-RBWシミュレーション (2012)
  • Author(s): 齋藤慎司、三好由純、関華奈子、久保田康文、長妻努、村田健史
  • Organizer: 地球電磁気・地球惑星圏学会
  • Place of Presentation: 北海道
• [Presentation] Plasma sheet electrons, plasmasphere, and whistler mode waves during high-speed stream events (2011)
  • Author(s): Y.Miyoshi, R.Kataoka, Y.Kasahara, A.Kumamoto
  • Organizer: American Geophysical Union
  • Place of Presentation: 米国・サンフランシスコ(招待講演)
  • Year and Date: 2011-12-05
• [Presentation] パルセーティングオーロラにともなう降り込み電子の変調～れいめい観測～ (2011)
  • Author(s): 三好由純、齊藤慎司、関華奈子、加藤雄人、坂野井健、西山尚典、浅村和史、平原聖文
  • Organizer: 地球電磁気・地球惑星圏学会
  • Place of Presentation: 日本
  • Year and Date: 2011-11-03
• [Presentation] Solar Wind-Radiation Belt Coupling via Wave Particle Interactions (2011)
  • Author(s): Y.Miyoshi, R.Kataoka, Y.Kasahara, A.Kumamoto
  • Organizer: International Symposium on Recent Observations and Simulations of the Sun-Earth System II
  • Place of Presentation: ブルガリア
  • Year and Date: 2011-09-16
• [Presentation] Flux drop out of the outer belt electrons -THEMIS data analysis- (2011)
  • Author(s): Y.Miyoshi, C.Matsumura, K.Seki, S.Saito, V.Angelopoulos, J.Koller
  • Organizer: 2011 International Space Plasma Symposium (ISPS)
  • Place of Presentation: 台湾(招待講演)
  • Year and Date: 2011-08-16
• [Presentation] Large flux enhancement of the outer belt electrons associated with high-speed coronal hole stream (2011)
  • Author(s): Y.Miyoshi, R.Kataoka, Y.Kasahara
  • Organizer: AGU Chapman Conference
  • Place of Presentation: カナダ・ニューファンドランド
  • Year and Date: 2011-07-19
• [Presentation] Study of electron microburst associated with whistler chorus in the outer radiation belt : GEMSIS-RB Wave simulations (2011)
  • Author(s): S.Saito, Y.Miyoshi, K.Seki
  • Organizer: AGU Chapman Conference
  • Place of Presentation: カナダ・ニューファンドランド
  • Year and Date: 2011-07-19
• [Presentation] Solar wind-radiation belt coupling via wave-particle interactions (2011)
  • Author(s): Y.Miyoshi, R.Kataoka
  • Organizer: GEM 2011 Special session : Response of the magnetosphere to high speed streams
  • Place of Presentation: 米国・サンタフェ(招待講演)
  • Year and Date: 2011-06-26
• [Presentation] Simulation study on the evolution and propagation of whistler waves during storm time (2011)
  • Author(s): Y.Miyoshi, V.Jordanova, Y.Matsumoto
  • Organizer: JPGU meeting
  • Place of Presentation: 日本
  • Year and Date: 2011-05-27
• [Presentation] Solar Wind-Radiation Belt Coupling via Wave-Particle Interactions (2011)
  • Author(s): Y.Miyoshi, R.Kataoka, Y.Kasahara, A.Kumamoto
  • Organizer: JPGU meeting
  • Place of Presentation: 日本
  • Year and Date: 2011-05-26