Study of Triggered Emissions and Associated High Energy Transfport in Geospace

• Project/Area Number: 23340147
• 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: Kyoto University
• Principal Investigator: OMURA Yoshiharu 京都大学, 生存圏研究所, 教授 (50177002)
• Co-Investigator(Kenkyū-buntansha): YAGITANI Satoshi 金沢大学, 理工研究領域, 教授 (30251937)
• Co-Investigator(Renkei-kenkyūsha): KATOH Yuto 東北大学, 理学研究科, 教授 (60378982)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000); Fiscal Year 2013: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2012: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000); Fiscal Year 2011: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: プラズマ波動 / 計算機シミュレーション / 放射線帯 / 相対論的電子 / 非線形波動 / 非線形ダイナミックス / 不安定性 / 内部磁気圏 / 磁気圏 / 非線形 / コーラス放射 / 計算機実験 / ホイッスラーモード波 / 波動粒子相互作用 / ホイッスラー / コーラス / EMIC / 粒子加速 / ピッチ角散乱 / 非線形過程

Research Abstract

Computer simulations have successfully been conducted, reproducing whistler-modo chorus emissions and electromagnetic ion cyclotron (EMIC) triggered emissions with physical models based on spacecraft observations. The nonlinear wave growth theory for rising-tone emissions has been developed, clarifying the generation mechanism of these emissions. Significant progress has been made in our understanding of the saturation mechanism of the nonlinear wave growth and resulting formation of chorus elements comprising sub-packets structures.

Research Products

• [Journal Article] Nonlinear damping of chorus emissions at local half cyclotron frequencies observed by Geotail at L > 9 (2014)
  • Author(s): T. Habagishi, S. Yagitani, and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 119 Issue: 6 Pages: 4475-4483
  • DOI: 10.1002/2013ja019696
• [Journal Article] Geotail observation of upper-band and lower-band chorus elements in the outer magnetosphere (2014)
  • Author(s): S. Yagitani, T. Habagishi, and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 119 Issue: 6 Pages: 4694-4705
  • DOI: 10.1002/2013ja019678
• [Journal Article] Spectrum characteristics of electromagnetic ion cyclotron triggered emissions and associated energetic proton dynamics (2014)
  • Author(s): M. Shoji and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 119 Issue: 5 Pages: 3480-3489
  • DOI: 10.1002/2013ja019695
• [Journal Article] Direct Measurement of Nonlinear Wave-Particle Interactions in the Earth's Magnetosphere, Wave-Particle Interaction Analyzer (WPIA) for ERG Mission (2014)
  • Author(s): Y. Katoh, M. Hikishima, H. Kojima, Y. Omura, S. Kasahara, M. Hirahara, Y. Miyoshi, K. Seki, K. Asamura, T. Takeshima, T. Ono
  • Journal Title: JPS Conf. Proc. Volume: 015100
• [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] 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] Electron acceleration by Z-mode and whistler-mode waves (2013)
  • Author(s): K. H. Lee, Y. Omura, and L. C. Lee
  • Journal Title: Phys. Plasmas Volume: 20 Issue: 11 Pages: 112901-112901
  • DOI: 10.1063/1.4829439
  • NAID: 120005353496
• [Journal Article] Triggering process of electromagnetic ion cyclotron rising tone emissions in the inner magnetosphere (2013)
  • Author(s): Shoji, M. and Y. Omura
  • Journal Title: Journal of Geophysical Research Volume: 118 Issue: 9 Pages: 5553-5561
  • DOI: 10.1002/jgra.50523
  • Peer Reviewed
• [Journal Article] Relativistic electron microbursts due to nonlinear pitch angle scattering by EMIC triggered emissions (2013)
  • Author(s): Omura, Y. and Q. Zhao
  • Journal Title: J. Geophys. Res. Space Physics Volume: 118 Issue: 8 Pages: 5008-5020
  • DOI: 10.1002/jgra.50477
  • Peer Reviewed
• [Journal Article] Parameter spaces for linear and nonlinear whistler-mode waves (2013)
  • Author(s): D. Summers, R. Tang, Y. Omura, and D. H. Lee
  • Journal Title: Phys. Plasmas Volume: 20 Issue: 7 Pages: 72110-72110
  • DOI: 10.1063/1.4816022
• [Journal Article] Effect of the background magnetic field inhomogeneity on generation processes of whistler-mode chorus and broadband hiss-like emissions (2013)
  • Author(s): Y. Katoh and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 118 Issue: 7 Pages: 4189-4198
  • DOI: 10.1002/jgra.50395
• [Journal Article] Ray tracing of whistler-mode chorus elements : implications for generation mechanisms of rising and falling tone emissions (2013)
  • Author(s): K. Yamaguchi, T. Matsumuro, Y. Omura, and D. Nunn
  • Journal Title: Ann. Geophys. Volume: 31 Pages: 665-673
• [Journal Article] Significance of Wave-Particle Interaction Analyzer for direct measurements of nonlinear wave-particle interactions (2013)
  • Author(s): Y. Katoh, 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 Pages: 503-512
• [Journal Article] EMIC triggered chorus emissions in Cluster data (2013)
  • Author(s): Grison, B., O. Santolik, N. Cornilleau-Wehrlin, A. Masson, M. J. Engebretson, J. S. Pickett, Y. Omura, P. Robert, R. Nomura
  • Journal Title: J. Geophys. Res. Volume: 118 Issue: 3 Pages: 1159-1169
  • DOI: 10.1002/jgra.50178
• [Journal Article] Triggering process of electromagnetic ion cyclotron rising tone emissions in the inner magnetosphere (2013)
  • Author(s): M. Shoji and Y. Omura
  • Journal Title: Jounal of Geophysical Research Volume: 118 Pages: 5553-5561
  • Peer Reviewed
• [Journal Article] and ERG-working group, The Energization and Radiation in Geospace (ERG) Project, in "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" (2012)
  • Author(s): Miyoshi, Y., T. Ono, T. Takashima, K.Asamura, M. Hirahara, Y. Kasaba, A. Matsuoka, H. Kojima, K. Shiokawa, K. Seki, M. Fujimoto, T. Nagatsuma, C. Z. Cheng, Y. Kazama, S. Kasahara, H. Matsumoto, N. Higashio, A. Kumamoto, S. Yagitani, Y. Kasahara, K. Ishisaka, Y. Katoh, Y. Ebihara, Y. Omura, M.Nose, T. Hori, Y. Miyashita, Y. Tanaka, T. Segawa edited by D. Summers, I. R. Mann, D. N. Baker, and M. Schulz, , AGU, Washington, D. C.
  • Journal Title: Geophys. Monogr. Ser Volume: vol. 199 Pages: 103-116
  • DOI: 10.1029/2012gm001304
  • Peer Reviewed
• [Journal Article] Linear and Nonlinear Growth of Magnetospheric Whistler Mode Waves (2012)
  • Author(s): D. Summers, R. Tang, and Y. Omura
  • Journal Title: AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" Pages: 265-280
  • DOI: 10.1029/2012gm001298
• [Journal Article] Generation processes of whistler-mode chorus emissions : Current status of nonlinear wave growth theory (2012)
  • Author(s): Omura Y., D. Nunn, and D. Summers
  • Journal Title: AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" Pages: 243-254
  • DOI: 10.1029/2012gm001347
• [Journal Article] THEMIS observation of rising tone chorus elements without a gap at half the gyrofrequency (2012)
  • Author(s): Satoshi Kurita
  • Journal Title: Journal of Geophysical Research Volume: 117 Issue: A11 Pages: 1-7
  • DOI: 10.1029/2012ja018076
  • Peer Reviewed
• [Journal Article] Precipitation of Highly Energetic Protons by Helium Branch Electromagnetic Ion Cvclotron Trieeered Emissions (2012)
  • Author(s): Shoji, M., and Y. Omura
  • Journal Title: Journal of Geophysical Research, Space Physics Volume: 117 Issue: A12
  • DOI: 10.1029/2012ja017933
  • Peer Reviewed
• [Journal Article] Nonlinear spatio-temporal evolution of whistler mode chorus waves in Earth's inner magnetosphere (2012)
  • Author(s): Summers, D., Y. Omura, Y. Miyashita, and D.-H. Lee
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A9
  • DOI: 10.1029/2012ja017842
  • Peer Reviewed
• [Journal Article] A computational and theoretical analysis of falling frequency VLF emissions (2012)
  • Author(s): Nunn, D., and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A8
  • DOI: 10.1029/2012ja017557
• [Journal Article] Nonlinear pitch-angle scattering of relativistic electrons by EMIC waves in the inner magnetosphere (2012)
  • Author(s): Omura Y., and Q. Zhao
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A8
  • DOI: 10.1029/2012ja017943
  • NAID: 120004873700
  • Peer Reviewed
• [Journal Article] Multidimensional Nonlinear Mirror-mode Structures in the Earth' s Magnetosheath (2012)
  • Author(s): Shoji, M., Y. Omura, and L. C. Lee
  • Journal Title: Journal of Geophysical Research, Space Physics Volume: 117 Issue: A8
  • DOI: 10.1029/2011ja017420
  • Peer Reviewed
• [Journal Article] Particle simulations of whistler-mode rising-tone emissions triggered by waves with different amplitudes (2012)
  • Author(s): Hikishima, M., and Y. Omura
  • Journal Title: J. Geophys. Res Volume: 117, A04226 Issue: A4 Pages: 1-9
  • DOI: 10.1029/2011ja017428
  • Peer Reviewed
• [Journal Article] Electron acceleration by Z-mode waves associated with cyclotron maser instability (2012)
  • Author(s): K. H. Lee
  • Journal Title: Physics of Plasmas Volume: 19 Pages: 122902-122902
  • Peer Reviewed
• [Journal Article] Observed correlation between pulsating aurora and chorus waves at Syowa Station in Antarctica: A case study (2012)
  • Author(s): Ozaki, M
  • Journal Title: Journal of Geophysical Research Volume: 117 Issue: A8
  • DOI: 10.1029/2011ja017478
  • Peer Reviewed
• [Journal Article] Effects of nonlinear wave growth on extreme radiation belt electron fluxes (2011)
  • Author(s): Summers, D., R. Tang, and Y. Omura
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A10 Pages: n/a-n/a
  • DOI: 10.1029/2011ja016602
• [Journal Article] Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions (2011)
  • Author(s): Shoji M., Y.Omura, B.Grison, J.Pickett, I.Dandouras, M.Engebretson
  • Journal Title: Geophysical Research Letters Volume: 38 Issue: 17 Pages: n/a-n/a
  • DOI: 10.1029/2011gl048427
  • Peer Reviewed
• [Journal Article] Amplitude dependence of frequency sweep rates of whistler mode chorus emissions (2011)
  • Author(s): Katoh, Y. and Y. Omura
  • Journal Title: J. Geophys. Res Volume: 116 Issue: A7 Pages: n/a-n/a
  • DOI: 10.1029/2011ja016496
  • Peer Reviewed
• [Journal Article] Simulation of Electromagnetic Ion Cyclotron Triggered Emissions in the Inner Magnetosphere (2011)
  • Author(s): Shoji, M., Y.Omura
  • Journal Title: Journal of Geophysical Research, Space Physics Volume: 116 Issue: A5
  • DOI: 10.1029/2010ja016351
  • Peer Reviewed
• [Journal Article] Triggering process of whistler mode chorus emissions in the magnetosphere (2011)
  • Author(s): Omura, Y., and D. Nunn
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A5
  • DOI: 10.1029/2010ja016280
  • NAID: 120003163662
• [Journal Article] Triggering process of whistler mode chorus emissionsin the magnetosphere (2011)
  • Author(s): Yoshiharu Omura, David Nunn
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 116
  • Peer Reviewed
• [Journal Article] Amplitude dependence of frequency sweep rates of whistler mode chorus emissions (2011)
  • Author(s): Yuto Katoh, Yoshiharu Omura
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 116
  • Peer Reviewed
• [Journal Article] Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions (2011)
  • Author(s): Masafumi Shoji, Yoshiharu Omura, et al
  • Journal Title: GEOPHYSICAL RESEARCH LETTERS Volume: 38
  • NAID: 120003386627
  • Peer Reviewed
• [Journal Article] A 2D simulation study of Langmuir, whistler, and cyclotron maser instabilities induced by an electron ring-beam distribution (2011)
  • Author(s): K.H.Lee, Y.Omura, L.C.Lee
  • Journal Title: Phys.Plasmas Volume: 18
  • Peer Reviewed
• [Journal Article] Frequency and amplitude analysis of chorus emissions observed by GEOTAIL (2011)
  • Author(s): S.Mori, K.Ishizaka, S.Yagitani, M.Hikishima, H.Kojima
  • Journal Title: Proc.XXX URSI General Assembly and Scientific Symposium Volume: 18
  • Peer Reviewed
• [Journal Article] Effects of nonlinear wave growth on extreme radiation belt electron fluxes (2011)
  • Author(s): D.Summers, R.Tang, Y.Omura
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 116
  • Peer Reviewed
• [Journal Article] Simulation of electromagnetic ion cyclotron triggered emissions in the Earth's inner magnetosphere (2011)
  • Author(s): Masafumi Shoji, Yoshiharu Omura
  • Journal Title: JOURNAL OF GEOPHYSICAL RESEARCH Volume: 116
  • Peer Reviewed
• [Presentation] Generatin mechanism of whistler-mode chorus emissions (2014)
  • Author(s): Y. Omura
  • Organizer: VERSIM 2014
  • Place of Presentation: Dunedin, New Zealand
  • Year and Date: 2014-01-20
  • Invited
• [Presentation] GENERATION MECHANISM OF WHISTLER-MODE CHORUS EMISSIONS (2014)
  • Author(s): Yoshiharu Omura
  • Organizer: VERSIM 2014
  • Place of Presentation: Dunedin, New Zealand
  • Invited
• [Presentation] Generation of EMIC triggered emissions and associated precipitations of energetic protons and relativistic electrons in the Earth's inner magnetosphere (2013)
  • Author(s): Y. Omura
  • Organizer: Naval Research Laboratory, Plasma Physics Devision Colloquium
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2013-12-17
  • Invited
• [Presentation] Generation mechanism of whistler-mode chorus emissions (2012)
  • Author(s): Y. Omura
  • Organizer: 39th COSPAR
  • Place of Presentation: Mysore, India
  • Year and Date: 2012-07-19
  • Invited
• [Presentation] Nonlinear Dynamics of Relativistic Electrons Interacting with Whistler-Mode Chorus Emissions and EMIC Triggered Emissions (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: GEMSIS international workshop
  • Place of Presentation: 名古屋大学(愛知県)(招待講演)
  • Year and Date: 2012-03-12
• [Presentation] Geotail衛星観測に基づくコーラスエミッションの非線形成長特性の解析 (2012)
  • Author(s): 幅岸俊宏, 森晋作, 八木谷聡, 大村善治, 小嶋浩嗣
  • Organizer: 第199回生存圏シンポジウム「SGEPSS波動分科会」～波動観測データ解析と将来の波動観測技術～
  • Place of Presentation: 金沢大学(石川県)
  • Year and Date: 2012-03-09
• [Presentation] Nonlinear processes of whistler-mode wave-particle interactions (2012)
  • Author(s): Y. Omura
  • Organizer: BSP SWG Meeting
  • Place of Presentation: APL, U.S.A
  • Invited
• [Presentation] Nonlinear dynamics of relativistic electrons interacting with whistler-mode chorus emission and EMIC triggered emissions in the planetary magnetosphere (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: IAU XXVIII General Assembly
  • Place of Presentation: Beijin
  • Invited
• [Presentation] Generation Process of EMIC Triggered Emissions and Associated Precipitations of Energetic Protons and Relativistic Electrons (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: AOGS-AGU (WPGM) Joint Assembly, 2012
  • Place of Presentation: Singapore
  • Invited
• [Presentation] Nonlinear Dynamics of Relativistic Electrons Interacting with Whistler-mode Chorus Emissions and Electromagnetic Ion Cyclotron Waves in the Earth’s Radiation Belts (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: AOGS-AGU (WPGM) Joint Assembly, 2012
  • Place of Presentation: Singapore
  • Invited
• [Presentation] Generation process of EMIC triggered emissions and associated precipitations of energetic protons and relativistic electrons (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: 39th COSPAR
  • Place of Presentation: Mysore, India
  • Invited
• [Presentation] Generation mechanism of whistler-mode chorus emissions (2012)
  • Author(s): Yoshiharu Omura
  • Organizer: 39th COSPAR
  • Place of Presentation: Mysore India
  • Invited
• [Presentation] Generation and propagation characteristics of dual-band chorus emissions observed by Geotail (2012)
  • Author(s): Satoshi Yagitani
  • Organizer: AGU Fall Meeting 2012
  • Place of Presentation: San Francisco
• [Presentation] Nonlinear processes of whistler-mode chorus emissions and associated acceleration of relativistic electrons in the radiation belts (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: 國立中央大學太空科學研究所特別講義
  • Place of Presentation: Jung-Li City (ROC.Taiwan)(招待講演)
  • Year and Date: 2011-11-11
• [Presentation] コーラス放射生成過程に関する計算機実験結果のWPIA計測手法を用いた解析 (2011)
  • Author(s): 北原理弘, 加藤雄人, 小野高幸, 小嶋浩嗣, 大村善治, 他
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-04
• [Presentation] かぐやのモノポールアンテナで観測された月周辺静電孤立波(ESW)の解析 (2011)
  • Author(s): 橋本弘藏, 橋谷真紀, 大村善治, 笠原禎也, 小嶋浩嗣, 他
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] 月周辺で観測される電子サイクロトロン高調波 (2011)
  • Author(s): 片山由美子, 小嶋浩嗣, 斎藤義文, 笠原禎也, 大村善治, 他
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] Electromagnetic Ion Cyclotron Waves in the Helium Branch Induced by Multiple Electromagnetic Ion Cyclotron Triggered Emissions (2011)
  • Author(s): 小路真史, 大村善治, Grison Benjamin, et al
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] 内部磁気圏におけるホイッスラーモード・コーラス放射の飽和機構 (2011)
  • Author(s): 大村善治, Summers Danny, 疋島充
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] GEOTAIL衛星により観測されたコーラスエミッションの振幅-周波数依存性の検証 (2011)
  • Author(s): 森晋作, 石坂和大, 八木谷聡, 大村善治, 疋島充, 小嶋浩嗣
  • Organizer: 地球電磁気・地球惑星圏学会第130回総会及び講演会
  • Place of Presentation: 神戸大学(兵庫県)
  • Year and Date: 2011-11-03
• [Presentation] Nonlinear Wave-Particle Interactions in Space Plasmas (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: Boston University特別講義
  • Place of Presentation: Boston (USA)(招待講演)
  • Year and Date: 2011-09-15
• [Presentation] Nonlinear processes of whistler-mode chorus emissions and associated acceleration of relativistic electrons in the radiation belts (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: MIT Kavli Institute for Astrophysics and Space Research
  • Place of Presentation: Cambridge (USA)(招待講演)
  • Year and Date: 2011-09-13
• [Presentation] WAVE EXCITATION IN THE LUNAR WAKE ASSOCIATED WITH SOLAR-WIND PROTON ENTRY (2011)
  • Author(s): M.N.Nishino, Y.Saito, Y.Kasahara, Y.Omura, et al
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)
  • Year and Date: 2011-08-19
• [Presentation] ELECTROSTATIC SOLITARY WAVES (ESWS) OBSERVED BY KAGUYA NEAR THE MOON (2011)
  • Author(s): K.Hashimoto, M.Hashitani, Y.Omura, Y, et al
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)
  • Year and Date: 2011-08-19
• [Presentation] THE THEORY AND NUMERICAL MODELLING OF NON LINEAR WAVE PARTICLE INTERACTIONS IN OBLIQUE WHISTLERS8 (2011)
  • Author(s): D.Nunn, Y.Omura
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)
  • Year and Date: 2011-08-16
• [Presentation] TRIGGERING PROCESS OF WHISTLER-MODE CHORUS EMISSIONS IN THE MAGNETOSPHERE (2011)
  • Author(s): Y.Omura, D.Nunn
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)
  • Year and Date: 2011-08-16
• [Presentation] Frequency and amplitude analysis of chorus emissions observed by GEOTAIL (2011)
  • Author(s): S.Mori, K.Ishizaka, S.Yagitani, M.Hikishima, H.Kojima
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)
  • Year and Date: 2011-08-16
• [Presentation] NONLINEAR MIRROR MODE STRUCTURES IN MULTIDIMENSIONAL MODELS (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: URSI xxx General Assembly
  • Place of Presentation: Istanbul (Turky)(招待講演)
  • Year and Date: 2011-08-15
• [Presentation] Particle Simulations of Whistler-mode Chorus and Electromagnetic Ion Cyclotron Waves (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: 10th International School for Space Simulations (ISSS-10)
  • Place of Presentation: Banff (Canada)(招待講演)
  • Year and Date: 2011-07-25
• [Presentation] Formation process of relativistic electron flux through interaction with chorus emissions in the Earth's inner magnetosphere (2011)
  • Author(s): Yoshiharu Omura
  • Organizer: AGU Chapman Conference on Dynamics of the Earth's Radiation Belts and Inner Magnetosphere
  • Place of Presentation: St.John's, Newfoundland and Labrador (Canada)(招待講演)
  • Year and Date: 2011-07-17
• [Presentation] 地球内部磁気圏における電磁イオンサイクロトロントリガード放射のシミュレーション (2011)
  • Author(s): 小路真史, 大村善治
  • 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)
  • Year and Date: 2011-05-27
• [Presentation] ホイスラーモード・トリガード放射に関する計算機実験 (2011)
  • Author(s): 疋島充, 大村善治, Summers Danny
  • 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)
  • Year and Date: 2011-05-27
• [Presentation] ホイッスラーモード波およびEMIC波のトリガード・エミッション (2011)
  • Author(s): 大村善治
  • 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)
  • Year and Date: 2011-05-26
• [Presentation] 3次元モデルにおける非線形ミラーモード磁場構造 (2011)
  • Author(s): 小路真史, 大村善治, Lee Lou-Chuang
  • 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)
  • Year and Date: 2011-05-24
• [Presentation] NONLINEAR MIRROR MODE STRUCTURES IN MULTIDIMENSIONAL MODELS (2011)
  • Author(s): M. Shoji, Y. Omura, L.-C. Lee
  • Organizer: URSI XXX General Assembly Istanbul
  • Place of Presentation: Turky
  • Invited
• [Presentation] Particle Simulations of Whistler-mode Chorus and Electromagnetic Ion Cyclotron Waves (2011)
  • Author(s): Y. Omura
  • Organizer: 10th International School for Space Simulations (ISSS-10)
  • Place of Presentation: Banff, Canada
  • Invited
• [Presentation] Formation process of relativistic electron flux through interaction with chorus emissions in the Earth's inner magnetosphere (2011)
  • Author(s): Y. Omura
  • Organizer: AGU Chapman Conference on Dynamics of the Earth's Radiation Belts and Inner Magnetosphere
  • Place of Presentation: St. John's, Newfoundland and Labrador, Canada
  • Invited
• [Presentation] Generation of EMIC triggered emissions and associated precipitations of energetic protons and relativistic electrons in the Earth's inner magnetosphere
  • Author(s): Yoshiharu Omura
  • Organizer: Naval Research Laboratory, Plasma Physics Devision Colloquium
  • Place of Presentation: Washington DC, USA
  • Invited
• [Book] Generation processes of whistler-mode chorus emissions: Current status of nonlinear wave growth theory, AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" (2012)
  • Author(s): Omura Y., D. Nunn, and D. Summers
• [Book] Linear and Nonlinear Growth of Magnetospheric Whistler Mode Waves, AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" (2012)
  • Author(s): D. Summers, R. Tang, and Y. Omura
• [Book] The Energization and Radiation in Geospace (ERG) Project, AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere", The Energization and Radiation in Geospace (ERG) Project (2012)
  • Author(s): Y. Miyoshi, T. Ono, T. Takashima, K. Asamura, M. Hirahara, Y. Kasaba, A. Matsuoka, H. Kojima, K. Shiokawa, K. Seki, M. Fujimoto, T. Nagatsuma, C.Z. Cheng, Y. Kazama, S. Kasahara, T. Mitani, H. Matsumoto, N. Higashio, A. Kumamoto, S. Yagitani, Y. Kasahara, K. Ishisaka, L. Blomberg, A. Fujimoto, Y. Katoh, Y. Ebihara, Y. Omura, M. Nosé, T. Hori, Y. Miyashita, Y.-M. Tanaka and T. T. Segawa
• [Book] AGU Monograph "Dynamics of the Earth's Radiation Belts and Inner Magnetosphere" (2012)
  • Author(s): Yoshiharu Omura
  • Total Pages: 12
  • Publisher: Generation processes of whistler-mode chorus emissions: Current status of nonlinear wave growth theory