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

2014 Fiscal Year Annual Research Report

• Project/Area Number: 25247080
• 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, 宇宙地球環境研究所, 准教授 (10377781) ; 大塚 雄一 名古屋大学, 宇宙地球環境研究所, 准教授 (40314025)
• Project Period (FY): 2013-04-01 – 2018-03-31
• 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）

Outline of Annual Research Achievements

・観測点候補地であるロシアのZhigansk観測点を管理するヤクーツクのIKFIA研究所に、誘導磁力計一式を送付し、ヤクーツクでの組み上げとテスト観測を開始した。また、同観測点に発送する高感度全天カメラとVLF波動受信機の輸入・設置許可を得るために、IKFIA研究所を通じてロシア政府への申請を行った。
・観測点候補地であるカナダ東海岸のFrederictonのニューブランズウィック大学の研究協力者に誘導磁力計とVLFアンテナを送付し、平成26年度に設置する予定であった。しかしニューブランズウィック大学側の観測所の建物の改修の都合により、この設置は平成27年度に延期せざるを得なかった。このため、本経費の一部を平成27年度に繰り越した。さらに平成27年度にニューブランズウィック大学からさらなる設置の延期を求められたため、平成27年秋に、現地に送付した機器を一旦、名古屋大学に送り返して機器のメンテナンスを行った。
・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。

Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

当初の予定では、カナダとロシアの異なる経度のサブオーロラ帯の2カ所に機器を設置する予定で、機器の購入と組み上げをすすめた。ロシアは誘導磁力計を現地に送り、他の機器も送る準備を進めており、時間はかかっているが順調に進んでいる。一方カナダは、ニューブランズウィック大学側に対応の問題があり、設置について日本側としては再考の必要がある。

Strategy for Future Research Activity

平成28年度に、誘導磁力計をロシアのジガンスクに設置し、テスト観測を開始する。さらにループアンテナと高感度全天カメラのロシアへの送付を進める。設置が難しくなっているカナダについては、カナダだけでなく、フィンランドや昭和基地などの、既存のアサバスカ観測点とは異なる経度の既存のループアンテナのデータを収集し、当初の目的である異なる経度における波動の発生分布を明らかにしていく。これらの観測を、現在打ち上がっているRBSP衛星やTHEMIS衛星、平成28年度に打ち上げられるERG衛星による磁気圏の直接観測と比較していく。

Research Products

• [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)
  • Country Name: RUSSIA FEDERATION
  • Counterpart Institution: 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
• [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)
  • Country Name: CANADA
  • Counterpart Institution: アサバスカ大学/ニューブランズウィック大学
• [Int'l Joint Research] ソダンキュラ観測所(フィンランド)
  • Country Name: FINLAND
  • Counterpart Institution: ソダンキュラ観測所
• [Int'l Joint Research] アイオワ大学(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: アイオワ大学
• [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(1) Pages: -
  • DOI: 10.1186/s40623-014-0178-7
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Daytime tweek atmospherics (2015)
  • Author(s): Ohya, H., K. Shiokawa, and Y. Miyoshi
  • Journal Title: J. Geophys. Res. Volume: 120 Pages: -
  • 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 Pages: -
  • 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(140) Pages: -
  • DOI: 10.1186/s40623-014-0140-8
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [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 Pages: -
  • DOI: 10.1029/2014JA020151
  • 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 Pages: -
  • DOI: 10.1029/2014JA020161
  • 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 Pages: -
  • DOI: 10.1029/2014JA020050
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [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 – 2015-03-27
  • 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 – 2015-03-27
  • 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 – 2015-03-05
  • 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 – 2015-03-05
  • 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 – 2015-01-07
• [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 – 2014-12-19
  • 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 – 2014-12-19
  • 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 – 2014-12-19
  • 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 – 2014-11-14
  • 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 – 2014-11-14
  • 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 – 2014-11-14
  • 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 – 2014-11-14
  • 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 – 2014-11-03
• [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 – 2014-11-03
• [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 – 2014-11-03
• [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 – 2014-11-03
• [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 – 2014-10-18
  • 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 – 2014-10-18
  • 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 – 2014-10-18
  • 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 – 2014-10-18
  • 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 – 2014-09-20
  • 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 – 2014-09-20
  • 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 – 2014-09-20
  • 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 – 2014-09-20
  • 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 – 2014-09-05
  • 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 – 2014-08-23
  • 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 – 2014-08-08
  • 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 – 2014-08-08
  • 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 – 2014-08-01
  • 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 – 2014-08-01
  • 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 – 2014-08-01
  • 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 – 2014-08-01
  • 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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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 – 2014-05-02
• [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/index.html
• [Remarks] ISEE VLF/ELF Network
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vlf/index.html
• [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 – 2014-11-14