人工衛星－地上ネットワーク観測に基づく内部磁気圏の粒子変動メカニズムの研究

• Project/Area Number: 25247080
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Nagoya University
• Principal Investigator: 塩川 和夫 名古屋大学, 宇宙地球環境研究所, 教授 (80226092)
• Co-Investigator(Kenkyū-buntansha): 三好 由純 名古屋大学, 学内共同利用施設等, 准教授 (10377781) ; 大塚 雄一 名古屋大学, 学内共同利用施設等, 准教授 (40314025)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Discontinued (Fiscal Year 2016)
• Budget Amount: ¥38,350,000 (Direct Cost: ¥29,500,000、Indirect Cost: ¥8,850,000); Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2013: ¥21,060,000 (Direct Cost: ¥16,200,000、Indirect Cost: ¥4,860,000)
• Keywords: 磁気圏・電離圏 / 宇宙科学 / 超高層物理学 / 超高層大気環境 / 宇宙空間 / 国際情報交換（カナダ・ロシア） / 国際情報交換（カナダ、ロシア）

Outline of Annual Research Achievements

・ロシアのZhigansk観測点において、誘導磁力計による定常観測を平成28年9月14日より開始し、良好なデータが取得できていることを確認した。ロシアのZhigansk観測点を管轄するヤクーツクのIKFIA研究所に、平成28年9月末にVLFアンテナ、高感度全天カメラを送付した（平成27年度の本計画の繰り越し分による実施）。また、関連機器による定常観測が行われている既存の観測点であるアサバスカ、トロムソ、マガダン、パラツンカ、レゾリュート、国内の母子里、陸別、信楽、鹿児島、佐多などの自動観測を維持・継続した。
・アサバスカ、マガダン、パラツンカの誘導磁力計による5年間の同時観測データを統計的に解析して、Pc1帯地磁気脈動の振幅変調の観測点ごとに違いの季節・太陽活動度・地方時・地磁気活動度などへの依存性を明らかにした。この結果から、この波動の振幅変調が磁気圏ではなく電離圏の伝搬中にうなりによって発生していることを示唆した。また、アサバスカで1年間に観測されたVLF/ELF帯波動の統計解析を行い、この波動の季節・地方時・地磁気活動度などへの依存性を明らかにした。これらの波動は、人工衛星に悪影響を及ぼす放射線帯粒子の加速や消失を引き起こしていることがわかっており、今回の結果は、この加速・消失過程の時間・空間変化に示唆を与えるものである。
・なお、本計画は、研究代表者が平成28年度から別の特別推進研究の代表者になったために、平成28年度途中で廃止になった。本計画で予定されていたカナダ中部のアサバスカ、カナダの東海岸、及び、ロシアのZhigansk観測点における光学・電磁場計測は、この特別推進研究によって引き続きおこなわれることになった。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] アサバスカ大学/カルガリー大学(カナダ)
• [Int'l Joint Research] IKIR/IKFIA(ロシア連邦)
• [Int'l Joint Research] UCLA/ジェット推進研究所(米国)
• [Int'l Joint Research] オウル大学(フィンランド)
• [Int'l Joint Research] 宇宙物理学及び電波伝搬(IKIR)研究所/宇宙物理学及び超高層大気物理学(IKFIA)研究所(ロシア連邦)
• [Int'l Joint Research] アサバスカ大学(カナダ)
• [Int'l Joint Research] ソダンキュラ観測所(フィンランド)
• [Int'l Joint Research] アイオワ大学(米国)
• [Int'l Joint Research] 宇宙物理学及び電波伝搬(IKIR)研究所/宇宙物理学及び超高層大気物理学(IKFIA)研究所(ロシア連邦)
• [Int'l Joint Research] アサバスカ大学/ニューブランズウィック大学(カナダ)
• [Int'l Joint Research] ソダンキュラ観測所(フィンランド)
• [Int'l Joint Research] アイオワ大学(米国)
• [Journal Article] Lower thermospheric wind variations in auroral patches during the substorm recovery phase (2016)
  • Author(s): Oyama, S.-i., K. Shiokawa, Y. Miyoshi, K. Hosokawa, B. J. Watkins, J. Kurihara, T. T. Tsuda, and C. T. Fallen
  • Journal Title: Journal of Geophysical Research - Space Physics Volume: 121 Issue: 4 Pages: 3564-3577
  • DOI: 10.1002/2015ja022129
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Possible generation mechanisms for Pc1 pearl structures in the ionosphere, based on 6 years of ground observations in Canada, Russia, and Japan (2016)
  • Author(s): Jun C.-W, K. Shiokawa, M. Connors, I. Schofield, I. Poddelsky, and B. Shevtsov
  • Journal Title: J. Geophys. Res. Volume: 121 Issue: 5 Pages: 4409-4424
  • DOI: 10.1002/2015ja022123
  • NAID: 120005866824
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] ELF/VLF propagation at subauroral latitudes: Conjugate observation between the ground and Van Allen Probes A (2016)
  • Author(s): Martinez-Calderon, C., K. Shiokawa , Y. Miyoshi , K. Keika , M. Ozaki , I. Schofield , M. Connors , C. Kletzing , M. Hanzelka , O. Santolik , and W. Kurth
  • Journal Title: J. Geophys. Res. Volume: 121 Issue: 6 Pages: 1-10
  • DOI: 10.1002/2015ja022264
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [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] Isolated proton auroras and Pc1/EMIC waves at subauroral latitudes, in Auroral Dynamics and Space Weather (2016)
  • Author(s): Sakaguchi, K., K. Shiokawa, Y. Miyoshi, and M. Connors
  • Journal Title: in Auroral Dynamics and Space Weather, Geophysical Monograph 215, Edited by Yongliang Zhang and Larry J. Paxton, American Geophysical Union. Published by John Wiley & Sons, Inc. Volume: 215 Pages: 59-70
  • DOI: 10.1002/9781118978719.ch5
  • Peer Reviewed / Int'l Joint Research / 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] Statistical study of auroral fragmentation into patches (2015)
  • Author(s): Hashimoto A., K. Shiokawa, Y. Otsuka, S.-I. Oyama, S. Nozawa, T. Hori, M. Lester, and M. Johnsen
  • Journal Title: J. Geophys. Res. Volume: 120
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Statistical study of ELF/VLF emissions at subauroral latitudes in Athabasca, Canada (2015)
  • Author(s): Martinez, C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors
  • Journal Title: J. Geophys. Res. Volume: 120
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Coordinated airglow observations between IMAP/VISI and a ground-based all-sky imager on concentric gravity wave in the lower thermosphere, (2015)
  • Author(s): Perwitasari, S., T. Sakanoi, A. Yamazaki, Y. Otsuka, Y. Hozumi, Y. Akiya, A. Saito, K. Shiokawa, S. Kawamura
  • Journal Title: J. Geophysical Research Volume: 120 Issue: 11 Pages: 9706-9721
  • DOI: 10.1002/2015ja021424
  • Peer Reviewed / Int'l Joint Research / 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, I. Schofield, Y. Katoh, Y. Otsuka, N. Sunagawa, and V. K. Jordanova
  • Journal Title: J. Geophys. Res. Volume: 120
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Polarization analysis of VLF/ELF waves observed at subauroral latitudes during the VLF-CHAIN campaign (2015)
  • Author(s): Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield and M. Connors
  • Journal Title: Earth Planets Space Volume: 67 Issue: 1 Pages: 21-21
  • DOI: 10.1186/s40623-014-0178-7
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Daytime tweek atmospherics (2015)
  • Author(s): Ohya, H., K. Shiokawa, and Y. Miyoshi
  • Journal Title: J. Geophys. Res. Volume: 120 Issue: 1 Pages: 654-665
  • DOI: 10.1002/2014ja020375
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The geospace response to variable inputs from the lower atmosphere: A review of the progress made by Task Group 4 of CAWSES-II (2015)
  • Author(s): Oberheide, J., K. Shiokawa, S. Gurubaran, W. E. Ward, H. Fujiwara, M. J. Kosch, J. J. Makela and H. Takahashi
  • Journal Title: Progr. Earth Planet. Sci. Volume: 2:2 Issue: 1
  • DOI: 10.1186/s40645-014-0031-4
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Study of Pc1 pearl structures observed at multi-point ground stations in Russia Japan and Canada (2014)
  • Author(s): Jun, C.-W., K. Shiokawa, M. Connors, I. Schofield, I. Poddelsky, and B. Shevtsov
  • Journal Title: Earth Planets Space Volume: 66 Issue: 1
  • DOI: 10.1186/s40623-014-0140-8
  • Peer Reviewed / Open Access
• [Journal Article] CME front and severe space weather (2014)
  • Author(s): Balan, N., R. Skoug, S. Tulasi Ram, P. K. Rajesh, K. Shiokawa, Y. Otsuka, I. Batista, and T. Nakamura
  • Journal Title: J. Geophys. Res. Volume: 119
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Ground-based ELF/VLF chorus observations at subauroral latitudes - VLF-CHAIN Campaign (2014)
  • Author(s): Shiokawa, K., Y. Yokoyama, A. Ieda, Y. Miyoshi, R. Nomura, S. Lee, N. Sunagawa, Y. Miyashita, M. Ozaki, K. Ishizaka, S. Yagitani, R. Kataoka, F. Tsuchiya, I. Schofield, and M. Connors
  • Journal Title: J. Geophys. Res. Volume: 119
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Auroral fragmentation into patches (2014)
  • Author(s): Shiokawa, K., A. Hashimoto, T. Hori, K. Sakaguchi, Y. Ogawa, E. Donovan, E. Spanswick, M. Connors, Y. Otsuka, S.-I. Oyama, S. Nozawa, K. McWilliams
  • Journal Title: J. Geophys. Res. Volume: 119
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Study of ELF/VLF emissions at subauroral latitudes: ground and space observations (2016)
  • Author(s): Claudia Martinez-Calderon, K. Shiokawa, K. Keika, S. Kurita, M. Ozaki, I. Schofield, M. Connors, C. Kletzing, B. Kurth and O. Santolik
  • Organizer: 7th biennial VERSIM Symposium
  • Place of Presentation: Hermanus, South Africa
  • Year and Date: 2016-09-19
  • Int'l Joint Research / Invited
• [Presentation] Heliospheric Plasma Sheet (HPS) Impingement onto the Magnetosphere as a Cause of Relativistic Electron Dropouts (REDs) via Coherent EMIC Wave Scattering with Possible Consequences for Atmospheric Vorticity (2016)
  • Author(s): B.T. Tsurutani, R. Hajra, T. Tanimori, A.Takada, B. Remya, A.J. Mannucci, G.S. Lakhina, J.U. Kozyra, K. Shiokawa, L.C. Lee, E. Echer, R.V. Reddy, and W.D. Gonzalez
  • Organizer: 7th biennial VERSIM Symposium
  • Place of Presentation: Hermanus, South Africa
  • Year and Date: 2016-09-19
  • Int'l Joint Research
• [Presentation] Ground network observation of ISEE, Nagoya University, for the study of coupling processes in solar-terrestrial system (2016)
  • Author(s): Shiokawa, K., Y. Otsuka, T. Hiyama, N. Nishitani, Y. Miyoshi, and K. Kusano
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] カナダ、フィンランド、昭和基地のELF/VLF波動同時観測データの解析 (2016)
  • Author(s): 米津佑亮、塩川和夫、Martin Connors、尾崎光紀、J. K. Manninen、山岸久雄、岡田雅樹
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] 音声信号処理によるVLFエミッションの雑音除去 (2016)
  • Author(s): 出島工、尾崎光紀、八木谷聡、塩川和夫、三好由純、三好正人、平野晃宏、Martin Connors
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] Multi-event analysis for chorus waves and pulsating aurora at sub-auroral latitudes (2016)
  • Author(s): 澤井薫、尾崎光紀、八木谷聡、塩川和夫、三好由純、片岡龍峰、海老原祐輔、家田章正、Connors Martin
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] レベルセット法を用いたプロトンオーロラの形状特徴解析 (2016)
  • Author(s): 井上智寛、尾崎光紀、八木谷聡、塩川和夫、三好由純、片岡龍峰、海老原祐輔、野村麗子、坂口歌織、大塚雄一、Connors Martin
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] ELF/VLF wave generation associated with magnetospheric compression: conjugated observations from satellite- and subauroral ground-based instruments (2016)
  • Author(s): Martinez-Calderon、C., K. Shiokawa, K. Keika, M. Ozaki, I.Schofield, M. Connors, C. Kletzing and O. Santolik
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] Statistical characteristics of quasi-periodic Pc1/EMIC waves in the magnetosphere and the ionosphere (2016)
  • Author(s): Jun C.-W., K. Shiokawa, K. Takahashi, K. Paulson, I. Schofield, M. Connors, I. Poddelsky, B. Shevtsov, C. Kletzing, and J. Wygant
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] 地上カメラとTHEMIS衛星によるオーロラ指状構造の同時観測 (2016)
  • Author(s): 西 勝輝、塩川 和夫、Eric Donovan
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] National/International joint studies with the Tromsoe OMTI for studying the polar upper atmosphere (2016)
  • Author(s): Oyama S., K. Shiokawa, S. Nozawa, Y. Otsuka, Y. Miyoshi, and E. Turunen
  • Organizer: 日本地球惑星連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-22
• [Presentation] ELF/VLF waves related to magnetospheric compression: conjugated observations from satellite- and subauroral ground-based instruments (2015)
  • Author(s): C. Martinez-Calderon, K. Shiokawa, K. Keika, M. Ozaki, I.Schofield, M. Connors, C. Kletzing and O. Santolik
  • Organizer: AGU fall meeting
  • Place of Presentation: San Francisco
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Statistical study of propagation characteristics of Pc1 pearl structures using conjugated ground-satellite observations (2015)
  • Author(s): C.-W Jun, K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, B.Shevtsov, C. Kletzing, and J. Wygant
  • Organizer: AGU fall meeting
  • Place of Presentation: San Francisco
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Ground-based observations of a direct link between discrete chorus elements and the fast modulations of pulsating aurora (2015)
  • Author(s): Ozaki, Mitsunori, Kaoru Sawai, Satoshi Yagitani, Kazuo Shiokawa, Yoshizumi Miyoshi, Ryuho Kataoka, Akimasa Ieda, Yusuke Ebihara, and Martin Connors
  • Organizer: AOGS2015
  • Place of Presentation: Singapore
  • Year and Date: 2015-08-02
  • Int'l Joint Research
• [Presentation] Isolated proton auroras and Pc1/EMIC waves at subauroral latitudes (2015)
  • Author(s): Sakaguchi, K., K. Shiokawa, Y. Miyoshi, and M. Connors
  • Organizer: AOGS2015
  • Place of Presentation: Singapore
  • Year and Date: 2015-08-02
  • Int'l Joint Research
• [Presentation] Conjugated observations of ELF/VLF quasi-periodical emissions at the ground station in Athabasca, Canada and Van Allen Probes A (2015)
  • Author(s): C. Martinez C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I.Schofield, M. Connors, K. Kletzing and O. Santolik
  • Organizer: The 26th IUGG/IAGA General Assembly
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-06-22
  • Int'l Joint Research
• [Presentation] Ground-based observations of Pc1/EMIC waves and proton auroras at subauroral latitudes (2015)
  • Author(s): Shiokawa, K., C.-W. Jun, Y. Miyoshi, K. Sakaguchi, R. Nomura, M. Connors, and B. Shevtsov
  • Organizer: The 26th IUGG/IAGA General Assembly
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-06-22
  • Int'l Joint Research / Invited
• [Presentation] Auroral fragmentation into patches (2015)
  • Author(s): Shiokawa, K., A. Hashimoto, T. Hori, Y. Otsuka, S.-I. Oyama, S. Nozawa, K. Sakaguchi, Y. Ogawa, E. Donovan, E. Spanswick, M. Connors, K. McWilliams, M. Lester and M. G. Johnsen
  • Organizer: The 26th IUGG/IAGA General Assembly
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-06-22
  • Int'l Joint Research / Invited
• [Presentation] ELF/VLF observations at subauroral latitudes for understanding high-energy electron acceleration/loss processes in the inner magnetosphere (2015)
  • Author(s): Shiokawa, K., N. Sunagawa, C. Martinez C., Y. Miyoshi, M. Ozaki, R. Kataoka, and M. Connors
  • Organizer: The 26th IUGG/IAGA General Assembly
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-06-22
  • Int'l Joint Research / Invited
• [Presentation] Japanese Geospace Exploration: ERG PROJECT (2015)
  • Author(s): Miyoshi, Y., I. Shinohara, T. Takashima, K. Asamura, H. Matsumoto, N. Higashio, T. Mitani, S. Kasahara, S. Yokota, Y. Kazama, M. Hirahara, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, K. Shiokawa, K. Seki, Y. Nakamura, K. Nitta, S. Fukuda, E. Ogawa, T. Ono, and the ERG project team
  • Organizer: Korean Space Science Meeting
  • Place of Presentation: Korea
  • Year and Date: 2015-04-29
  • Int'l Joint Research
• [Presentation] ERG project: Importance of coordinated observations from satellite and ground (2015)
  • Author(s): Miyoshi, Y., I. Shinohara, T. Takashima, K. Asamura, K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, M. Hirahara, N. Higashio, H.Matsumoto, S. Kasahara, T. Mitani, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, T. Ono and ERG project group
  • Organizer: The third Inner Magnetosphere Coupling (IMC-III) workshop
  • Place of Presentation: Los Angeles, USA
  • Year and Date: 2015-03-23
  • Int'l Joint Research
• [Presentation] Plasmaspheric EMIC waves observed by the Akebono satellite (2015)
  • Author(s): Miyoshi, Y., Y. Kato, K. Sakaguchi, Y. Kasahara, S. Matsuda, K. Keika, N. Kitamura, M. Shoji, S. Hasegawa, A. Kumamoto, and K. Shiokawa
  • Organizer: The third Inner Magnetosphere Coupling (IMC-III) workshop
  • Place of Presentation: Los Angeles, USA
  • Year and Date: 2015-03-23
  • Int'l Joint Research
• [Presentation] Multi-point ground-based observations of the thermosphere and ionosphere over Asia and Oceania by STEL, Nagoya University (2015)
  • Author(s): Shiokawa K., and Y. Otsuka
  • Organizer: 3rd conference of Asia Oceania Space Weather Alliance (ASOWA)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-03-02
  • Int'l Joint Research / Invited
• [Presentation] Geospace Exploration Project ERG (2015)
  • Author(s): Miyoshi, Y. . Shinohara, T. Takashima, K. Asamura, H. Matsumoto, N. Higashio, S. Mitani, S. Kasahara, S. Yokota, Y. Kazama, M. Hirahara, Y. Kasaba, A.Matsuoka, H. Kojima, M. Fujimoto,K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, T. Segawa, Y.Nakamura, K. Nitta, S. Fukuda, E. Ogawa, and T. Ono
  • Organizer: United Nations/Japan Workshop on Space Weather
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-03-02
  • Int'l Joint Research
• [Presentation] ERGプロジェクトにおける連携地上観測ネットワーク (2015)
  • Author(s): 塩川和夫、藤井良一、橋本久美子、細川敬祐、石井守、門倉昭、河野英昭、菊池崇、北村健太郎、三好由純、長妻努、西谷望、尾花由紀、小川泰信、大矢浩代、岡田雅樹、大塚雄一、尾崎光紀、佐藤夏雄、篠原学、田所裕康、田口真、田中良昌、谷森達、土屋史紀、山岸久雄、吉川顕正、行松彰、湯元清文
  • Organizer: 宇宙科学シンポジウム
  • Place of Presentation: JAXA宇宙科学研究所
  • Year and Date: 2015-01-06
• [Presentation] Statistics of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada and their correspondence to the Van Allen Probes observations (2014)
  • Author(s): Martinez C. C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield, M. Connors, and K. Kletzing
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Fransisco, USA
  • Year and Date: 2014-12-15
  • Int'l Joint Research
• [Presentation] Possible effects of ionospheric beating for the formation of Pc1 pearl structures based on 6-year ground observations in Canada, Russia and Japan (2014)
  • Author(s): C.-W Jun, K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Fransisco, USA
  • Year and Date: 2014-12-15
  • Int'l Joint Research
• [Presentation] Statistical study of auroral fragmentation into patches (2014)
  • Author(s): Hashimoto, A., K. Shiokawa, Y. Otsuka, S. Oyama, S. Nozawa, T. Hori and M. Lester
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Fransisco, USA
  • Year and Date: 2014-12-15
  • Int'l Joint Research
• [Presentation] Statistical study of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada (2014)
  • Author(s): Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I.Schofield and M. Connors
  • Organizer: International Conference on Substorms -12
  • Place of Presentation: Ise-Shima, Japan
  • Year and Date: 2014-11-10
  • Int'l Joint Research
• [Presentation] High-time resolution correlation analysis between VLF/ELF chorus waves and pulsating aurora observed at Athabasca, Canada (2014)
  • Author(s): Sunagawa, N., K. Shiokawa, Y. Miyoshi, R. Kataoka, M. Ozaki, K. Sawai, I. Schofield, and M. Connors
  • Organizer: International Conference on Substorms -12
  • Place of Presentation: Ise-Shima, Japan
  • Year and Date: 2014-11-10
  • Int'l Joint Research
• [Presentation] Auroral fragmentation into patches during the substorm recovery phase (2014)
  • Author(s): Shiokawa, K., Ayumi Hashimoto, Tomoaki Hori, Kaori Sakaguchi, Yasunobu Ogawa, Eric Donovan, Emma Spanswick, Martin Connors, Yuichi Otsuka, Shin-Ichiro Oyama, Satonori Nozawa, and Kathryn McWilliams
  • Organizer: International Conference on Substorms -12
  • Place of Presentation: Ise-Shima, Japan
  • Year and Date: 2014-11-10
  • Int'l Joint Research
• [Presentation] Importance of ionospheric beating for the formation of Pc1 pearl structures based on ground observations in Canada, Russia and Japan (2014)
  • Author(s): Jun, C.-W., K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: International Conference on Substorms -12
  • Place of Presentation: Ise-Shima, Japan
  • Year and Date: 2014-11-10
  • Int'l Joint Research
• [Presentation] Observations of daytime tweek atmospherics (2014)
  • Author(s): 大矢浩代、塩川和夫、三好由純
  • Organizer: 第136回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 長野県松本文化会館
  • Year and Date: 2014-10-31
• [Presentation] カナダ・アサバスカで同時に観測されたVLF/ELF波動とパルセィティングオーロラの数十秒スケールでスイッチングする相関関係 (2014)
  • Author(s): 砂川尚貴、塩川和夫、三好由純、片岡龍峰、尾崎光紀、澤井薫、I.Schofield、M.Connors
  • Organizer: 第136回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 長野県松本文化会館
  • Year and Date: 2014-10-31
• [Presentation] Periods of the lower ionosphere disturbances observed in the phase variations of LF transmitter signal (2014)
  • Author(s): 大矢浩代、塩川和夫、土屋史紀
  • Organizer: 第136回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 長野県松本文化会館
  • Year and Date: 2014-10-31
• [Presentation] パルセーティングオーロラとコーラス波動の周期性に対する地球磁場勾配の影響 (2014)
  • Author(s): 澤井薫、尾崎光紀、八木谷聡、塩川和夫、三好由純、家田章正、片岡龍峰、海老原祐輔、加藤雄人
  • Organizer: 第136回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 長野県松本文化会館
  • Year and Date: 2014-10-31
• [Presentation] Optical and ULF/ELF/VLF wave measurements at longitudinally-distributed stations at subauroral latitudes (2014)
  • Author(s): Shiokawa, K., C.-W. Jun, C. Martinez, N. Sunagawa, Y. Miyoshi, T. Nagatsuma, M. Ishii, M. Ozaki, M. Connors, I. Schofield, P. T. Jayachandran, I. Poddelsky, B. Shevtsov, and D. Baishev
  • Organizer: SCOSTEP STP13 Symposium
  • Place of Presentation: Xi'an, China
  • Year and Date: 2014-10-12
  • Int'l Joint Research
• [Presentation] Middle-latitude auroras observed at Kamchatka during the three geomagnetic storms of March 9, 2012 and March 17 and June 1, 2013 (2014)
  • Author(s): Shiokawa, K., Y. Otsuka, S. Suzuki, S. Smirnov, and B. Shevtsov
  • Organizer: SCOSTEP STP13 Symposium
  • Place of Presentation: Xi'an, China
  • Year and Date: 2014-10-12
  • Int'l Joint Research
• [Presentation] Response of geomagnetic field and ionosphere-thermosphere system to the major space weather events in MinMax-23/24 (2014)
  • Author(s): Balan, N., K. Shiokawa, Y. Otsuka and I. S. Batista
  • Organizer: SCOSTEP STP13 Symposium
  • Place of Presentation: Xi'an, China
  • Year and Date: 2014-10-12
  • Int'l Joint Research
• [Presentation] CME front and severe space weather (2014)
  • Author(s): Balan, N., R. Skoug, S. Tulasi Ram, K.Shiokawa, Y. Otsuka and I. S. Batista
  • Organizer: SCOSTEP STP13 Symposium
  • Place of Presentation: Xi'an, China
  • Year and Date: 2014-10-12
  • Int'l Joint Research
• [Presentation] Ground-based optical and ULF/ELF/VLF wave measurements at subauroral latitudes prepared for the ERG project (2014)
  • Author(s): Shiokawa, K., C.-W. Jun, C. Martinez, N. Sunagawa, Y. Miyoshi, T. Nagatsuma, M. Ishii, M. Ozaki, M. Connors, I. Schofield, P. T. Jayachandran, I. Poddelsky, B. Shevtsov, and D. Baishev
  • Organizer: Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 2014-09-15
  • Int'l Joint Research / Invited
• [Presentation] Statistical analysis of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada (2014)
  • Author(s): Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield and M. Connors
  • Organizer: Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 2014-09-15
  • Int'l Joint Research
• [Presentation] ERG satellite project: Exploration of the terrestrial inner magnetosphere (2014)
  • Author(s): Asamura, K., T. Takashima, Y. Miyoshi, K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, I. Shinohara, M. Hirahara, N. Higashio, H. Matsumoto, S. Kasahara, T. Mitani, Y. Kazama, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, T. Ono, and ERG project group
  • Organizer: Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 2014-09-15
  • Int'l Joint Research
• [Presentation] Ground Network Observations for the ERG Project (2014)
  • Author(s): Shiokawa, K., et al.
  • Organizer: Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 2014-09-15
  • Int'l Joint Research
• [Presentation] Statistical study of Pc1 pearl structures observed at multi-point ground-based stations in Canada, Russia and Japan (2014)
  • Author(s): Jun, C.-W., K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: AGU Chapman Conference on Low-Frequency Waves in Space Plasmas
  • Place of Presentation: Jeju island, Korea
  • Year and Date: 2014-08-31
  • Int'l Joint Research
• [Presentation] Ground-Based Observations of Hiss-Like Emissions Changed from Chorus Emissions and Related Pulsating Aurora (2014)
  • Author(s): Ozaki, M., K. Sawai, S. Yagitani, K. Shiokawa, Y. Miyoshi, R. Kataoka, A. Ieda, Y. Ebihara, and Y. Katoh
  • Organizer: XXXIst URSI General Assembly
  • Place of Presentation: Beijing, China
  • Year and Date: 2014-08-16
  • Int'l Joint Research
• [Presentation] ERG Project (2014)
  • Author(s): Miyoshi Yoshizumi, Takeshi Takashima, Kazushi Asamura, Masafumi Hirahara, Yasumasa Kasaba, Ayako Matsuoka, Hirotsugu Kojima, Kazuo Shiokawa, Kanako Seki, Masaki Fujimoto, and Takayuki Ono
  • Organizer: 40th COSPAR Scientific Assembly
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2014-08-02
  • Int'l Joint Research
• [Presentation] First detection of daytime tweek atmospherics (2014)
  • Author(s): Ohya, H., K. Shiokawa, and Y. Miyoshi
  • Organizer: 40th COSPAR Scientific Assembly
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2014-08-02
  • Int'l Joint Research
• [Presentation] ERG project: Importance of coordinated observations from satellite and ground (2014)
  • Author(s): Miyoshi, Y., T. Takashima, K. Asamura, K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, I. Shinohara, M. Hirahara, N. Higashio, H.Matsumoto, S. Kasahara, T. Mitani, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, T. Ono and ERG project group
  • Organizer: AOGS 11th Annual Meeting
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28
  • Int'l Joint Research / Invited
• [Presentation] Response of the D-region ionosphere over South-East Asia during the maximum of Solar Cycle 24 using AVON (Asia VLF Observation Network) data (2014)
  • Author(s): Ohya, H., Fuminori Tsuchiya, Kozo Yamashita, Yukihiro Takahashi, Kazuo Shiokawa, and Yoshizumi Miyoshi
  • Organizer: AOGS 11th Annual Meeting
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28
  • Int'l Joint Research
• [Presentation] UT dependence of the geomagnetic storms (2014)
  • Author(s): Balan, N., S. TulasiRam, P. K. Rajesh and K. Shiokawa
  • Organizer: AOGS 11th Annual Meeting
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28
  • Int'l Joint Research
• [Presentation] ERG project: Exploration of the terrestrial inner magnetosphere (2014)
  • Author(s): Asamura, K., T. Takashima, Y. Miyoshi, K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, I. Shinohara, M. Hirahara, N. Higashio, H.Matsumoto, S. Kasahara, T. Mitani, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, T. Ono, and ERG project group
  • Organizer: AOGS 11th Annual Meeting
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28
  • Int'l Joint Research
• [Presentation] 母子里および鹿児島で観測された昼間トウィーク空電の初検出 (2014)
  • Author(s): 大矢浩代、塩川和夫、三好由純
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] Polarization and occurrence statistics of VLF/ELF chorus waves at sub-auroral latitudes at Athabasca, Canada (2014)
  • Author(s): Martinez, C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] Study of Pc1 pearl structures observed at multi-point ground stations at Russia, Japan and Canada (2014)
  • Author(s): Jun, C.-W., K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B. Shevtsov
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] What determines the severity of space weather? (2014)
  • Author(s): Balan, N., R. Skoug, S. Tulasi Ram, P. K. Rajesh, K. Shiokawa, R. Hsu, T. H. Su, J. Y. Liu
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] A longitudinal network of VLF/ELF antennas and induction magnetometers at subauroral latitudes - Contribution to VarSITI (2014)
  • Author(s): Shiokawa, K., Y. Miyoshi, M. Ozaki, T. Nagatsuma, M. Ishii, M. Connors, I. Poddelsky, and B. Shevtsov
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] カナダ・アサバスカで同時に観測されたVLF波動とパルセィティングオーロラの高時間分解能相関解析 (2014)
  • Author(s): 砂川尚貴、塩川和夫、三好由純、片岡龍峰、尾崎光紀、澤井薫、Ian Schofield, and Martin Connors
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] ERG project: Importance of coordinated observations from satellite and ground (2014)
  • Author(s): Miyoshi, Y., T. Takashima, K. Asamura, K. Shiokawa, K. Seki, T. Hori, Y. Miyashita, K. Keika, M. Shoji, I. Shinohara, M. Hirahara, N. Higashio, H.Matsumoto, S. Kasahara, T. Mitani, Y. Kasaba, A. Matsuoka, H. Kojima, M. Fujimoto, T. Ono and ERG project group
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] Variations in the D-region ionosphere associated with lightning EMP using AVON and VLF/LF data in Japan (2014)
  • Author(s): Ohya, H., Tsuchiya, F., Yamashita, K., Takahashi, Y., Shiokawa, K., Miyoshi, Y.
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2014-04-28
• [Presentation] Polarization analysis of vlf/elf chorus waves observed during the vlf-chain campaign at sub-auroral latitudes (2014)
  • Author(s): Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors
  • Organizer: 6th VERSIM workshop 2014
  • Place of Presentation: Dunedin
• [Presentation] Ground-based VLF wave observations at subauroral latitudes - VLF-CHAIN Campaign (2013)
  • Author(s): Shiokawa, K., Yu Yokoyama, Akimasa Ieda, Yoshizumi Miyoshi, Reiko Nomura, Sungeun Lee, Mitsunori Ozaki, Kazumasa Ishizaka, Naoki Sunagawa, Satoshi Yagitani, Ryuho Kataoka, Fuminori Tsuchiya, Ian Schofield, and Martin Connors
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ国際会議場
• [Presentation] あけぼの衛星の観測データを用いた内部磁気圏EMIC波動の統計解析 (2013)
  • Author(s): Yuichi Kato, Yoshizumi Miyoshi, Kaori Sakaguchi, Yoshiya Kasahara, Naritoshi Kitamura, Kunihiro Keika, and Kazuo Shiokawa
  • Organizer: 第134回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 高知大学
• [Presentation] Polarization analysis of VLF/ELF chorus waves observed at Athabasca at subauroral latitudes (2013)
  • Author(s): Claudia Martinez C., Kazuo Shiokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Ian Schofield and Martin Connors
  • Organizer: 第134回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 高知大学
• [Presentation] データ同化による放射線帯内部加速機構の推定 (2013)
  • Author(s): 外山晴途、三好由純、上野玄太、越石英樹、松本晴久、塩川和夫
  • Organizer: 第134回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 高知大学
• [Presentation] Coherence analysis of Pc1 geomagnetic pulsations observed at multipoint ground stations at Russia, Japan and Canada (2013)
  • Author(s): C.-W Jun, K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: 第134回地球電磁気・地球惑星圏学会講演会
  • Place of Presentation: 高知大学
• [Presentation] Improvement of the radiation belt model using the data assimilation (2013)
  • Author(s): Toyama, H., Y. Miyoshi, K. Shiokawa, G. Ueno, H. Koshiishi, H. Matsumoto
  • Organizer: International Symposium on Space Technology and Science
  • Place of Presentation: 名古屋国際会議場
• [Presentation] Ground-based network observations of aurora, airglow, magnetic pulsations, and VLF waves at subauroral latitudes (2013)
  • Author(s): Shiokawa, K., Y. Otsuka, Y. Miyoshi, M. Ozaki, and M. Connors
  • Organizer: 10th Annual Meeting of AOGS
  • Place of Presentation: Brisbane
  • Invited
• [Presentation] Comparison between riging frequency of EMIC waves and energy dispersion of energetic ions simultaneously observed at magnetic conjugate points (2013)
  • Author(s): Ishizaka, K., M. Ozaki, S. Yagitani, K. Shiokawa, Y. Miyoshi, R. Kataoka, A. Ieda, Y. Ebihara, A. Kadokura, H. Yamagishi, I. Nagano, T. Nishiyama, M. Hirahara, K. Asamura
  • Organizer: AP-RASC 2013
  • Place of Presentation: Taipei
• [Presentation] Study of Pc1 geomagnetic pulsations observed at multipoint ground stations at Russia, Japan and Canada (2013)
  • Author(s): Jun, C.-W., K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: International CAWSES-II Symposium
  • Place of Presentation: 名古屋大学
• [Presentation] Study of VLF/ELF chorus waves observed by two loop antennas at Athabasca and Fort Vermillion at subauroral latitudes (2013)
  • Author(s): Claudia Martinez C., Kazuo Shiokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Ian Schofield and Martin Connors
  • Organizer: International CAWSES-II Symposium
  • Place of Presentation: 名古屋大学
• [Presentation] Statistical analysis of EMIC waves observed by the Akebono satellite in the inner magnetosphere (2013)
  • Author(s): Yuichi Kato, Yoshizumi Miyoshi, Kaori Sakaguchi, Yoshiya Kasahara, Naritoshi Kitamura, and Kunihiro Keika, Kazuo Shiokawa
  • Organizer: International CAWSES-II Symposium
  • Place of Presentation: 名古屋大学
• [Presentation] Investigation on the internal acceleration process of the outer radiation belt using particle filter (2013)
  • Author(s): Haruto Toyama, Yoshizumi Miyoshi, Kazuo Shiokawa, Genta Ueno, Hideki Koshiishi, Haruhisa Matsumoto
  • Organizer: AGU Fall meeting
  • Place of Presentation: San Fransisco
• [Presentation] Polarization analysis of VLF/ELF chorus waves observed at two ground stations at subauroral latitudes (2013)
  • Author(s): Claudia Martinez C., Kazuo Shiokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Ian Schofield and Martin Connors
  • Organizer: AGU Fall meeting
  • Place of Presentation: San Fransisco
• [Presentation] Pearl structures of Pc1 geomagnetic pulsations observed at multipoint ground stations at Russia, Japan and Canada (2013)
  • Author(s): C.-W Jun, K. Shiokawa, I. Schofield, M. Connors, I. Poddelsky, and B.Shevtsov
  • Organizer: AGU Fall meeting
  • Place of Presentation: San Fransisco
• [Remarks] Optical Mesosphere Thermosphere Imagers
  • URL: http://stdb2.isee.nagoya-u.ac.jp/omti/index.html
• [Remarks] ISEE magnetometer network
  • URL: http://stdb2.isee.nagoya-u.ac.jp/magne/index.html
• [Remarks] ISEE VLF/ELF network
  • URL: http://stdb2.isee.nagoya-u.ac.jp/vlf/index.html
• [Remarks] Optical Mesosphere Thermosphere Imagers
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/omti/
• [Remarks] ISEE Magnetometer Data
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/magne/
• [Remarks] ISEE VLF/ELF Network
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vlf/
• [Remarks] ISEE Magnetometer Data
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/magne/index.html
• [Remarks] ISEE VLF/ELF Network
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vlf/index.html
• [Remarks] Optical Mesosphere Thermosphere Imagers
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/omti/
• [Remarks] STEL Magnetometers
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/magne/
• [Remarks] STEL VLF/ELF Data
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vlf/
• [Funded Workshop] International Conference on Substorms -12 (2014)
  • Place of Presentation: 伊勢志摩ロイヤルホテル
  • Year and Date: 2014-11-10