Global COE Program - Kyoto University - In Search of Sustainable Humanosphere in Asia and Africa: OMURA, Yoshiharu

Research Theme：　

Study of space plasma environment
Strategy for new energy by Space Solar Power Station
Simulation analysis of sustainable humanosphere

References：　

Y. Omura, N. Furuya, D. Summers, Relativistic turning acceleration of resonant electrons by coherent whistler-mode waves in a dipole magnetic field, Journal Geophysical Research, Vol. 112, A06236, doi:10.1029/2006JA012243, 2007.
T. Kimura, Y. Omura, and H.i Matsumoto, Impacts of Oil Production Decline on Japanese Food Supply, - Prospects toward sustainable human societies -, Solar Energy, Vol. 31, No. 2, 45-49, 2005.

2007 G-COE Research Outcome:

Tsubouch, K., Omura, Y., Long-term occurrence probabilities of intense geomagnetic storm events, Space Weather, 5, S12003, doi:10.1029/2007SW000329, 2007.
Omura Y., Katoh,Y., Summers, D., Theory and simulation of the generation of whistler-mode chorus, Journal of Geophysical Research, in press.
Furuya, N., Omura, Y., Summers, D., Relativistic turning acceleration of radiation belt electrons by whistler-mode chorus, Journal of Geophysical Research, in press.
Computer simulation of chorus wave generation in the Earth’s inner magnetosphere, Y. Katoh and Y. Omura, Geophysical Research Letters. Vol. 34, L03102, doi:10.1029/2006GL028594, 2007.
Relativistic turning acceleration of resonant electrons by coherent whistler-mode waves in a dipole magnetic field, Y. Omura, N. Furuya, D. Summers, Journal Geophysical Research, Vol. 112, A06236, doi:10.1029/2006JA012243, 2007.
Relativistic particle acceleration in the process of whistler-mode chorus wave generation, Y. Katoh and Y. Omura, Geophys. Res. Lett., 34, L13102, doi:10.1029/2007GL029758, 2007.
One-dimensional Electromagnetic Particle Code: KEMPO1, Y. Omura, Advanced Methods for Space Simulations, edited by H. Usui and Y. Omura, Terra Pub, pp.1?21, 2007.
Energetic particle parallel diffusion in a cascading wave turbulence in the foreshock region, F. Otsuka, Y. Omura, and O. Verkhoglyadova, Nonlin. Processes Geophys., Vol. 14, pp. 587?601, 2007.
Turbulent acceleration of superthermal electrons, C.-M. Ryua, T. Rhee, T. Umeda, P. H. Yoon, Y. Omura, Physics of Plasmas 14, 100701, 2007.
Ultra-relativistic acceleration of electrons in planetary magnetospheres, D. Summers and Y. Omura, Geophys. Res. Lett., 34, L24205, doi:10.1029/2007GL032226, 2007.
Long-term occurrence probabilities of intense geomagnetic storm events, K. Tsubouchi and Y. Omura, Space Weather, 5, S12003, doi:10.1029/2007SW000329, 2007.

List of Academic Presentations during 2007:

Omura, Y., N. Furuya, D. Summers, Theory and simulations on whistler-mode chorus generation and relativistic electron acceleration in the radiation belts, Union Radio-Scientifique Internationale (URSI) 2007, Ottawa, Canada, 22- 26 July 2007.
Omura, Y., Y. Katoh, N. Furuya, D. Summers, Simulations of chorus waves and accelerations of electrons to relativistic energie, International Symposium on Radio Systems and Space Plasma (ISRSSP), Sofia, Bulgaria, 2-5 September 2007.

2008 G-COE Research Outcome:

Theory and simulation of the generation of whistler-mode chorus, Y. Omura, Y. Katoh, and D. Summers, Journal of Geophysical Research, vol. 113, A04223, doi:10.1029/2007JA012622, 2008.
Theory and simulation of the generation of whistler-mode chorus, Y. Omura, Y. Katoh, and D. Summers, Journal of Geophysical Research, vol. 113, A04223, doi:10.1029/2007JA012622, 2008.
Relativistic turning acceleration of radiation belt electrons by whistler mode chorus, N. Furuya, Y. Omura, and D. Summers, Journal of Geophysical Research, vol. 113, A04224, doi:10.1029/2007JA012478, 2008.
Electromagnetic Particle-In-Cell simulation on the impedance of a dipole antenna surrounded by an ion sheath, Miyake, Y., H. Usui, H. Kojima, Y. Omura, and H. Matsumoto, Radio Sci., 43, RS3004, doi:10.1029/2007RS003707, 2008
Spacecraft Plasma Environment Analysis via Large Scale 3D Plasma Particle Simulation, M. Okada, H. Usui, Y. Omura, H. O. Ueda, T. Murata and T. Sugiyama, High-Performance Computing,, Lecture Notes in Computer Science (LNCS), Springer-Verlag, Volume 4759/2008 DOI 10.1007/978-3-540-77704-5, pp. 383-392, 2008.
Orbital Dynamics of Solar Sails for Geomagnetic Tail Exploration, Journal of Spacecraft and Rockets, T. Oyama, H. Yamakawa, and Y. Omura, vol.45, no. 2, 2008
Full particle simulation of whistler-mode rising 1 chorus emissions in the magnetosphere, M. Hikishima, S. Yagitani, Y. Omura, and I. Nagano, Journal of Geophysical Research, 114, A01203, doi:10.1029/2008JA013625, 2009
Rapid energization of radiation belt electrons by nonlinear wave trapping, Y. Katoh, Y. Omura, D. Summers, Ann. Geophys., 26, 3451-3456, 2008.
Simultaneous Satellite Observations of VLF Chorus, Hot and Relativistic Electrons in a Magnetic Storm“Recovery”, Phase, Y. Kasahara, Y. Miyoshi, Y. Omura, O.P. Verkhoglyadova3, I. Nagano, I. Kimura, and B. T. Tsurutani,Geophysical Research Letters, 36, L01106, doi:10.1029/2008GL036454, 2009.

List of Academic Presentations during 2008:

Y. Omura and D.Summers, "Relativistic Electron Acceleration by Whistler-mode Chorus Emissions Associated with Substorms", Asia Oceania Geosciences Society (AOGS) 2008, Busan, Korea, 16-20 June 2008.
Y. Omura, Nonlinear wave growth theory of whistler-mode chorus emissions induced by substorms, 37th Committee on Space Research(COSPAR) Scientific Assembly Montreal, Canada, 13-20 July 2008.
Y. Omura, Theory and simulation of the generation of whistler-mode chorus emissions, 3rd VERSIM Workshop 2008, Tihany, Hungary, 15-20 September 2008.

2009 G-COE Research Outcome:

M. Hikishima, S. Yagitani, Y. Omura, and I. Nagano, “Full particle simulation of whistler-mode rising chorus emissions in the magnetosphere”, Journal of Geophysical Research, 114, A01203, doi:10.1029/2008JA013625, 2009.
Y. Kasahara, Y. Miyoshi, Y. Omura, O.P. Verkhoglyadova, I. Nagano, I. Kimura, and B. T. Tsurutani, “Simultaneous Satellite Observations of VLF Chorus, Hot and Relativistic Electrons in a Magnetic Storm “Recovery” Phase”, Geophysical Research Letters, 36, L01106, doi:10.1029/2008GL036454, 2009.
O. P. Verkhoglyadova, B. T. Tsurutani, Y. Omura, and S. Yagitani, “Properties of dayside nonlinear rising tone chorus emissions at large L observed by GEOTAIL”, Earth Planets Space, 61, 625-628, 2009.
Y. Omura, , M. Hikishima, Y. Katoh, D. Summers, and S. Yagitani, “Nonlinear mechanisms of lower band and upper band VLF chorus emissions in the magnetosphere”, Journal Geophysical Research, 114, A07217, doi:10.1029/2009JA014206, 2009
M. Hikishima, S. Yagitani, Y. Omura, and I. Nagano, “Coherent nonlinear scattering of energetic electrons in the process of whistler-mode chorus generation”, Journal of Geophysical Research, 114, A10205, doi:10.1029/2009JA014371, 2009.
M. Shoji, Y. Omura, B. T. Tsurutani, O. P. Verkhoglyadova, and B. Lembege, “Mirror instability and L-mode electromagnetic ion cyclotron instability: competition in the Earth's magnetosheath”, Journal of Geophysical Research, 114, A10203, doi:10.1029/2008JA014038, 2009.
H. Fukuhara, H. Kojima, Y. Ueda, Y. Omura, Y. Katoh, and H. Yamakawa, “A new instrument for the study of wave-particle interactions in space: One-chipWave-Particle Interaction Analyzer”, Earth Planets Space, 61, 765-778, 2009.
H. Nakashima, Y. Miyake, H. Usui, Y. Omura, “OhHelp: A Scalable Domain-Decomposing Dynamic Load Balancing for Particle-in-Cell Simulations”, International Conference on Supercomputing, June 8-12, 2009, Yorktown Heights, New York, USA. 2009.
K. H. Lee, Y. Omura, L. C. Lee, and C. S. Wu, “Nonlinear saturation of cyclotron maser instability associated with energetic ring-beam electrons”, Physical Review Letters, 103, 105101, DOI: 10.1103/PhysRevLett.103.105101, 2009.

List of Academic Presentations during 2009:

Y. Omura, “Nonlinear particle dynamics associated with electrostatic solitary waves and whistler-mode chorus emissions in the magnetosphere”, 17th Cluster Workshop, Uppsala, Sweden, 2009.5.12-15
Y. Omura, “Theory and simulations of nonlinear whistler-mode chorus waves in the magnetosphere”, Modern Challenges in Nonlinear Plasma Physics, A Conference honoring the Career of Dennis Papadopoulos, Sani Resort, Halkidiki, 2009.6.15-19
Yoshiharu OMURA, Mitsuru HIKISHIMA, Yuto KATOH, Danny SUMMERS, Satoshi YAGITANI, “Nonlinear Mechanisms of Lower Band and Upper Band VLF Chorus Emissions in the Magnetosphere”, Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Masafumi SHOJI, Yoshiharu OMURA, “Coalescence of Mirror Mode Structures: Nonlinear Particle Motion in the Magnetic Structures”, Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Yoshiharu Omura, “Nonlinear Wave-Particle Interactions in the Magnetosphere”(Meeting Room 301, 14:45 - 15:30, 12 August, 2009) (基調講演), Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Yoshiharu Omura, “Theory and simulations of nonlinear whistler-mode chorus waves in the radiation belts”, WCU International Workshop, Jeju, Korea, 2009.10.26-28
Yoshiharu Omura, Mitsuru Hikishima, and Yuto Katoh, “Electromagnetic particle simulations of whistler-mode chorus emissions”, 2009 Conference on Computational Physics (CCP 2009), Kaohsiung, Taiwan, 2009.12.15-19
Hikishima, M., S. Yagitani, Y. Omura, I. Nagano, “Coherent nonlinear scattering of energetic electrons in the process of whistler-mode chorus generation”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Omura, Y., M. Hikishima, Y. Katoh, D. Summers, S. Yagitani, “Nonlinear mechanisms of lower band and upper band VLF chorus emissions in the magnetosphere”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Katoh, Y. and Y. Omura, “Relationship between the frequency sweep rates and the wave amplitude in the generation process of whistler-mode chorus emissions”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Masafumi Shoji and Yoshiharu Omura, “Coalescence of Mirror Mode Structures: Nonlinear Particle Motion in the Magnetic Structures”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
K. H. Lee, Y. Omura, L. C. Lee, and C. S. Wu, “Nonlinear saturation of cyclotron maser instability associated with energetic ring-beam electrons”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Miyake, Y., H. Usui; and Y. Omura, “Development of Electromagnetic Spacecraft Environment Simulator (EMSES): application to the analysis of antenna-plasma interactions”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Ghosh, S. S., Y. Omura, A. Sen, G. S. Lakhina, “Numerical analysis of electron acoustic dromions and its application for boundary layer waves”, The 9th International School for Space Simulations, Paris, 2009.7.3-10
Yuto KATOH, Yoshiharu OMURA, “Amplitude Dependence of Frequency Sweep-Rate of Whistler-Mode Chorus Emissions”, Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Mitsuru HIKISHIMA, Satoshi YAGITANI, Yoshiharu OMURA, Isamu NAGANO, “Coherent Nonlinear Scattering of Energetic Electrons in the Process of Whistler-Mode Chorus Generation”, Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Yoshiya KASAHARA, Akihiko MURO, Yoshitaka GOTO, Kozo HASHIMOTO, Yoshiharu OMURA, Atsushi KUMAMOTO, Takayuki ONO, Hideo TSUNAKAWA, “Electron Plasma Wave and Electron Density Profile Around the Moon Observed by KAGUYA LRS/WFC”, Asia Oceania Geosciences Society, Singapore, 2009.8.11-15
Yoshiharu Omura, Mitsuru Hikishima, Yuto Katoh, Danny Summers, Satoshi Yagitani, “Nonlinear Mechanisms of lower band and upper band VLF chorus emissions in the magnetosphere”, 11th Scientific Assembly of International Association of Geomagnetism and Aeronomy, Sopron, Hungary, 2009.8.23-30
Masafumi Shoji; Yoshiharu Omura, “Nonlinear Evolution of Mirror Mode Structures”, The 126th Society of Geomagnetism and Earth, Planetary and Space Sciences Conference （2009 Autumn Conference）, Kanazawa University, 2009.9.27-30
Yuto Katoh; Yoshiharu Omura, “Study of the threshold of wave amplitude in generating chorus emissions”, The 126th Society of Geomagnetism and Earth, Planetary and Space Sciences Conference （2009 Autumn Conference）, Kanazawa University,2009.9.27-30
Mitsuru Hikishima; Yoshiharu Omura, “Formation of pancake distribution of electrons through nonlinear trapping by chorus emissions”, The 126th Society of Geomagnetism and Earth, Planetary and Space Sciences Conference （2009 Autumn Conference）, Kanazawa University, 2009.9.27-30

2010 Research Outcome:

Mitsuru Hikishima, Yoshiharu Omura, and Danny Summers, Microburst precipitation of energetic electrons associated with chorus wave generation, Geophysical Research Letters, VOL. 37, L07103, doi:10.1029/2010GL042678, 2010. (refereed)
J. S. Pickett, B. Grison, Y. Omura, M. J. Engebretson, I. Dandouras, A. Masson, M. L. Adrian, O. Santolik, P. M. E. Decreau, N. Cornilleau-Wehrlin, and D. Constantinescu, Cluster observations of EMIC triggered emissions in association with Pc1 waves near Earth’s plasmapause, Geophysical Research Letters, VOL. 37, L09104, doi:10.1029/2010GL042648, 2010. (refereed)
M. N. Nishino, M. Fujimoto, Y. Saito, S. Yokota, Y. Kasahara, Y. Omura, Y. Goto, K. Hashimoto, A. Kumamoto, T. Ono, H. Tsunakawa, M. Matsushima, F. Takahashi, H. Shibuya, H. Shimizu and T. Terasawa, Effect of the solar wind proton entry into the deepest lunar wake, Geophysical Research Letters, 2010. (refereed)
Yoshiharu Omura, Jolene Pickett, Benjamin Grison, Ondrej Santolik, Iannis Dandouras, Mark Engebretson, Pierrette M. E. Décréau, and Arnaud Masson, Theory and observation of electromagnetic ion cyclotron triggeredemissions in the magnetosphere, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, A07234, doi:10.1029/2010JA015300, 2010.(refereed)
K. Hashimoto, M. Hashitani, Y. Kasahara, Y. Omura, M. N. Nishino, Y. Saito, S. Yokota, T. Ono, H. Tsunakawa, H. Shibuya, M. Matsushima, H. Shimizu,and F. Takahashi, Electrostatic solitary waves associated with magnetic anomalies and wake boundary of the Moon observed by KAGUYA, GEOPHYSICAL RESEARCH LETTERS, VOL. 37, L19204, doi:10.1029/2010GL044529, 2010. (refereed)
Mitsuru Hikishima, Yoshiharu Omura, and Danny Summers, Self-consistent particle simulation of whistler mode triggered emissions, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, A12246, doi:10.1029/2010JA015860, 2010(refereed)

List of Academic Presentations during 2010:

Omura, Y., Pickett, J., Grison, B., Santolik, O., Dandouras, I., Engebretson, M., Decreau, P M., Masson, A., Theory and observation of electromagnetic ion cyclotron chorus emissions in the magnetosphere , Western Pacific Geophysics Meeting 2010, 2010/6/22-25, Taipei（Taiwan）
Yoshiharu Omura, Jolene Pickett, Benjamin Grison, et al., Theory and Observation of Electromagnetic Ion Cyclotron Triggered Emissions in the Magnetosphere, 7th AOGS Meeting, 2010/7/5-9, Hyderabad, India
Yoshiharu Omura, Theory and Simulations of VLF Chorus Emissions, 7th AOGS Meeting, 2010/7/5-9, Hyderabad, India
Yoshiharu Omura, Theory and Simulations of Whistler-Mode Chorus Emissions in the Magnetosphere (Session H), ISRSSP 2010, 2010/8/25-27, Sofia, Bulgaria
Y. Omura, M. Hikishima, D. Summers, Theory and Simulations of VLF Triggered Emissions, 4th VERSIM Workshop, 2010/9/13-17, Prague, Czech
Y. Omura, Plasma Waves and High Energy Particles in the Earth's Radiation Belts, AP-RASC'10, 2010/9/22-26, Toyama, Japan
Y. Omura, J. Pickett, B. Grison, O. Santolik, I. Dandouras, M. Engebretson, P. M. E. Decreau, Theory and Observation of Electromagnetic Ion Cyclotron Triggered Emissions in the Magnetosphere, AP-RASC'10, 2010/9/22-26, Toyama, Japan
Y. Omura, Theory and Simulations on Whistler-mode and EMIC Triggered Emissions, AGU Fall Meeting 2010, 2010/12/13-17, San Francisco, USA

2011 G-COE Research Outcome:

Yoshiharu Omura and David Nunn, Triggering process of whistler mode chorus emissionsin the magnetosphere, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, A05205,10PP. doi:10.1029/2010JA016280, published 11 May 2011.
Yuto Katoh and Yoshiharu Omura, Amplitude dependence of frequency sweep rates of whistler mode chorus emissions, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, A07201, doi:10.1029/2011JA016496, 2011, published 2 July 2011
Masafumi Shoji, Yoshiharu Omura, Benjamin Grison, Jolene Pickett, Iannis Dandouras, and Mark Engebretson, Electromagnetic ion cyclotron waves in the helium branch induced by multiple electromagnetic ion cyclotron triggered emissions, GEOPHYSICAL RESEARCH LETTERS, VOL. 38, L17102, doi:10.1029/2011GL048427, 2011/09
K. H. Lee, Y. Omura, and L. C. Lee1, A 2D simulation study of Langmuir, whistler, and cyclotron maser instabilities induced by an electron ring-beam distribution and L. C. Lee Citation: Phys. Plasmas 18, 092110 (2011); doi: 10.1063/1.3626562, http://dx.doi.org/10.1063/1.3626562, 2011
Danny Summers, Rongxin Tang, and Yoshiharu Omura, Effects of nonlinear wave growth on extreme radiation belt electron fluxes, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, A10226, doi:10.1029/2011JA016602, 2011

List of Academic Presentations during 2011:

Invited, Yoshiharu Omura, Formation process of relativistic electron flux through interaction with chorus emissions in the Earth’s inner magnetosphere(INVITED), AGU Chapman Conference on Dynamics of the Earth’s Radiation Belts and Inner Magnetosphere, St. John’s, Newfoundland and Labrador, Canada 2011, 17-22, July, 2011
Invited, Yoshiharu Omura, Particle Simulations of Whistler-mode Chorus and Electromagnetic Ion Cyclotron Waves (Invited), 10th International School for Space Simulations (ISSS-10), Banff, Canada. July 25-30, 2011
Invited, Yoshiharu Omura, H02.4 NONLINEAR MIRROR MODE STRUCTURES IN MULTIDIMENSIONAL MODELS, URSI　xxx General Assembly Istanbul, Turky, 15-Aug-11
D. Nunn, Y. Omura, H03.4 THE THEORY AND NUMERICAL MODELLING OF NON LINEAR WAVE PARTICLE INTERACTIONS IN OBLIQUE WHISTLERS, URSI　xxx General Assembly, Istanbul, Turky, 16, August, 2011
Y. Omura, D. Nunn, H03.5 TRIGGERING PROCESS OF WHISTLER-MODE CHORUS EMISSIONS IN THE MAGNETOSPHERE, URSI　xxx General Assembly, Istanbul, Turky, 16, August, 2011
M. N. Nishino, Y. Saito, Y. Kasahara, Y. Omura, K. Hashimoto, T. Ono, H. Tsunakawa, F. Takahashi, M. Fujimoto, WAVE EXCITATION IN THE LUNAR WAKE ASSOCIATED WITH SOLAR-WIND PROTON ENTRY, URSI　xxx General Assembly, Istanbul, Turky, 19, August, 2011
K. Hashimoto, M. Hashitani, Y. Omura, Y. Kasahara, H. Kojima, T. Ono, H. Tsunakawa, ELECTROSTATIC SOLITARY WAVES (ESWS) OBSERVED BY KAGUYA NEAR THE MOON, URSI　xxx General Assembly, Istanbul, Turky, 19, August, 2011
Y. Kasahara, S. Kitaguchi, Y. Goto, K. Hashimoto,Y. Omura, H. Kojima, PLASMA WAVES RELATED TO MINI-MAGNETOSPHERES OVER LUNAR MAGNETIC ANOMALIES OBSERVED BY LRS/WFC ONBOARD KAGUYA, URSI　xxx General Assembly, Istanbul, Turky, 19, August, 2011
Invited, Yoshiharu Omura, Nonlinear processes of whistler-mode chorus emissions and associated acceleration of relativistic electrons in the radiation belts, MIT Kavli Institute for Astrophysics and Space Research, Cambridge, USA, 2011, 13,09
Invited, Yoshiharu Omura, Nonlinear Wave-Particle Interactions in Space Plasmas, Boston University, Boston, USA, 2011, 15,09
Shoko Kobayashi, Yoshiharu Omura, Kazadi Sanga-Ngoie, Ragil Widyorini, Shuichi Kawai, Banbang Supriadi, The potential of polarimetric L-band SAR image decomposition in esitmating tree volume over industrial plantation forests, The Remote Sensing Society of Japan (RSSJ)、Aomoari、10 November 2011
Invited, Yoshiharu Omura, Nonlinear processes of whistler-mode chorus emissions and associated acceleration of relativistic electrons in the radiation belts, NCU, The institute of space science, Jung-Li City, ROC. Taiwan, 2011, 11, Nov