Study on global changes in radiation belt on the basis of nonlinear wave-particle interaction and nondiffusive particle transport

• Project/Area Number: 15H03732
• 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: Ebihara Yusuke 京都大学, 生存圏研究所, 准教授 (80342616)
• Co-Investigator(Kenkyū-buntansha): 田中 高史 九州大学, 国際宇宙天気科学・教育センター, 研究員 (70346766)
• Research Collaborator: OMURA yoshiharu ; Fok mei-ching
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000); Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 地球放射線帯 / サブストーム / 磁気嵐 / シミュレーション / 内部磁気圏 / 放射線帯 / 磁気嵐・サブストーム / ホイッスラー波 / 電子 / 磁気圏 / 惑星間空間衝撃波 / 超高層物理学

Outline of Final Research Achievements

We investigated global dynamics of the radiation belt by coupling the global magnetohydrodynamics simulation and drift advection simulation. An interplanetary shock results in compression in the inner magnetosphere, resulting in drift phase bunching. Linear growth rate of whistler waves did not increase largely. When the interplanetary magnetic field turns southward, the convection electric field increases and substorms takes place frequently. We showed that injected hot electrons result in an increase in the whistler mode waves due to linear mechanisms first, followed by nonlinear growth. These results indicate the importance of nonlinear wave-particle interaction and nondiffusive particle transport.

Academic Significance and Societal Importance of the Research Achievements

地球放射線帯は地球を取り囲む高エネルギー粒子の集合で、その消長を理解することは人類の宇宙活動を進める上で不可欠である。これまで線形的な波動粒子相互作用および拡散的な粒子輸送によって放射線帯変動が理解されていたが、大規模な数値シミュレーションによって非線形的な波動粒子相互作用および非拡散的な粒子輸送の重要性を陽に示すことができた。また、従来のように放射線帯を孤立した系として見做すのではなく、磁気圏システムとして理解することの重要性も示した。

Research Products

• [Int'l Joint Research] NASA(米国)
• [Journal Article] Characteristics of CME‐ and CIR‐driven ion upflows in the polar ionosphere (2019)
  • Author(s): Y. Ogawa K. Seki K. Keika Y. Ebihara
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 124 Issue: 5 Pages: 3637-3649
  • DOI: 10.1029/2018ja025870
  • Peer Reviewed
• [Journal Article] Signatures of substorm related overshielding electric field at equatorial latitudes under steady southward IMF Bz during main phase of magnetic storm (2019)
  • Author(s): Veenadhari B.、Kikuchi T.、Kumar Sandeep、Tulasi Ram S.、Chakrabarty D.、Ebihara Y.、Reeves G.D.
  • Journal Title: Advances in Space Research Volume: 印刷中 Issue: 10 Pages: 1975-1988
  • DOI: 10.1016/j.asr.2019.04.001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Celestial Sign in the Anglo-Saxon Chronicle in the 770s: Insights on Contemporary Solar Activity (2019)
  • Author(s): Hayakawa Hisashi、Stephenson F. Richard、Uchikawa Yuta、Ebihara Yusuke、Scott Christopher J.、Wild Matthew N.、Wilkinson Julia、Willis David M.
  • Journal Title: Solar Physics Volume: 294 Issue: 4 Pages: 42-42
  • DOI: 10.1007/s11207-019-1424-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simulation study of near-Earth space disturbances: 2. Auroral substorms (2019)
  • Author(s): Ebihara, Y.
  • Journal Title: Progress in Earth and Planetary Science Volume: 6:24 Issue: 1
  • DOI: 10.1186/s40645-019-0273-2
  • NAID: 120006579423
  • Peer Reviewed / Open Access
• [Journal Article] Do the Chinese Astronomical Records Dated AD 776 January 12/13 Describe an Auroral Display or a Lunar Halo? A Critical Re-examination (2019)
  • Author(s): Stephenson F. Richard、Willis David M.、Hayakawa Hisashi、Ebihara Yusuke、Scott Christopher J.、Wilkinson Julia、Wild Matthew N.
  • Journal Title: Solar Physics Volume: 294 Issue: 4 Pages: 36-36
  • DOI: 10.1007/s11207-019-1425-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Visualization of rapid electron precipitation via chorus element wave?particle interactions (2019)
  • Author(s): Ozaki M. et al.
  • Journal Title: Nature Communications Volume: 10 Issue: 1 Pages: 1-9
  • DOI: 10.1038/s41467-018-07996-z
  • NAID: 120006550406
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simulation study of near-Earth space disturbances: 1. Magnetic storms (2019)
  • Author(s): Ebihara, Y.
  • Journal Title: Progress in Earth and Planetary Science Volume: 6:16 Issue: 1
  • DOI: 10.1186/s40645-019-0264-3
  • NAID: 120006576447
  • Peer Reviewed / Open Access
• [Journal Article] Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station (2019)
  • Author(s): Kataoka, R., T. Nishiyama, Y. Tanaka, A. Kadokura, H. A. Uchida, Y. Ebihara, M. Ejiri, Y. Tomikawa, M. Tsutsumi, K. Sato, Y. Miyoshi, K. Shiokawa, S. Kurita, Y. Kasahara, M. Ozaki, K. Hosokawa, S. Matsuda, I. Shinohara, T. Takashima, T. Sato, T. Mitani, T. Hori, and N. Higashio
  • Journal Title: Earth, Planets and Space Volume: 71:9 Issue: 1 Pages: 1-10
  • DOI: 10.1186/s40623-019-0989-7
  • NAID: 120006554807
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] New Diagnosis for Energy Flow From Solar Wind to Ionosphere During Substorm: Global MHD Simulation (2019)
  • Author(s): Ebihara Y.、Tanaka T.、Kamiyoshikawa N.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 124 Issue: 1 Pages: 360-378
  • DOI: 10.1029/2018ja026177
  • NAID: 120006579424
  • Peer Reviewed / Open Access
• [Journal Article] On the Driver of Daytime Pc3 Auroral Pulsations (2019)
  • Author(s): Motoba T.、Ebihara Y.、Ogawa Y.、Kadokura A.、Engebretson M. J.、Angelopoulos V.、Gerrard A. J.、Weatherwax A. T.
  • Journal Title: Geophysical Research Letters Volume: 46 Issue: 2 Pages: 553-561
  • DOI: 10.1029/2018gl080842
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The extreme space weather event in September 1909 (2018)
  • Author(s): Hayakawa Hisashi、Ebihara Yusuke、Cliver Edward W、Hattori Kentaro、Toriumi Shin、Love Jeffrey J、Umemura Norio、Namekata Kosuke、Sakaue Takahito、Takahashi Takuya、Shibata Kazunari
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 484 Issue: 3 Pages: 4083-4099
  • DOI: 10.1093/mnras/sty3196
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Microscopic Observations of Pulsating Aurora Associated With Chorus Element Structures: Coordinated Arase Satellite‐PWING Observations (2018)
  • Author(s): Ozaki M. et al.
  • Journal Title: Geophysical Research Letters Volume: 45 Issue: 22 Pages: 1-10
  • DOI: 10.1029/2018gl079812
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Cooperatives Roles of Dynamics and Topology in Generating the Magnetosphere-Ionosphere Disturbances: Case of the Theta Aurora (2018)
  • Author(s): Tanaka T.、Obara T.、Watanabe M.、Fujita S.、Ebihara Y.、Kataoka R.、Den M.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 123 Issue: 12 Pages: 9991-9991
  • DOI: 10.1029/2018ja025514
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Low-latitude Aurorae during the Extreme Space Weather Events in 1859 (2018)
  • Author(s): Hayakawa Hisashi、Ebihara Yusuke、Hand David P.、Hayakawa Satoshi、Kumar Sandeep、Mukherjee Shyamoli、Veenadhari B.
  • Journal Title: The Astrophysical Journal Volume: 869 Issue: 1 Pages: 57-57
  • DOI: 10.3847/1538-4357/aae47c
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sporadic auroras near the geomagnetic equator: in the Philippines, on 27 October 1856 (2018)
  • Author(s): Hayakawa Hisashi、Vaquero Jos? M.、Ebihara Yusuke
  • Journal Title: Annales Geophysicae Volume: 36 Issue: 4 Pages: 1153-1160
  • DOI: 10.5194/angeo-36-1153-2018
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Great Space Weather Event during 1872 February Recorded in East Asia (2018)
  • Author(s): Hayakawa Hisashi、Ebihara Yusuke、Willis David M.、Hattori Kentaro、Giunta Alessandra S.、Wild Matthew N.、Hayakawa Satoshi、Toriumi Shin、Mitsuma Yasuyuki、Macdonald Lee T.、Shibata Kazunari、Silverman Sam M.
  • Journal Title: The Astrophysical Journal Volume: 862 Issue: 1 Pages: 15-15
  • DOI: 10.3847/1538-4357/aaca40
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A great space weather event in February 1730 (2018)
  • Author(s): Hayakawa Hisashi、Ebihara Yusuke、Vaquero Jos? M.、Hattori Kentaro、Carrasco V?ctor M. S.、de la Cruz Gallego Mar?a、Hayakawa Satoshi、Watanabe Yoshikazu、Iwahashi Kiyomi、Tamazawa Harufumi、Kawamura Akito D.、Isobe Hiroaki
  • Journal Title: Astronomy & Astrophysics Volume: 616 Pages: A177-A177
  • DOI: 10.1051/0004-6361/201832735
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Theory, modeling, and integrated studies in the Arase (ERG) project (2018)
  • Author(s): Seki Kanako、Miyoshi Yoshizumi、Ebihara Yusuke、Katoh Yuto、Amano Takanobu、Saito Shinji、Shoji Masafumi、Nakamizo Aoi、Keika Kunihiro、Hori Tomoaki、Nakano Shin’ya、Watanabe Shigeto、Kamiya Kei、Takahashi Naoko、Omura Yoshiharu、Nose Masahito、Fok Mei-Ching、Tanaka Takashi、Ieda Akimasa、Yoshikawa Akimasa
  • Journal Title: Earth, Planets and Space Volume: 70 Issue: 1 Pages: 17-17
  • DOI: 10.1186/s40623-018-0785-9
  • NAID: 120006517789
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Energy flow exciting field-aligned current at substorm expansion onset (2018)
  • Author(s): Kamiya, K., K. Seki, S. Saito, T. Amano, and Y. Miyoshi
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 122 Issue: 12
  • DOI: 10.1002/2017ja024294
  • Peer Reviewed
• [Journal Article] Why does substorm-associated auroral surge travel westward? (2018)
  • Author(s): Ebihara, Y., and T. Tanaka
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 60 Issue: 1 Pages: 014024-014024
  • DOI: 10.1088/1361-6587/aa89fd
  • NAID: 120006579425
  • Peer Reviewed / Open Access
• [Journal Article] Formation of multiple energy dispersion of H+, He+, and O+ ions in the inner magnetosphere in response to interplanetary shock (2017)
  • Author(s): Tsuji,_H.,_Y. Ebihara, and_T. Tanaka_
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 122 Issue: 4 Pages: 4387-4397
  • DOI: 10.1002/2016ja023704
  • Peer Reviewed
• [Journal Article] Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents (2017)
  • Author(s): Hayakawa Hisashi、Iwahashi Kiyomi、Ebihara Yusuke、Tamazawa Harufumi、Shibata Kazunari、Knipp Delores J.、Kawamura Akito D.、Hattori Kentaro、Mase Kumiko、Nakanishi Ichiro、Isobe Hiroaki
  • Journal Title: The Astrophysical Journal Volume: 850 Issue: 2 Pages: L31-L31
  • DOI: 10.3847/2041-8213/aa9661
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Possible cause of extremely bright aurora witnessed in East Asia on 17 September 1770 (2017)
  • Author(s): Ebihara, Y., H. Hayakawa, K. Iwahashi, H. Tamazawa, A. D. Kawamura., H. Isobe
  • Journal Title: Space Weather Volume: 15 Issue: 10 Pages: 1373-1382
  • DOI: 10.1002/2017sw001693
  • NAID: 120006579431
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Records of auroral candidates and sunspots in Rikkokushi, chronicles of ancient Japan from early 7th century to 887 (2017)
  • Author(s): Hayakawa Hisashi、Iwahashi Kiyomi、Tamazawa Harufumi、Ebihara Yusuke、Kawamura Akito Davis、Isobe Hiroaki、Namiki Katsuko、Shibata Kazunari
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 6 Pages: 1-15
  • DOI: 10.1093/pasj/psx087
  • Peer Reviewed / Open Access
• [Journal Article] Propagation and evolution of electric fields associated with solar wind pressure pulses based on spacecraft and ground-based observations (2017)
  • Author(s): N. Takahashi, Y. Kasaba, Y. Nishimura, A. Shinbori, T. Kikuchi, T. Hori, Y. Ebihara, N. Nishitani
  • Journal Title: Journal of Geophysical Research Volume: 122 Issue: 8 Pages: 8446-8461
  • DOI: 10.1002/2017ja023990
  • Peer Reviewed / Open Access
• [Journal Article] Global simulation study for the time sequence of events leading to the subsorm onset (2017)
  • Author(s): Tanaka, T., Y. Ebihara, , M. Watanabe, M. Den, S. Fujita, T. Kikuchi, K. Hashimoto, and R. Kataoka
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 122 Issue: 6 Pages: 6210-6239
  • DOI: 10.1002/2017ja024102
  • Peer Reviewed
• [Journal Article] Impact of substorm-time O+ outflow on ring current enhancement (2017)
  • Author(s): Nakayama, Y., Y. Ebihara, M. -C. Fok, and T. Tanaka
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 122 Issue: 6 Pages: 6304-6317
  • DOI: 10.1002/2016ja023766
  • NAID: 120007187511
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Records of sunspots and aurora candidates in the Chinese official histories of the Yu?n and M?ng dynasties during 1261?1644 (2017)
  • Author(s): Hayakawa Hisashi、Tamazawa Harufumi、Ebihara Yusuke、Miyahara Hiroko、Kawamura Akito Davis、Aoyama Tadanobu、Isobe Hiroaki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 4 Pages: 65-65
  • DOI: 10.1093/pasj/psx045
  • Peer Reviewed / Open Access
• [Journal Article] The role of interplanetary shock orientation on SC/SI rise time and geoeffectiveness (2017)
  • Author(s): Selvakumaran, R., B. Veenadhari, Y. Ebihara, Sandeep kumar, D.S.V.V.D Prasad
  • Journal Title: Advances in Space Research Volume: 59 Issue: 5 Pages: 1425-1434
  • DOI: 10.1016/j.asr.2016.12.010
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Records of sunspot and aurora activity during 581-959 CE in Chinese official histories in the periods of Sui, Tang, and the Five Dynasties and Ten Kingdoms (2017)
  • Author(s): Tamazawa, H., A. D. Kawamura, H. Hayakawa, A. Tsukamoto, H. Isobe, and Y. Ebihara
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 2
  • DOI: 10.1093/pasj/psw132
  • Peer Reviewed / Open Access
• [Journal Article] The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Zuqnin (2017)
  • Author(s): Hayakawa, H., Y. Mitsuma, Y. Fujiwara, A. D. Kawamura, R. Kataoka, Y. Ebihara, S. Kosaka, K. Iwahashi, H. Tamazawa, and H. Isobe
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 2 Pages: 1-13
  • DOI: 10.1093/pasj/psw128
  • Peer Reviewed / Open Access
• [Journal Article] Fast-moving diffuse auroral patches: A new aspect of daytime Pc3 auroral pulsations (2016)
  • Author(s): Motoba, T., Y. Ebihara, A. Kadokura, M. J. Engebretson, M. R. Lessard, A. T. Weatherwax, and A. J. Gerrard
  • Journal Title: J. Geophys. Res., Space Physics Volume: 122 Issue: 2 Pages: 1542-1554
  • DOI: 10.1002/2016ja023285
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Earliest Datable Records of Aurora-like Phenomena in the Astronomical Diaries from Babylonia (2016)
  • Author(s): Hayakawa, H., Y. Mitsuma, Y. Ebihara, A. D. Kawamura, H. Miyahara, H. Tamazawa, and H. Isobe,
  • Journal Title: Earth, Planets and Space Volume: 68:195 Issue: 1 Pages: 195-195
  • DOI: 10.1186/s40623-016-0571-5
  • NAID: 120005973251
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Historical aurora evidence for great magnetic storms in 990s, Solar Physics (2016)
  • Author(s): Hayakawa, H., H. Tamazawa, Y. Uchiyama, Y. Ebihara, H. Miyahara, S. Kosaka, K. Iwahashi, and H. Isobe
  • Journal Title: Solar Physics Volume: 292:12 Issue: 1 Pages: 12-12
  • DOI: 10.1007/s11207-016-1039-2
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Void structure of O+ ions in the inner magnetosphere observed by the Van Allen Probes (2016)
  • Author(s): Nakayama, Y., Y. Ebihara, S. Ohtani, M. Gkioulidou, K. Takahashi, L. M. Kistler, and T. Tanaka
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 121 Issue: 12 Pages: 11698-11713
  • DOI: 10.1002/2016ja023013
  • NAID: 120007187512
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] ast Asian Observations of Low Latitude Aurora during the Carrington Magnetic Storm (2016)
  • Author(s): Hayakawa, H., K. Iwahashi, H. Tamazawa, H. Isobe, R. Kataoka, Y. Ebihara, H. Miyahara, A. D. Kawamura, K. Shibata
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 99-99
  • DOI: 10.1093/pasj/psw097
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Generation of field-aligned current (FAC) and convection through the formation of pressure regimes: Correction for the concept of Dungey's convection (2016)
  • Author(s): Tanaka, T., M. Den, S. Fujita, Y. Ebihara, T. Kikuchi, K. Hashimoto, R. Kataoka
  • Journal Title: J. Geophys. Res. Space Phys. Volume: 121 Issue: 9 Pages: 8695-9711
  • DOI: 10.1002/2016ja022822
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evolution of the current system during solar wind pressure pulses based on aurora and magnetometer observations (2016)
  • Author(s): Y. Nishimura, T. Kikuchi, Y. Ebihara, A. Yoshikawa, S. Imajo, W. Li, H. Utada
  • Journal Title: Earth Planets Space Volume: 68 Issue: 1 Pages: 1-16
  • DOI: 10.1186/s40623-016-0517-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fast modulations of pulsating proton aurora related to subpacket structures of Pc1 geomagnetic pulsations at subauroral latitudes (2016)
  • Author(s): M. Ozaki, K. Shiokawa, Y. Miyoshi, R. Kataoka, S. Yagitani, T. Inoue, C.-W Jun, R. Nomura, K. Sakaguchi, Y. Otsuka, M. Shoji, I. Schofield, M. Connors, V. K. Jordanova
  • Journal Title: Geophysical Research Letters Volume: 43 Issue: 15 Pages: 7859-7866
  • DOI: 10.1002/2016gl070008
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Quasi-periodic rapid motion of pulsating auroras (2016)
  • Author(s): Yoko Fukuda, Ryuho Kataoka, Yoshizumi Miyoshi, Yuto Katoh, Takanori Nishiyama, Kazuo Shiokawa, Yusuke Ebihara, Donald Hampton, Naomoto Iwagami
  • Journal Title: Polar Science Volume: 印刷中 Issue: 3 Pages: 183-191
  • DOI: 10.1016/j.polar.2016.03.005
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Substorm simulation: Quiet and N-S arcs preceding auroral breakup (2016)
  • Author(s): Ebihara, Y. and T. Tanaka
  • Journal Title: Journal of Geophysical Research Space Physics Volume: 121 Issue: 2 Pages: 1201-1218
  • DOI: 10.1002/2015ja021831
  • NAID: 120006579427
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Pulsating proton aurora caused by rising tone Pc1 waves (2016)
  • Author(s): Nomura, R., K. Shiokawa, Y. Omura, Y. Ebihara, Y. Miyoshi, K. Sakaguchi, Y. Otsuka, and M. Connors
  • Journal Title: J. Geophys. Res. Space Physics Volume: 121 Issue: 2 Pages: 1608-1618
  • DOI: 10.1002/2015ja021681
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High-speed stereoscopy of aurora (2016)
  • Author(s): Kataoka, R., Fukuda, Y., Uchida, H. A., Yamada, H., Miyoshi, Y., Ebihara, Y., Dahlgren, H., and Hampton, D.
  • Journal Title: Ann. Geophys. Volume: 34 Issue: 1 Pages: 41-44
  • DOI: 10.5194/angeo-34-41-2016
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Response of the incompressible ionosphere to the compression of the magnetosphere during the geomagnetic sudden commencements (2016)
  • Author(s): Kikuchi, T., K. K. Hashimoto, I., Tomizawa, Y. Ebihara, Y. Nishimura, T. Araki, A. Shinbori, B. Veenadhari, T. Tanaka, and T. Nagatsuma
  • Journal Title: Journal of Geophysical Research Volume: 121 Issue: 2 Pages: 1536-1556
  • DOI: 10.1002/2015ja022166
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Substorm simulation: Formation of westward traveling surge (2015)
  • Author(s): Ebihara, Y. and T. Tanaka
  • Journal Title: Journal of Geophysical Research Space Physics Volume: 120 Issue: 12 Pages: 10466-10484
  • DOI: 10.1002/2015ja021697
  • NAID: 120005690151
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A direct link between chorus emissions and pulsating aurora on timescales from milliseconds to minutes: A case study at subauroral latitudes (2015)
  • Author(s): Ozaki, M., S. Yagitani, K. Sawai, K. Shiokawa, Y. Miyoshi, R. Kataoka, A. Ieda, Y. Ebihara, M. Connors, S. Ian, Y. Katoh, Y. Otsuka, N. Sunagawa, and V. Jordanova
  • Journal Title: J. Geophys. Res. Volume: 120 Issue: 11 Pages: 9617-9631
  • DOI: 10.1002/2015ja021381
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Formation process of relativistic electron flux through interaction with chorus emissions in the Earth’s inner magnetosphere (2015)
  • Author(s): Y. Omura, Y. Miyashita, M. Yoshikawa, D. Summers, M. Hikishima, Y. Ebihara, and Y. Kubota
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 120 Issue: 11 Pages: 9545-9562
  • DOI: 10.1002/2015ja021563
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Relation between fine structure of energy spectra for pulsating aurora electrons and frequency spectra of whistler-mode chorus waves (2015)
  • Author(s): Miyoshi, Y., S. Saito, K. Seki, T. Nishiyama, R. Kataoka, K. Asamura, Y. Katoh, Y. Ebihara, T. Sakanoi, M. Hirahara, S. Oyama, S. Kurita, O. Santolik
  • Journal Title: J. Geophys. Res. Volume: 120 Issue: 9 Pages: 7728-7736
  • DOI: 10.1002/2015ja021562
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] What is the role of the magnetotail dipolarization in substorm expansion onset? (2018)
  • Author(s): Ebihara, Y. and Tanaka, T.
  • Organizer: AGU Fall Meeting 2018
  • Int'l Joint Research
• [Presentation] Global MHD simulation study on auroral substorm (2018)
  • Author(s): Ebihara, Y. and Tanaka, T.
  • Organizer: The 9th Symposium on Polar Science
  • Int'l Joint Research / Invited
• [Presentation] サブストーム時における太陽風から電離圏に至るエネルギーの流れ：MHD シミュ レーション (2018)
  • Author(s): 海老原祐輔、田中高史
  • Organizer: 地球電磁気・地球惑星圏学会 第１４４回総会及び講演会
• [Presentation] Energy transfer from solar wind to ionosphere: Global MHD simulation results (2018)
  • Author(s): Ebihara, Y. and Tanaka, T.
  • Organizer: Association of Asia Pacific Physical Societies, Division of Plasma Physics (AAPPS-DPP)
  • Int'l Joint Research / Invited
• [Presentation] Reconfiguration of electron phase space density in response to interplanetary shock, prolonged southward IMF and substorm (2018)
  • Author(s): Ebihara, Y., Ikeda, Y. Tanaka, T., and Fok, M. -C.
  • Organizer: Japan Geophysical Union
  • Int'l Joint Research
• [Presentation] Pathway and conversion of solar wind energy to ionosphere: Global MHD simulation result (2018)
  • Author(s): Ebihara, Y. and Tanaka, T.
  • Organizer: Japan Geophysical Union
  • Int'l Joint Research
• [Presentation] Pathway and conversion of energy incident on auroral and sub-auroral ionosphere at substorm expansion onset (2017)
  • Author(s): Yusuke Ebihara, Tanaka Takashi
  • Organizer: American Geophysical Union Fall Meeting
  • Int'l Joint Research
• [Presentation] サブストームオンセット時のエネルギーの流れと変換過程 (2017)
  • Author(s): 海老原祐輔, 田中高史
  • Organizer: 地球電磁気・地球惑星圏学会
• [Presentation] Global MHD simulation study on the evolution of substorms Global MHD simulation study on the evolution of substorms (2017)
  • Author(s): Yusuke Ebihara, Tanaka Takashi
  • Organizer: 1st Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Global MHD simulation study on the evolution of substorms (2017)
  • Author(s): Yusuke Ebihara, Tanaka Takashi
  • Organizer: European Physical Society Conference
  • Int'l Joint Research / Invited
• [Presentation] Mechanics and energetics of substorm expansion onset (2017)
  • Author(s): Yusuke Ebihara, Tanaka Takashi
  • Organizer: apan Geoscience Union
  • Int'l Joint Research
• [Presentation] Perspective of the study on the ring current - past, present and future (2016)
  • Author(s): 海老原 祐輔
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: サンフランシスコ（アメリカ）
  • Int'l Joint Research / Invited
• [Presentation] サブストーム拡大相オンセットの力学 (2016)
  • Author(s): 海老原 祐輔
  • Organizer: 地球電磁気・地球惑星圏学会 第140回総会及び講演会
  • Place of Presentation: 九州大学（福岡県・福岡市）
• [Presentation] サブストームの発達に対する磁気圏電離圏結合の役割：グローバルMHDシミュレーションによる研究 (2016)
  • Author(s): 海老原 祐輔
  • Organizer: 磁気圏・電離圏シンポジウム
  • Place of Presentation: 宇宙航空研究開発機構（神奈川県・相模原市）
  • Invited
• [Presentation] Substorm simulation: Sudden brightening and westward traveling surge of aurora (2016)
  • Author(s): 海老原 祐輔
  • Organizer: 18th International Congress of Plasma Physics
  • Place of Presentation: 高雄（台湾）
  • Int'l Joint Research / Invited
• [Presentation] Substorm simulation: Current system and auroral structure (2016)
  • Author(s): 海老原 祐輔
  • Organizer: Japan Geoscience Union 2016
  • Place of Presentation: 幕張メッセ（千葉県・千葉市）
  • Int'l Joint Research / Invited
• [Presentation] Substorm Simulation: Insight Into the Mechanisms of Initial Brightening and Westward Traveling Surge (2015)
  • Author(s): Y. Ebihara and T. Tanaka
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: アメリカ合衆国サンフランシスコ
  • Year and Date: 2015-12-18
  • Int'l Joint Research
• [Presentation] Simulation study on impact of interplanetary shock on trapped particles in the inner magnetosphere (2015)
  • Author(s): Y. Ebihara, M. -C. Fok, T. Tanaka, and H. Tsuji
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: アメリカ合衆国サンフランシスコ
  • Year and Date: 2015-12-14
  • Int'l Joint Research / Invited
• [Presentation] シミュレーションによる最新のサブストーム像 (2015)
  • Author(s): 海老原祐輔, 田中高史
  • Organizer: 第138回 地球電磁気･地球惑星圏学会 総会・講演会
  • Place of Presentation: 東京都・東京大学
  • Year and Date: 2015-11-03
  • Invited
• [Presentation] Mechanics of magnetic storms and particles in the inner magnetosphere (2015)
  • Author(s): Ebihara, Y., M.-C. Fok, and T. Tanaka
  • Organizer: Japan Geoscience Union
  • Place of Presentation: 千葉県・幕張メッセ
  • Year and Date: 2015-05-26
  • Int'l Joint Research