Study of dynamical variation of particles and waves in the inner magnetosphere using ground-based network observations (PWING Project)

2019 Fiscal Year Annual Research Report

• Project/Area Number: 16H06286
• 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• Co-Investigator(Kenkyū-buntansha): 西谷 望 名古屋大学, 宇宙地球環境研究所, 准教授 (10218159) ; 三好 由純 名古屋大学, 宇宙地球環境研究所, 教授 (10377781) [Withdrawn] ; 関 華奈子 東京大学, 大学院理学系研究科(理学部), 教授 (20345854) ; 大山 伸一郎 名古屋大学, 宇宙地球環境研究所, 講師 (20444424) ; 大塚 雄一 名古屋大学, 宇宙地球環境研究所, 准教授 (40314025) ; 田中 良昌 国立極地研究所, 研究教育系, 特任准教授 (50425766) ; 尾崎 光紀 金沢大学, 電子情報通信学系, 准教授 (70422649) ; 能勢 正仁 名古屋大学, 宇宙地球環境研究所, 准教授 (90333559) ; 片岡 龍峰 国立極地研究所, 研究教育系, 准教授 (90462671)
• Project Period (FY): 2016-04-26 – 2021-03-31
• Keywords: PWING / 磁気圏・電離圏 / 超高層物理学 / 宇宙科学 / 超高層大気環境 / 宇宙空間 / 国際共同研究 / オーロラ

Outline of Annual Research Achievements

・本事業で各観測点に設置されたVLFアンテナ、誘導磁力計、高感度全天カメラ、リオメータ、EMCCDカメラや、平成28年12月に打ち上げられたあらせ衛星、本事業で開発されているモデリングなどを通じ、令和元年度には38件の査読付き論文を国際学術誌に出版した。代表的な成果は以下が挙げられる。
・ロシアのZhigansk観測点や米国のRBSP衛星における観測、モデル計算を組み合わせて、電磁イオンサイクロトロン波動（EMIC波動）が数百keVという従来考えられているよりも低いエネルギー範囲の放射線帯電子の消失に貢献していることを明らかにした。また、アラスカのGakona観測点のEMCCDカメラで高速撮像された脈動オーロラと、あらせ衛星で観測された磁気圏ELF/VLF波動（コーラス波動）の明滅の１対１対応を見出し、秒以下の時間スケールのオーロラの脈動が、コーラス波動の微細構造によって作られていることを世界で初めて明らかにした。さらにフィンランドのKannuslehto観測点とあらせ衛星で同時観測された磁気圏ELF/VLF波動を詳細に解析し、磁気圏赤道面における地球磁場の曲率が、ここで生成される波動の特性を大きく左右していることを明らかにした。これらの電磁波動の衛星ー地上観測の成果は、人類の宇宙利用の脅威となる放射線帯粒子の生成・消失の機構の解明につながる重要な成果である。
・ノルウェーのトロムソ観測点で得られた熱圏風のデータ解析から、オーロラサブストーム開始前後の熱圏風の変動や地磁気静穏時の熱圏風の動態を明らかにした。また、北欧と南極昭和基地の大型レーダーとあらせ衛星の同時観測により、高エネルギー粒子の降込みに伴う中間圏レーダーエコーの発生を見出した。これらの観測は、宇宙空間からの高エネルギープラズマ粒子の流入に対する地球大気の応答を明らかにする上で重要な成果である。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

・フィンランド、アイスランド、カナダ、ロシア、アラスカ、日本などの既存の観測点の自動定常観測を維持・継続している。残っているカナダのNain観測点もすべての装置及び記録計の設置を終了し、キャンペーンベースで稼働させることができており、得られたデータの解析も進められている。
・引き続き、これらの観測で得られるデータをERGサイエンスセンターとIUGONETによるデータベースを利用してデータベース化して公開し、国内・海外との共同研究を促進することができている。
・定常観測を継続している日本のERG（あらせ）衛星の軌道に合わせて、令和元年度の秋にもキャンペーン観測を行った。また、米国のVan Allen Probe衛星・THEMIS衛星などの内部磁気圏衛星との同時観測データの解析を進めることもできている。
・波動と粒子の相互作用を局所的およびグローバルに評価するモデリングの開発を継続し、これらの観測と比較することで、モデルの改良と粒子加速・消失の定量評価を行いつつある。
・これらの地上・衛星観測、モデリングから、数多くの研究成果が得られている。

Strategy for Future Research Activity

・カナダのNain観測点は、電源が得られない場合は発電機を活用してあらせ上空通過時などに観測を行ってデータを取得していく。
・本研究では8か所の観測点・5種類の機器から大量のデータを得ている。これらの観測データはすべて大容量ストレージに保管され、世界的に広く使われているCDFフォーマットに変換されて、ネットワークを介して世界の研究者に公開されている。昨年度に引き続き、新しく得られてくるデータも世界の研究者に公開し、データ利用の促進と成果の創出をはかっていく。
・本事業ではホームページ（http://www.isee.nagoya-u.ac.jp/dimr/PWING/）を立ち上げてデータの説明や進捗状況、データへのリンク先などを公開している。このホームページを引き続き運用し、情報発信をはかっていく。さらに、関連研究の国際ワークショップや国際シンポジウムを開催して、成果の創出をはかっていく。
・本研究の成果は、科学論文として発表していくだけでなく、さまざまな形で社会へ発信していくことが重要である。このために、出前授業や、大学院生・若手研究者向けの国際スクール、重要な成果のプレスリリースなどを実施していく。

Research Products

• [Int'l Joint Research] アラスカ大学フェアバンクス校 地球物理学研究所/バージニア工科大学/アウグスブルグ大学(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: アラスカ大学フェアバンクス校 地球物理学研究所/バージニア工科大学/アウグスブルグ大学
  • # of Other Institutions: 7
• [Int'l Joint Research] ロシア科学アカデミーシベリア支部宇宙物理学・超高層大気物理学研究所(IKFIA)/ロシア科学アカデミーシベリア 支部・太陽地球系物理学研究所 （ISTP)/ロシア科学アカデミー極東支 部・宇宙物理学及び電波伝搬研 究所（IKIR）(ロシア連邦)
  • Country Name: RUSSIA FEDERATION
  • Counterpart Institution: ロシア科学アカデミーシベリア支部宇宙物理学・超高層大気物理学研究所(IKFIA)/ロシア科学アカデミーシベリア 支部・太陽地球系物理学研究所 （ISTP)/ロシア科学アカデミー極東支 部・宇宙物理学及び電波伝搬研 究所（IKIR）
  • # of Other Institutions: 1
• [Int'l Joint Research] ソダンキュラ観測所/フィンランド気象研究所/ニロラ観測所(フィンランド)
  • Country Name: FINLAND
  • Counterpart Institution: ソダンキュラ観測所/フィンランド気象研究所/ニロラ観測所
• [Int'l Joint Research] アサバスカ大学(カナダ)
  • Country Name: CANADA
  • Counterpart Institution: アサバスカ大学
• [Int'l Joint Research] アイスランド大学(アイスランド)
  • Country Name: ICELAND
  • Counterpart Institution: アイスランド大学
• [Int'l Joint Research]
  • # of Other Countries: 3
• [Journal Article] Modulation of Pc1 wave ducting by equatorial plasma bubble (2020)
  • Author(s): Kim, H., K. Shiokawa, J. Park, Y. Miyoshi, J. Hwang, and A. Kadokura
  • Journal Title: Geophys. Res. Lett. Volume: 47 Pages: -
  • DOI: 10.1029/2020GL088054
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multiple time-scale beats in aurora: precise orchestration via magnetospheric chorus waves (2020)
  • Author(s): Hosokawa, K., Y. Miyoshi, M. Ozaki, S.-I. Oyama, Y. Ogawa, S. Kurita, Y. Kasahara, Y. Kasaba, S. Yagitani, S. Matsuda, F. Tsuchiya, A. Kumamoto, R. Kataoka, K. Shiokawa, T. Raita, E. Turunen, T. Takashima, I. Shinohara & R. Fujii
  • Journal Title: Nature Sci Rep Volume: 10 Pages: -
  • DOI: 10.1038/s41598-020-59642-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ULF modulation of energetic electron precipitation observed by VLF/LF radio propagation (2020)
  • Author(s): Miyashita T., H. Ohya, F. Tsuchiya, A. Hirai, M. Ozaki, K. Shiokawa, Y. Miyoshi, N. Nishitani, M. Teramoto, M. Connors, S. G. Shepherd, Y. Kasahara, A. Kumamoto, M. Shoji, I. Shinohara, H. Nakata, and T. Takano
  • Journal Title: URSI Radio Science Bulletin Volume: - Pages: -
  • DOI: 10.23919/URSIRSB.2020.9240099
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] On the transition between the inner and outer plasma sheet in the Earth's magnetotail (2020)
  • Author(s): Miyashita, Y., K. Seki, K. Sakaguchi, Y. Hiraki, M. Nose, S. Machida, Y. Saito, and W. Paterson
  • Journal Title: J. Geophys. Res. Volume: 125 Pages: -
  • DOI: 10.1029/2019JA027561
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fine-scale visualization of aurora in a wide area using color digital camera images from the International Space Station (2020)
  • Author(s): Nanjo S., Y. Hozumi, K. Hosokawa, R. Kataoka, Y. Miyoshi, S. Oyama, M. Ozaki, K. Shiokawa, and S. Kurita
  • Journal Title: J. Geophys. Res. Volume: 125 Pages: -
  • DOI: 10.1029/2019JA027729
  • Peer Reviewed / Open Access
• [Journal Article] Diffuse and Pulsating Aurora (2020)
  • Author(s): Nishimura, Y., Lessard, M.R., Katoh, Y., Yoshizumi Miyoshi, Eric Grono, N. Partamies, N. Sivadas, K. Hosokawa, M. Fukizawa, M. Samara, R. G. Michell, R. Kataoka, T. Sakanoi, D. K. Whiter, S. Oyama, Y. Ogawa, S. Kurita
  • Journal Title: Space Sci Rev Volume: 216 Pages: -
  • DOI: 10.1007/s11214-019-0629-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of low-cost multi-wavelength imager system for studies of aurora and airglow (2020)
  • Author(s): Ogawa, Y., Y. Tanaka, A. Kadokura, K. Hosokawa, Y. Ebihara, T. Motoba, B. Gustavsson, U. Brandstrom, Y. Sato, S. Oyama, M. Ozaki, T. Raita, F. Sigernes, S. Nozawa, K. Shiokawa, M. Kosch, K. Kauristi, C. Hall, S. Suzuki, Y. Miyoshi, A. Gerrard, H. Miyaoka, R. Fujii
  • Journal Title: Polar Science Volume: 23 Pages: -
  • DOI: 10.1016/j.polar.2019.100501
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Selective acceleration of O+ by drift-bounce resonance in the Earth's magnetosphere: MMS observations (2020)
  • Author(s): Oimatsu, S., M. Nose, G. Le, S. A. Fuselier, R. E. Ergun, P.-A. Lindqvist, and D. Sormakov
  • Journal Title: J. Geophys. Res. Volume: 125 Pages: -
  • DOI: 10.1029/2019JA027686
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Wavenumber spectra of atmospheric gravity waves and medium-scale traveling ionospheric disturbances based on more than 10-year airglow images in Japan, Russia, and Canada (2020)
  • Author(s): Tsuchiya S., K. Shiokawa, Y. Otsuka, T. Nakamura, M. Yamamoto, M. Connors, I. Schofield, B. Schevtsov, and I. Poddelskiy
  • Journal Title: J. Geophys. Res. Volume: 125 Pages: -
  • DOI: 10.1029/2019JA026807
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multi-event analysis of oscillatory motion of medium-scale traveling ionospheric disturbances observed by a 630-nm airglow imager over Tromsoe (2020)
  • Author(s): Yadav S., K. Shiokawa, S. Oyama, and Y. Otsuka
  • Journal Title: J. Geophys. Res. Volume: 125 Pages: -
  • DOI: 10.1029/2019JA027598
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] IpsDst of Dst storms applied to ionosphere-thermosphere storms and low latitude aurora (2019)
  • Author(s): Balan N., Qing-He Zhang, K. Shiokawa, R. Skoug, Zanyang Xing, S. Tulasi Ram and Y. Otsuka
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA027080
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather (2019)
  • Author(s): Balan, N., Qing-He Zhang, Zanyang Xing, R. Skoug, K. Shiokawa, H. Luhr, S. Tulasi Ram, Y. Otsuka, and Lingxin Zhao
  • Journal Title: Astrophysical Journal Volume: 887:51:00 Pages: -
  • DOI: 10.3847/1538-4357/ab5113
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Potential for the measurement of MLT wind, temperature, density and geomagnetic field with Superconducting Submillimeter-Wave Limb-Emission Sounder-2 (SMILES-2) (2019)
  • Author(s): Baron, P., Ochiai, S., Dupuy, E., Larsson, R., Liu, H., Manago, N., Murtagh, D., Oyama, S., Sagawa, H., Saito, A., Sakazaki, T., Shiotani, M., and Suzuki, M
  • Journal Title: Atmos. Meas. Tech. Discuss. Volume: - Pages: -
  • DOI: 10.5194/amt-2019-217
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fabry-Perot interferometer observations of thermospheric horizontal winds during magnetospheric substorms (2019)
  • Author(s): Cai, L., Oyama, S.-I., Aikio, A., Vanhamaki, H., & Virtanen, I.
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: 3709-3728
  • DOI: 10.1029/2018JA026241
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ERG observations of drift echoes during a unique period of the satellite mission (2019)
  • Author(s): Chang, T.-Z., C-Z. Cheng, S. W-Y Tam, C-Y Chiang, Y. Miyoshi, T. Hori, T. Mitahi, T. Takashima, A. Matsuoka, M. Teramoto, and I. Shinohara
  • Journal Title: Earth, Planets and Space, Volume: 71 Pages: -
  • DOI: 10.1186/s40623-019-0999-5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mesoscale Convection Structures Associated with Airglow Patches Characterized using Cluster-Imager Conjunctions (2019)
  • Author(s): Goodwin, L. V., Y. Nishimura, Y. Zou, K. Shiokawa, and P. T. Jayachandran.
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026611
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Locally generated ULF waves in the Martian magnetosphere: MAVEN observations (2019)
  • Author(s): Harada, Y, S. Ruhunusiri, J. S. Halekas, J. Espley, G. A. DiBraccio, J. P. McFadden, D. L. Mitchell, C. Mazelle, G. Collinson, D. A. Brain, T. Hara, M. Nose, S. Oimatsu, K. Yamamoto, and B. M. Jakosky
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA027312
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multi-instrument observation of nonlinear EMIC-driven electron precipitation at sub-MeV energies (2019)
  • Author(s): Hendry, A. T., O. Santolik, C. A. Kletzing, C. J. Rodger, K. Shiokawa, and D. Baishev
  • Journal Title: Geophys. Res. Lett. Volume: 46 Pages: -
  • DOI: 10.1029/2019GL082401
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Meridional distribution of middle-energy protons and pressure-driven currents in the nightside inner magnetosphere: Arase observations (2019)
  • Author(s): Imajo, S., M. Nose, S. Kasahara, S. Yokota, A. Matsuoka, K. Keika, T. Hori, M. Teramoto, K. Yamamoto, S. Oimatsu, R. Nomura, A. Fujimoto, I. Shinohara, and Y. Miyoshi
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: 5719-5733
  • DOI: 10.1029/2019JA026682
  • Peer Reviewed
• [Journal Article] Tracking the region of high correlation between pulsating aurora and chorus : simultaneous observations with Arase satellite and ground-based all-sky imager in Russia (2019)
  • Author(s): Kawamura, S., K. Hosokawa, S. Kurita, S. Oyama, Y. Miyoshi, Y. Kasahara, M. Ozaki, S. Matsuda, A. Matsuoka, B. Kozelov, Y. Kawamura, and I. Shinohara
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026496
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ground Echoes Observed by the Meteor Radar and High-Speed Auroral Observations in the Substorm Growth Phase (2019)
  • Author(s): Kozlovsky, A., S. Shalimov, S. Oyama, K. Hosokawa, M. Lester, Y. Ogawa and C. Hall
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026829
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Conjugate observations of dayside and nightside VLF chorus and QP emissions between Arase (ERG) and Kannuslehto, Finland (2019)
  • Author(s): Martinez-Calderon, C., Y. Katoh, J. Manninen, Y. Kasahara, S. Matsuda, A. Kumamoto, F. Tsuchiya, A. Matsuoka, M. Shoji, M. Teramoto, I. Shinohara, K. Shiokawa and Y. Miyoshi
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026663
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] EMIC waves converted from equatorial noise due 1 to M/Q=2 ions in the plasmasphere : Observations from Van Allen Probes and Arase (2019)
  • Author(s): Miyoshi Y., S. Matsuda, S. Kurita, K. Nomura, K. Keika, M. Shoji, N. Kitamura, Y. Kasahara, A. Matsuoka, I. Shinohara, K. Shiokawa, S. Machida, O. Santolik, S. A. Boardsen, R. B. Horne , and J. F. Wygant
  • Journal Title: Geophys. Res. Lett. Volume: 46 Pages: -
  • DOI: 10.1029/2019GL083024
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Response of the ionosphere-plasmasphere coupling to the September 2017 storm: What erodes the plasmasphere so severely? (2019)
  • Author(s): Obana, Y., N. Maruyama, A. Shinbori, K. K. Hashimoto, M. Fedrizzi, M. Nose, Y. Otsuka, N. Nishitani, T. Hori, A. Kumamoto, F. Tsuchiya, S. Matsuda, A. Matsuoka, Y. Kasahara, A. Yoshikawa, Y. Miyoshi, and I. Shinohara
  • Journal Title: Space Weather Volume: 17 Pages: -
  • DOI: 10.1029/2019SW002168
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] DC component of spacecraft-origin magnetic field noise at the Arase/MGF sensor: (2) Evaluation with Tsyganenko-Sitnov 04 model (2019)
  • Author(s): Oimatsu, S., K. Yamamoto, M. Nose, A. Matsuoka, M. Teramoto, and S. Imajo
  • Journal Title: JAXA Research and Development Report, JAXA-RR-18-005E Volume: 18 Pages: 29-34
  • DOI: 10.20637/JAXA-RR-18-005E/0005
  • Peer Reviewed / Open Access
• [Journal Article] A Neural Network based Ionospheric Model over Africa from COSMIC and Ground GPS Observations (2019)
  • Author(s): Okoh, D., G. Seemala, B. Rabiu, J. B. Habarulema, S. Jin, K. Shiokawa, Y. Otsuka, M. Aggarwal, J. Uwamahoro, P. Mungufeni, B. Segun, R. Obafaye, N. Ellahony, C. Okonkwo, M. Tshisaphungo, D. Shetti
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA027065
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Statistical study of auroral/resonant-scattering 427.8-nm emission observed at subauroral latitudes over 14 years (2019)
  • Author(s): Shiokawa, K., Y. Otsuka, and M. Connors
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026704
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Longitudinal extent of magnetospheric ELF/VLF waves using multipoint PWING ground stations at subauroral latitudes (2019)
  • Author(s): Takeshita Y., K. Shiokawa, M. Ozaki, J. Manninen, S. Oyama, M. Connors, D. Baishev, V. Kurkin, and A. Oinats
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026810
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Direct comparison between magnetospheric plasma waves and polar mesosphere winter echoes in both hemispheres (2019)
  • Author(s): Tanaka, Y.-M., T. Nishiyama, A. Kadokura, M. Ozaki, Y. Miyoshi, K. Shiokawa, S.. Oyama, R. Kataoka, M. Tsutsumi, K. Nishimura, K. Sato et al.
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026891
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Remote detection of drift resonance between energetic electrons and ULF waves: Multi-satellite coordinated observation by Arase and Van Allen Probes (2019)
  • Author(s): Teramoto, M., T. Hori, S. Saito, Y. Miyoshi, S. Kurita, N. Higashio, A. Matsuoka et al.
  • Journal Title: Geophys. Res. Lett. Volume: 46 Pages: -
  • DOI: 10.1029/2019GL084379
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Three-dimensional Fourier analysis of the phase velocity distributions of mesospheric and ionospheric waves based on airglow images collected over 10 years: Comparison of Magadan, Russia, and Athabasca, Canada (2019)
  • Author(s): Tsuchiya, S., K. Shiokawa. H. Fujinami, Y. Otsuka, T. Nakamura, M. Connors, I. Schofield, B. Shevtsov, and I. Poddelsky
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA026783
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Three different episodes of prompt equatorial electric field perturbations under steady southward IMF Bz during St. Patrick’s day storm (2019)
  • Author(s): Tulasi Ram, S., B. Nilam, N. Balan, Q. Zhang, K. Shiokawa, D. Chakrabarty, Z. Xing, K. Venkatesh, B. Veenadhari and A. Yoshikawa
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA027069
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-latitude thermospheric wind study using a Fabry-Perot interferometer at Tromsoe in Norway: averages and variations during quiet times (2019)
  • Author(s): Xu H., K. Shiokawa, S. Oyama, and S. Nozawa
  • Journal Title: Earth Planets Space Volume: 71:110 Pages: -
  • DOI: 10.1186/s40623-019-1093-8
  • Peer Reviewed / Open Access
• [Journal Article] Thermospheric wind variations observed by a Fabry-Perot interferometer at Tromsoe, Norway, at substorm onsets (2019)
  • Author(s): Xu, H. K. Shiokawa, S. Oyama, and Y. Otsuka
  • Journal Title: Earth Planets, and Space Volume: 71:93 Pages: -
  • DOI: 10.1186/s40623-019-1072-0
  • Peer Reviewed / Open Access
• [Journal Article] Excitation of storm-time Pc5 ULF waves by ring current ions based on the drift-kinetic simulation (2019)
  • Author(s): Yamakawa, T., K. Seki, T. Amano, N. Takahashi, and Y. Miyoshi
  • Journal Title: Geophys. Res. Lett. Volume: 46 Pages: -
  • DOI: 10.1029/2018GL081573
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Eastward propagating second harmonic poloidal waves triggered by temporary outward gradient of proton phase space density: Van Allen Probe A observation (2019)
  • Author(s): Yamamoto, K., M. Nose, K. Keika, D. P. Hartley, C. W. Smith, R. J. MacDowall, L. J. Lanzerotti, D. G. Mitchell, H. E. Spence, G. D. Reeves, J. R. Wygant, J. W. Bonnell, and S. Oimatsu
  • Journal Title: J. Geophys. Res. Volume: 124 Pages: -
  • DOI: 10.1029/2019JA027158
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] DC component of spacecraft-origin magnetic field noise at the Arase/MGF sensor: (1) Evaluation with Tsyganenko 89 model (2019)
  • Author(s): Yamamoto, K., S. Oimatsu, M. Nose, A. Matsuoka, M. Teramoto, and S. Imajo
  • Journal Title: JAXA Research and Development Report, JAXA-RR-18-005E Volume: 18 Pages: 23-28
  • DOI: 10.20637/JAXA-RR-18-005E/0004
  • Peer Reviewed / Open Access
• [Journal Article] Probing afternoon detached aurora and high-latitude trough based on DMSP observations (2019)
  • Author(s): Zhou, S., K. Shiokawa, I. Poddelsky, and Y. Chen
  • Journal Title: Adv. Space Res. Volume: 65 Pages: 214-220
  • DOI: 10.1016/j.asr.2019.10.003
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Overview of the Arase/ERG project and highlights from the prime mission (2020)
  • Author(s): Y. Miyoshi, I. Shinohara, T. Takashima, K.Asamura, S.-Y. Wang, Y. Kazama, S. Kasahara, S. Yokota, T. Mitani, N. Higashio, Y. Kasahara, Y. Kasaba, S. Yagitani, A. Matsuoka, H. Kojima, Y. Katoh, K. Shiokawa, K. Seki
  • Organizer: 2020 ERG Science and Space Weather Workshop
  • Int'l Joint Research
• [Presentation] Precipitations of energetic electrons due to ULF modulation (2020)
  • Author(s): Hiroyo Ohya, Takuya Miyashita, Fuminori Tsuchiya, Mitsunori Ozaki, Yoshizumi Miyoshi, Kazuo Shiokawa, Nozomu Nishitani, Martin Connors, Simon G. Shepherd
  • Organizer: 2020 ERG Science and Space Weather Workshop
  • Int'l Joint Research
• [Presentation] SAR arc at 68 geomagnetic (71 geographic) North for Kp = 0+ (2020)
  • Author(s): Oyama, S., A. Aikio, H. Vanhamaki, A. Shinbori, M. Rietveld, Y. Ogawa, M. Kellinsalmi, T. Raita, K. Shiokawa, I. Virtanen, L. Cai, A. Workayehu, M. Pedersen, K. Kauristie, B. Kozelov and A. Demekhov
  • Organizer: Apatity Seminar 2020
  • Int'l Joint Research
• [Presentation] Flash aurora as manifestation of single chorus element wave-particle interactions (2020)
  • Author(s): Mitsunori Ozaki; Kazuo Shiokawa; Yoshizumi Miyoshi; Keisuke Hosokawa; Shin-ichiro Oyama; Satoshi Yagitani; Yoshiya Kasahara; Yasumasa Kasaba; Shoya Matsuda; Ryuho Kataoka; Yusuke Ebihara; Yasunobu Ogawa; Yuichi Otsuka; Ayako Matsuoka; Iku Shinora
  • Organizer: Japanese-Czech Space Physics Symposium
  • Int'l Joint Research
• [Presentation] Spatial development of single chorus element wave-electron interaction region deduced from flash aurora and ray tracing (2020)
  • Author(s): M. Ozaki, T. Inoue, Y. Tanaka, Y. Goto, S. Yagitani, Y. Kasahara, K. Shiokawa, Y. Miyoshi, K. Hosokawa, S. Oyama, R. Kataoka, Y. Ebihara, Y. Ogawa, & A. Kadokura
  • Organizer: Japanese-Czech Space Physics Symposium
  • Int'l Joint Research
• [Presentation] Diversity of the auroral-subauroral ionosphere and thermosphere during very low Kp condition (2020)
  • Author(s): Oyama, S., Anita Aikio, Heikki Vanhamaki, Yasunobu Ogawa, Atsuki Shinbori, Mike Rietveld, Mirjam Kellinsalmi, Abiyot Workayehu, Marcus Pedersen
  • Organizer: Observatory Days 2020
  • Int'l Joint Research
• [Presentation] Recent results obtained by Optical mesosphere thermosphere imagers (OMTIs) for understanding ionospheric disturbances at middle and low latitudes (2020)
  • Author(s): Shiokawa, K., and Y. Otsuka
  • Organizer: The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  • Int'l Joint Research
• [Presentation] Activity of Ionospheric Subgroup of PSTEP (2020)
  • Author(s): Otsuka Y., K. Shiokawa, H. Shinagawa, T. Iyemori, A. Yoshikawa
  • Organizer: The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  • Int'l Joint Research
• [Presentation] Spatial and temporal characteristics of EMIC wave-driven energetic electron precipitation from ground-based observations (2020)
  • Author(s): A. Hirai, F. Tsuchiya, T. Obara, Y. Kasaba, Y. Katoh, H. Misawa, K. Shiokawa, Y. Miyoshi, S. Kurita and M. Connors
  • Organizer: The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  • Int'l Joint Research
• [Presentation] PRESTO - Predictability of the variable Solar-Terrestrial Coupling - The new SCOSTEP 5-year program (2020)
  • Author(s): Kazuo Shiokawa
  • Organizer: United Nations Office for Outer Space Affairs, Science and Technical Subcommittee (STSC), Space Weather Agenda
  • Int'l Joint Research
• [Presentation] ERG (あらせ) プロジェクト: ERGサイエンスセンター (ERG-SC) (2020)
  • Author(s): 堀智昭,三好由純,栗田怜,Jun Chae-Woo,小路真史,梅村宜生,瀬川朋紀,近藤誉子,塩川和夫,寺本万里子,桂華邦裕,関華奈子,田中良昌,松田昇也,篠原育,浅村和史
  • Organizer: 宇宙科学シンポジウム
• [Presentation] FACTORS衛星によるオーロラおよび宇宙から地球へのエネルギー流入過程の観測計画検討 (2020)
  • Author(s): 三好由純,浅村和史,坂野井健,平原聖文,渡邊智彦,西山尚典,海老原祐輔,細川敬佑,小川奏信,塩川和夫,八木直志,吹澤瑞貴,Park InChun,FACTORS-領域間結合研究チーム
  • Organizer: 宇宙科学シンポジウム
• [Presentation] 「あらせ」によるジオスペース観測 (2020)
  • Author(s): 三好由純,篠原育,高島健,浅村和史,東尾奈々,三谷烈史,笠原慧,横田勝一郎,風間洋一,Wang Shiang-Yu,笠原禎也,笠羽康正,八木谷聡,松岡彩子,小嶋浩嗣,加藤雄人,塩川和夫,関華奈子
  • Organizer: 宇宙科学シンポジウム
• [Presentation] PRESTO - Predictability of the variable Solar-Terrestrial Coupling - The new SCOSTEP program in 2020-2024 (2020)
  • Author(s): 塩川和夫
  • Organizer: 太陽研連シンポジウム「太陽研究の現状と将来展望」
• [Presentation] Spatial distribution of the polar thermospheric wind acceleration and importance of the 2D measurement with SDIs (2019)
  • Author(s): Shin-ichiro Oyama, Anita Aikio Mark G. Conde, Heikki Vanhamaki, Ilkka Virtanen et al.
  • Organizer: 19th International EISCAT symposium
  • Int'l Joint Research
• [Presentation] SCOSTEP's Scientific Programs VarSITI and PRESTO (2019)
  • Author(s): K. Georgieva and K. Shiokawa
  • Organizer: 6th Gamow International Conference in Odessa: “New Trends in Cosmology, Astrophysics and HEP after Gamow”
  • Int'l Joint Research
• [Presentation] Longitudinal Variation of Pulsating Aurora Periodicities: Digital Camera Observations from International Space Station (2019)
  • Author(s): Sota Nanjo, Yuta Hozumi, Keisuke Hosokawa, Ryuho Kataoka, Yoshizumi Miyoshi, Shin-ichiro Oyama, Mitsunori Ozaki, Kazuo Shiokawa and Satoshi Kurita
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Multi-event analysis of oscillatory motion of medium-scale traveling ionospheric disturbances observed by a 630-nm airglow imager over Tromsoe (2019)
  • Author(s): Sneha Yadav, K. Shiokawa, S. Oyama, and Y. Otsuka
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Spatial distribution of the polar thermospheric wind acceleration and importance of the 2D measurement with SDIs (2019)
  • Author(s): Shin-ichiro Oyama, Anita Aikio, Mark G. Conde, Heikki Vanhamaki, Ilkka Virtanen, Thomas Ulich, Urban Brondstrom, Pekka Verronen, Monika Anderson et al.
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] What controls the luminosity of polar cap airglow patches? : implication from airglow measurement in Eureka, Canada (2019)
  • Author(s): Keisuke Hosokawa, Kazuo Shiokawa, Yuichi Otsuka, Satoshi Taguchi, Michitaro Nagata, and Akiko Kagawa
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Source region of auroral arcs and diffuse auroras in the inner magnetosphere observed by Arase on 11 September 2018 (2019)
  • Author(s): K. Shiokawa, M. Nose, S. Imajo, Y. Tanaka, Y. Miyoshi, K. Hosokawa, M. Connors, M. Engebretson, Y. Kazama, S.-Y. Wang, S. W. Y. Tam, Tzu-Fang Chang, Bo-Jhou Wang, K. Asamura, S. Kasahara, S. Yokota, T. Hori, K. Keika, Y. Kasaba, M. Shoji, Y. Kasahara, A. Matsuoka and I. Shinohara
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] A statistical study of the relationship between Pc1 wave propagation and ionospheric plasma density structures using superposed epoch analysis (2019)
  • Author(s): Hyangpyo Kim, Junga Hwang, Jaeheung Park, Kazuo Shiokawa Kazuo, and Yoshizumi Miyoshi
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Statistical study of EMIC wave-related electron precipitation at subauroral latitude (2019)
  • Author(s): Hirai, A., F. Tsuchiya, T. Obara, Y. Kasaba, Y. Kato, H. Misawa, K. Shiokawa. Y. Miyoshi, S. Kurita, and M. Connors
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Spectral analysis of severe magnetic fluctuations at substorm onset in the near-Earth plasma sheet observed by THEMIS -D and E (2019)
  • Author(s): Heqiucen Xu, and Kazuo Shiokawa
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Spatial extent of quasi-periodic emission simultaneously observed by Arase and Van Allen Probes on Nov. 29, 2018 (2019)
  • Author(s): C. Martinez-Calderon, F. Nemec, Y. Katoh, K. Shiokawa , Y. Kasahara, S. Matsuda, F. Tsuchiya, A. Kumamoto, M. Teramoto, A. Matsuoka, Y. Miysohi, O. Santolik, and G. Hospodarsky
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Plasmaspheric EMIC waves excited through mode conversion from equatorial noise under existence of M/Q=2 ions (2019)
  • Author(s): Y. Miyoshi, S. Matsuda, S. Kurita , K.Nomura, K. Keika , M. Shoji, N. Kitamura, Y. Kasahara, A. Matsuoka, I. Shinohara, K. Shiokawa, S. Machida, O. Santolik, S. Boardsen, R. Horne , and J. Wygant
  • Organizer: AOGS 16th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Rapid Loss of Relativistic Electrons by EMIC Waves in the Outer Radiation Belt Observed by Arase, Van Allen Probes, and the PWING Ground Stations (2019)
  • Author(s): S. Kurita, Y. Miyoshi, K. Shiokawa, N. Higashio, T. Mitani, T. Takashima, A. Matsuoka, I. Shinohara, C. A. Kletzing, J. B. Blake, S. G. Claudepierre, M. Connors, S. Oyama, T. Nagatsuma, K. Sakaguchi, D. Baishev, and Y. Otsuka
  • Organizer: AOGS 16th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Proposed Projects 2019: related to the CHAMOS activity (2019)
  • Author(s): Oyama, S.
  • Organizer: CHAMOS meeting
  • Int'l Joint Research
• [Presentation] Large scale ducting of Pc1 pulsations observed by Swarm satellite and multiple ground networks (2019)
  • Author(s): Hyangpyo Kim, Kazuo Shiokawa, et al.
  • Organizer: EGU General Assembly 2019
  • Int'l Joint Research
• [Presentation] Non-linear EMIC-driven electron scattering at sub-MeV energies: validation through observation and simulation (2019)
  • Author(s): Aaron Hendry, Kazuo Shiokawa, et al.
  • Organizer: EGU General Assembly 2019
  • Int'l Joint Research
• [Presentation] SDI-3D project: MIT coupling study with the EISCAT_3D (2019)
  • Author(s): Oyama. S., Anita Aikio, Mark G. Conde, Heikki Vanhamaki, Ilkka Virtanen, Thomas Ulich, Urban Brandstrom, Pekka Verronen, Monika Anderson et al.
  • Organizer: EISCAT_3D user meeting
  • Int'l Joint Research
• [Presentation] Longitudinal structure of oxygen torus and its coincidence with EMIC wave in the inner magnetosphere: Van Allen Probe B and Arase observations of the 12 September 2017 event (2019)
  • Author(s): Nose, M., A. Matsuoka, A. Kumamoto, Y. Kasahara, J. Goldstein, M. Teramoto, F. Tsuchiya, S. Matsuda, M. Shoji, S. Imajo, S. Oimatsu, K. Yamamoto, Y. Obana, R. Nomura, A. Fujimoto, I. Shinohara, Y. Miyoshi, W. S. Kurth, C. A. Kletzing, C. W. Smith, R. J. MacDowall, H. Spence, and G. Reeves
  • Organizer: Ion Composition in the Sun-Earth System (ICSES) meeting
  • Int'l Joint Research / Invited
• [Presentation] Modeling Ion Composition Effects in the Inner Magnetosphere (2019)
  • Author(s): Vania Jordanova, Miles Engel, Michael Henderson, Yoshizumi Miyoshi, Ryosuke Fujii, Kazuo Shiokawa et al.
  • Organizer: Ion Composition in the Sun-Earth System (ICSES): Measurements/Implications/Theory
  • Int'l Joint Research
• [Presentation] Data publication and data citation in solar terrestrial physics in Japan (2019)
  • Author(s): Nose, M., Y. Murayama, T. Kinoshita, Y. Koyama, M. Nishioka, M. Ishii, M. Kunitake, and K. Imai
  • Organizer: IUGG 2019
  • Int'l Joint Research
• [Presentation] Application of magneto-impedance sensor to geomagnetic field measurements (2019)
  • Author(s): Nose, M., R. Nomura, K. Asamura, H. Aoyama, T. Kawano, A. Matsuoka, K. Kitamura, Y. Koyama, H. Matsumoto, and M. Hirahara
  • Organizer: IUGG 2019
  • Int'l Joint Research
• [Presentation] Longitudinal structure of oxygen torus and its coincidence with EMIC wave in the inner magnetosphere: Van Allen Probe B and Arase observations of the 12 September 2017 event (2019)
  • Author(s): Nose, M., A. Matsuoka, A. Kumamoto, Y. Kasahara, J. Goldstein, M. Teramoto, F. Tsuchiya, S. Matsuda, M. Shoji, S. Imajo, S. Oimatsu, K. Yamamoto, Y. Obana, R. Nomura, A. Fujimoto, I. Shinohara, Y. Miyoshi, W. S. Kurth, C. A. Kletzing, C. W. Smith, and R. J. MacDowall
  • Organizer: IUGG 2019
  • Int'l Joint Research
• [Presentation] Study of Longitudinal Extent of Magnetospheric ELF/VLF Waves Using PWING Six Ground Stations (2019)
  • Author(s): Yuhei Takeshita, Kazuo Shiokawa, Yoshizumi Miyoshi, Shin-Ichiro Oyama, Mitsunori Ozaki, Jyrki Manninen, Shin-Ichiro Oyama, Martin Connors, Dmitry Baishev, Vladimir Kurkin, and Alexey Oinats
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] On the effect of thermospheric neutral winds and sporadic E layers in the formation and evolution of conjugate electrified medium-scale traveling ionospheric disturbances (2019)
  • Author(s): V. L. Narayanan, K. Shiokawa, Y. Otsuka, D. Neudegg
  • Organizer: IUGG General Assembry
  • Int'l Joint Research / Invited
• [Presentation] Characteristic change of propagation of medium-scale traveling ionospheric disturbances at the equatorward side of the dusk side auroral oval: Observation by 630-nm airglow imager over Tromsoe (2019)
  • Author(s): Sneha Yadav, K. Shiokawa, S. Oyama, and Y. Otsuka
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Development of a Phase Velocity Spectral Analysis Software (M-transform) for Airglow Data and Its Application on Atmospheric Gravity Waves Studies (2019)
  • Author(s): S. Perwitasari, T. Nakamura, M. Kogure, Y. Tomikawa, M.K. Ejiri, K. Shiokawa
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Recent Results of Ground-Satellite Observations of Aurora, Airglow, and Plasma Waves at Subauroral Latitudes by the PWING Project (2019)
  • Author(s): Kazuo Shiokawa, Yuhei Takeshita, Sneha Yadav, Yudai Inaba, Yoshizumi Miyoshi, Shin-Ichiro Oyama, Yuichi Otsuka et al.
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Statistics and Ground-Satellite Measurements of Auroral/Resonant-Scattering 427.8-nm Emission Observed at Subauroral Latitudes (2019)
  • Author(s): K. Shiokawa, Yuichi Otsuka, Martin Connors, Masahito Nose, Satoshi Tsuchiya, Yuki Takagi, Shun Imajo, Yoshimasa Tanaka, Yoshizumi Miyoshi, Keisuke Hosokawa, Yoichi Kazama, Shiang-Yu Wang, Sunny W. Y. Tam, Kazushi Asamura, Satoshi Kasahara, Shoichiro Yokota, Tomoaki Hori, Kunihiro Keika, Ayako Matsuoka
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Oscillations of Atmospheric Electric Field during Snowfall around Tokyo, Japan, with the 95-GHz Cloud Radar FALCON-I (2019)
  • Author(s): Hiroyo Ohya, Kota Nakamori, Masashi Kamogawa, Tomoyuki Suzuki, Toshiaki Takano, Kazuomi Morotomi, Hiroyuki Nakata, and Kazuo Shiokawa
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Validation of nonlinear EMIC-driven electron scattering at sub-MeV energies through experimental observation and simulation (2019)
  • Author(s): Hendry A. T., O. Santolik, C. A. Kletzing, C. J. Rodger, K. Shiokawa, D. Baishev
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Properties of quasi-periodic ELF/VLF emissions from a conjugated event between the Arase satellite, Van Allen Probes A, and B (2019)
  • Author(s): C. Martinez-Calderon, F. Nemec, K. Shiokawa, Y. Katoh, Y. Kasahara, S. Matsuda, F. Tsuchiya, A. Kumamoto, M. Teramoto, A. Matsuoka, Y. Miysohi, O. Santolik, and G. Hospodarsky
  • Organizer: IUGG General Assembry
  • Int'l Joint Research
• [Presentation] Cross-energy coupling process in the terrestrial radiation belts; The Arase observations (2019)
  • Author(s): Miyoshi Y., I. Shinohara, T. Takashima, K. Asamura, S-Y. Wang, Y. Kazama, S. Kasahara, S. Yokota, T. Miatni, N. Higashi, Y. Kasahara, Y. Kasaba, S. Yagitani, A. Matsuoka, H. Kojima, Y. Katoh, K. Shiokawa, K. Seki, Geospace Exploration ERG project Group
  • Organizer: Magnetosphere of Outer Planets
  • Int'l Joint Research / Invited
• [Presentation] Recent results on ULF/VLF waves in the inner magnetosphere from the ground-based PWING longitudinal network at subauroral latitudes (2019)
  • Author(s): Baishev, D. G., K. Shiokawa et al.
  • Organizer: Optical studies of high-latitude upper atmosphere
  • Int'l Joint Research
• [Presentation] Simultaneous observation of magnetospheric plasma waves and PMWE observed by Arase satellite and MST radars (2019)
  • Author(s): Yoshimasa. Tanaka, Takanori Nishiyama, Akira Kadokura, Mitsunori Ozaki, Yoshizumi Miyoshi, Kazuo Shiokawa, et al.
  • Organizer: SuperDARN Workshop
  • Int'l Joint Research / Invited
• [Presentation] SDI-3D project team, Spatial distribution of the polar thermospheric wind acceleration and importance of the 2D measurement (2019)
  • Author(s): Oyama, S., Anita Aikio, Mark G. Conde, Heikki Vanhamaki, Ilkka Virtanen, Thomas Ulich, Lassi Roininen, Pekka Verronen, Takeshi Sakanoi
  • Organizer: SuperDARN Workshop
  • Int'l Joint Research
• [Presentation] IMF By dependence of polar cap patch occurrence: statistics using airglow data from Eureka, Canada in comparison with SuperDARN convection patterns (2019)
  • Author(s): Keisuke Hosokawa, Michitaro Nagata, Kazuo Shiokawa, Yuichi Otsuka
  • Organizer: SuperDARN Workshop
  • Int'l Joint Research
• [Presentation] Equatorial Plasma Bubble seeding through dynamical coupling of Troposphere to Ionosphere (2019)
  • Author(s): H. Takahashi, C.M. Wrasse, C.A.O.B Figueiredo, D. Barros, I. Paulino, P. Essien, M. A. Abdu, Y. Otsuka and K. Shiokawa
  • Organizer: The 2nd EPB Workshop on Scientific Challenges in Ionospheric Plasma Bubble Forecasting
  • Int'l Joint Research
• [Presentation] Conjugate observation of magnetospheric plasma waves and polar mesosphere winter echoes by Arase satellite and MST radars in both hemispheres (2019)
  • Author(s): Yoshimasa. Tanaka, Takanori Nishiyama, Akira Kadokura, Mitsunori Ozaki, Yoshizumi Miyoshi, Kazuo Shiokawa et al.
  • Organizer: The 4th Asia Research Node Symposium on Humanosphere Science 第407回生存圏シンポジウム 第4回生存圏アジアリサーチノード
  • Int'l Joint Research
• [Presentation] Practice of research data management in solar-terrestrial physics (2019)
  • Author(s): Nose, M
  • Organizer: The VarSITI Closing Symposium (VarSITI2019)
  • Int'l Joint Research / Invited
• [Presentation] ULF Modulation of Energetic Electron Precipitations Observed by VLF/LF Standard Radio Waves (2019)
  • Author(s): T. Miyashita, H. Ohya, F. Tsuchiya, H. Nakata, T. Takano, K. Shiokawa, Y. Miyoshi, and M. Connors
  • Organizer: URSI-Japan Radio Science Meeting
  • Int'l Joint Research
• [Presentation] Mapping of Digital Camera Images from the International Space Station: Application for Pulsating Aurora Studies (2019)
  • Author(s): Sota Nanjo, Yuta Hozumi, Keisuke Hosokawa, Ryuho Kataoka, Yoshizumi Miyoshi, Shin-ichiro Oyama, Mitsunori Ozaki, Kazuo Shiokawa and Satoshi Kurita
  • Organizer: URSI-Japan Radio Science Meeting
  • Int'l Joint Research
• [Presentation] Solar flare effects of the D-region ionosphere using daytime tweek atmospherics and VLF/LF standard radio waves (2019)
  • Author(s): Hiroyo Ohya, Kodai Yamanobe, Fuminori Tsuchiya, K. Yamashita, Y. Takahashi, Kazuo Shiokawa, and Yoshizumi Miyoshi
  • Organizer: URSI-Japan Radio Science Meeting
  • Int'l Joint Research
• [Presentation] Neutral and plasma density perturbations in the top-/bottom-side ionosphere associated with MSTIDs (2019)
  • Author(s): Shin Suzuki, Jaeheung Park, Yuichi Otsuka, Kazuo Shiokawa, Huixin Liu, and Hermann Luhr
  • Organizer: VarSITI Closing Symposium
  • Int'l Joint Research
• [Presentation] A review on scientific achievements of the SCOSTEP VarSITI program (2014-2018) (2019)
  • Author(s): Kazuo Shiokawa and Katya Georgieva
  • Organizer: VarSITI Closing Symposium
  • Int'l Joint Research / Invited
• [Presentation] THE GENERATION OF MONOCHROMATIC PC4 PULSATIONS BY THE ELECTRON CLOUD (2019)
  • Author(s): Belakhovsky V.B., Shiokawa K., Matsuoka A., Wang S.-Y., Kazama Y., Tam S., Kasahara S., Yokota S., Keika K., Hori T., Shinohara I., 4, Miyoshi Y.
  • Organizer: VarSITI Closing Symposium
  • Int'l Joint Research
• [Presentation] THE LONG-LASTING QP EMISSIONS OBSERVED ON ERG SATELLITE AND LOVOZERO STATION (2019)
  • Author(s): Belakhovsky V.B., Shiokawa K., Matsuoka A., Kasahara Y., Shinohara I, Miyoshi Y.
  • Organizer: VarSITI Closing Symposium
  • Int'l Joint Research
• [Presentation] PWINGプロジェクトの現状 (2019)
  • Author(s): 塩川和夫、PWING Team
  • Organizer: あらせサイエンス会議
• [Presentation] Spatial distribution of the polar thermospheric wind acceleration and importance of the 2D measurement with SDIs (2019)
  • Author(s): Oyama, S., Anita Aikio, Mark G. Conde, Heikki Vanhamaki, Ilkka Virtanen, et al.
  • Organizer: 極域科学シンポジウム
  • Int'l Joint Research
• [Presentation] Asymmetrically traveling auroral surges in the northern and southern hemisphere (2019)
  • Author(s): Herbert Akihito Uchida, Ryuho Kataoka, Kiyoka Murase, Akira Kadokura, Akira Sessai Yukimatu, Shigeru Fujita, Ayako Matsuoka, Shoya Matsuda, Yoshiya Kasahara, Masafumi Shoj, Yoshizumi Miyosh, Iku Shinohara, Kazuo Shiokawa, Yusuke Ebihara, Satoshi Kurita, Keisuke Hosokawa
  • Organizer: 極域科学シンポジウム
  • Int'l Joint Research
• [Presentation] 畳み込みニューラルネットワークによるフラッシュオーロラの自動検出 (2019)
  • Author(s): 源田 斗輝 , 尾崎 光紀 , 八木谷 聡 , 今村 幸祐 , 塩川 和夫 , 三好 由純 , 大山 伸一郎 , 片岡 龍峰 , 海老原 祐輔, 細川 敬祐
  • Organizer: 太陽地球系物理学分野のデータ解析手法、ツールの理解と応用
• [Presentation] 磁場モデルを用いた内部磁気圏衛星の電離圏における位置の同定とオーロラ画像解析 (2019)
  • Author(s): 稲葉 裕大、塩川 和夫、大山 伸一郎、大塚 雄一
  • Organizer: 太陽地球系物理学分野のデータ解析手法、ツールの理解と応用
• [Presentation] レイトレーシング解析を用いたフラッシュオーロラの時空間特性 (2019)
  • Author(s): 井上智寛、尾崎光紀、田中良昌、後藤由貴、八木谷聡、笠原禎也、塩川和夫、三好由純、片岡龍峰、門倉昭、海老原祐輔
  • Organizer: 太陽地球系物理学分野のデータ解析手法、ツールの理解と応用
• [Presentation] 国際宇宙ステーションからのデジタルカメラ観測を用いた脈動オーロラ時空間特性の広域可視化 (2019)
  • Author(s): 南條 壮汰，穂積 裕太，細川 敬佑，他
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] 低高度衛星からの光学観測を用いた磁気嵐時の孤立型プロトンオーロラの汎地球的連続観測 (2019)
  • Author(s): 川合悠生、細川 敬祐、穂積裕太、塩川和夫、栗田怜、尾崎光紀、坂野井健
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] 2017年3月28日にあらせ衛星で観測されたSARアークのソース領域における初めてのプラズマ・電磁場観測 (2019)
  • Author(s): 稲葉 裕大、塩川 和夫、大山 伸一郎、大塚 雄一、新堀淳樹、風間 洋一、Shiang-Yu Wang、Sunny, W. Y. Tam 、 横田 勝一郎、笠原 慧、桂華邦裕、堀智昭、松岡 彩子、小路 真史、 笠原 禎也、熊本 篤志、笠羽 康正、三好 由純、篠原 育、 Arto Oksanen
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Global spatio-temporal development of magnetospheric ELF/VLF waves based on ground-satellite observation and RAM simulation (2019)
  • Author(s): Yuhei Takeshita, Kazuo Shiokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Yoshiya Kasahara, Martine Connors, Jyrki Manninen, Craig Kletzing, Vania Jordanova, Shin-Ichiro Oyama, Dmitry Baishev, Vladimir Kurkin, and Alexey Oinats
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Energetic electron precipitations showing ULF modulation observed by VLF/LF standard radio waves (2019)
  • Author(s): Takuya Miyashita, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, Toshiaki Takano, Kazuo Shiokawa, Yoshizumi Miyoshi
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Improvement of estimation method for propagation distance of tweek atmospherics (2019)
  • Author(s): Masafumi Kanno, Hiroyo Ohya, Kazuo Shiokawa, Hiroyuki Nakata, Toshiaki Takano
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Solar X-ray effects on the D-region ionosphere using tweek atmospherics (2019)
  • Author(s): Kodai Yamanobe, Hiroyo Ohya, Hiroyuki Nakata, Toshiaki Takano, Kazuo Shiokawa
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Arase observation of the source region of auroral arcs and diffuse auroras in the inner magnetosphere (2019)
  • Author(s): K. Shiokawa, M. Nose, S. Imajo, Y. Tanaka, Y. Miyoshi, K. Hosokawa, M. Connors, M. Engebretson, Y. Kazama, S.-Y. Wang, S. W. Y. Tam, Tzu-Fang Chang, Bo-Jhou Wang, K. Asamura, S. Kasahara, S. Yokota, T. Hori, K. Keika, Y. Kasaba, M. Shoji, Y. Kasahara, A. Matsuoka and I. Shinohara
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Statistical study of EMIC wave-related electron precipitation at subauroral latitude (2019)
  • Author(s): Hirai, A., F. Tsuchiya, T. Obara, Y. Kasaba, Y. Kato, H. Misawa, K. Shiokawa. Y. Miyoshi, S. Kurita, and M. Connors
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Syowa-Arase-Tjornes conjugate observation of auroral breakup and pulsating aurora (2019)
  • Author(s): Herbert Akihito Uchida, Ryuho Kataoka, Kiyoka Murase, Yusuke Ebihara, Shigeru Fujita, Akira Kadokura, Akira Sessai Yukimatu, Shoya Matsuda, Yoshiya Kasahara, Yoshizumi Miyoshi, Iku Shinohara, Kazuo Shiokawa, Keisuke Hosokawa, Satoshi Kurita, Arase Pis
  • Organizer: 第146回地球電磁気・地球惑星圏学会講演会
• [Presentation] Longitudinal structure of oxygen torus and its coincidence with EMIC wave in the inner magnetosphere: Van Allen Probe B and Arase observations of the 12 September 2017 event (2019)
  • Author(s): Nose, M., A. Matsuoka, A. Kumamoto, Y. Kasahara, J. Goldstein, M. Teramoto, F. Tsuchiya, S. Matsuda, M. Shoji, S. Imajo, S. Oimatsu, K. Yamamoto, Y. Obana, R. Nomura, A. Fujimoto, I. Shinohara, Y. Miyoshi, W. S. Kurth, C. A. Kletzing, C. W. Smith, R. J. MacDowall, H. Spence, and G. Reeves
  • Organizer: 第146回地球電磁気・地球惑星圏学会総会
• [Presentation] Propagation effects of whistler mode waves on the spatiotemporal characteristics of flash auroras (2019)
  • Author(s): Tomohiro Inoue, Ozaki Mitsunori, Yoshimasa Tanaka, Yoshitaka Goto, Satoshi Yagitani, Yoshiya Kasahara, Kazuo Shiokawa , Yoshizumi Miyoshi, Ryuho Kataoka , Akira Kadokura, Yusuke Ebihara
  • Organizer: 第415回生存圏シンポジウム "Workshop on radio science and wave measurement technology in space plasma （宇宙プラズマにおける電波科学と電波計測技術に関する研究集会）"
• [Presentation] Future observation plan of conjugate observations of isolated proton auroras at Halley VI in Antarctica and Nain in Canada (2019)
  • Author(s): S. Hashimoto, M. Ozaki, K. Shiokawa, R. Horne, T. Moffat-Griffin, Y. Ogawa, A. Kadokura, M. Nose, K. Hosokawa, Y. Miyoshi, C.-W. Jun, Y. Ebihara, S. Yagitani
  • Organizer: 第415回生存圏シンポジウム "Workshop on radio science and wave measurement technology in space plasma（宇宙プラズマにおける電波科学と電波計測技術に関する研究集会）"
• [Presentation] ハワイで得られた大気光画像に見られる中間圏・電離圏波動の水平位相速度・パワースペクトル密度分布の統計解析 (2019)
  • Author(s): 内藤豪人、塩川和夫、大塚雄一、坂野井健、斎藤昭則、中村卓司
  • Organizer: 中間圏・熱圏・電離圏 (MTI) 研究集会
• [Presentation] ハワイで得られた大気光画像中に見られる中間圏・電離圏波動の水平位相速度分布の統計解析 (2019)
  • Author(s): 内藤豪人、塩川和夫、大塚雄一、坂野井健、斎藤昭則、中村卓司
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 極域熱圏風の加速領域の空間分布と二次元観測の重要性 (2019)
  • Author(s): 大山 伸一郎、Aikio Anita、Conde Mark、Vanhamaki Heikki、Virtanen Ilkka、Ulich Thomas et al.
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 太陽地球系結合過程の研究基盤形成 (2019)
  • Author(s): 山本 衛、橋口 浩之、横山 竜宏、宮岡 宏、小川 泰信、塩川 和夫、野澤 悟徳、吉川 顕正、津田 敏隆
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 機械学習を用いたフラッシュオーロラの時空間解析 (2019)
  • Author(s): 源田斗輝、井上拓海、尾崎光紀、八木谷聡、今村幸祐、塩川和夫、三好由純、大山伸一郎、片岡龍峰、海老原祐輔、細川敬祐
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 地上全天カメラと内部磁気圏衛星あらせによるサブオーロラ帯のSARアークの初めての同時観測 (2019)
  • Author(s): 稲葉裕大、塩川和夫、大山伸一郎、大塚雄一、新堀淳樹、風間洋一、Shiang-Yu Wang、横田勝一郎、 松岡彩子、笠原禎也、熊本篤志、笠羽康正、三好由純、篠原育
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Study of spatio-temporal development of magnetospheric ELF/VLF waves for the 26-30 March 2017 storm based on ground and satellite observations and the RAM simulations (2019)
  • Author(s): Yuhei Takeshita, Kazuo Shiokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Yoshiya Kasahara, Martine Connors, Jyrki Manninen, Craig Kletzing
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Atmospheric responses in both hemispheres to relativistic electron precipitation (2019)
  • Author(s): Yoshimasa Tanaka, Takanori Nishiyama, Akira Kadokura, Mitsunori Ozaki, Yoshizumi Miyoshi, Shin-ichiro Oyama, et al.
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Spatiotemporal characteristics on the source region of flash aurora using ray tracing analysis (2019)
  • Author(s): Tomohiro Inoue, Mitsunori Ozaki, Yoshitaka Goto, Satoshi Yagitani, Yoshiya Kasahara, Kazuo Shiokawa, Yoshizumi Miyoshi, Ryuho Kataoka, Yusuke Ebihara
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Modulation of the D-region ionosphere by Pc5 waves observed by VLF/LF standard radio waves (2019)
  • Author(s): Takuya Miyashita, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, Toshiaki, Takano, Kazuo Shiokawa, Yoshizumi Miyoshi
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Westward turning motions of nighttime medium-scale traveling ionospheric disturbances (MSTIDs) at the equatorward side of the dusk side auroral oval associated with auroral brightening (2019)
  • Author(s): Sneha Yadav, K. Shiokawa, S. Oyama, and Y. Otsuka
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Neutral and plasma density perturbations in the top-/bottom-side ionosphere associated with MSTIDs (2019)
  • Author(s): Shin Suzuki, Jaeheung Park, Yuichi Otsuka, Kazuo Shiokawa, Huixin Liu, and Hermann Luhr
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Application of magneto-impedance sensor to geomagnetic field measurements (2019)
  • Author(s): Nose, M., R. Nomura, K. Asamura, H. Aoyama, T. Kawano, A. Matsuoka, K. Kitamura, Y. Koyama, H. Matsumoto, and M. Hirahara
  • Organizer: 日本地球惑星科学連合2019年大会
  • Int'l Joint Research
• [Presentation] Recent activity of data publication and data citation in the international community of geomagnetism (2019)
  • Author(s): Nose, M., and Y. Murayama
  • Organizer: 日本地球惑星科学連合2019年大会
  • Int'l Joint Research
• [Presentation] Multiple satellite observations of oxygen torus in the inner magnetosphere (2019)
  • Author(s): Nose, M., A. Matsuoka, A. Kumamoto, Y. Kasahara, J. Goldstein, M. Teramoto, F. Tsuchiya, S. Matsuda, M. Shoji, S. Imajo, S. Oimatsu, K. Yamamoto, Y. Obana, R. Nomura, A. Fujimoto, I. Shinohara, Y. Miyoshi, W. S. Kurth, C. A. Kletzing, C. W. Smith, and R. J. MacDowall
  • Organizer: 日本地球惑星科学連合2019年大会
  • Int'l Joint Research
• [Presentation] A method for locating lightning discharges using tweek atmospherics (2019)
  • Author(s): Masafumi Kanno, Hiroyo Ohya, Kazuo Shiokawa
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Solar flare effects of the D-region ionosphere using daytime tweek atmospherics (2019)
  • Author(s): Kodai Yamanobe, Hiroyo Ohya, Kazuo Shiokawa, Hiroyuki Nakata, and Toshiaki Takano
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Current status of the ground-based multi-point network observation of the upper atmosphere, ionosphere, and magnetosphere by the PWING Project and the Optical Mesosphere Thermosphere Imagers (OMTIs) (2019)
  • Author(s): Kazuo Shiokawa, Yuichi Otsuka, and the PWING Team
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Simultaneous Arase-ground observations of a purple and green auroral arc (2019)
  • Author(s): Kazuo Shiokawa, Masahito Nose, Satoshi Tsuchiya, Yuki Takagi, Shun Imajo, Yoshimasa Tanaka, Yoshizumi Miyoshi, Keisuke Hosokawa, Yoichi Kazama, Shiang-Yu Wang, Sunny W. Y. Tam, Kazushi Asamura, Satoshi Kasahara, Shoichiro Yokota, Tomoaki Hori, Kunihiro Keika, Ayako Matsuoka
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Statistical study of auroral/resonant-scattering 427.8-nm emission observed at subauroral latitudes over 14 years (2019)
  • Author(s): K. Shiokawa, Y. Otsuka, and M. Connors
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Auroral fragmentation into patches and pressure balance condition in the source magnetosphere (2019)
  • Author(s): K. Shiokawa and K. Nishi
  • Organizer: 日本地球惑星科学連合2019年大会
  • Invited
• [Presentation] Study of cloud effects on atmospheric electric field during lightning activities and snowfall using the 95-GHz cloud radar FALCON-I (2019)
  • Author(s): Hiroyo Ohya, Kota Nakamori, Masashi Kamogawa, Tomoyuki Suzuki, Toshiaki Takano, Kazuomi Morotomi, Hiroyuki Nakata, and Kazuo Shiokawa
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Statistical study of IPDP type EMIC wave-related electron precipitation at subauroral latitude (2019)
  • Author(s): Hirai, A., F. Tsuchiya, T. Obara, Y. Kasaba, Y. Kato, H. Misawa, K. Shiokawa. Y. Miyoshi, S. Kurita, and M. Connors
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Study of quiet-time high-latitude thermospheric wind using a Fabry-Perot interferometer at Tromsoe: Averages and exceptional events (2019)
  • Author(s): Heqiucen Xu, Kazuo Shiokawa, and S.-I. Oyama
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Study on the pulse noise removal technique for Pc1 geomagnetic pulsations on the ground by signal processing (2019)
  • Author(s): Fumiya Komase, Tomohiro Inoue, Mitsunori Ozaki, Satoshi Yagitani, Kazuo Shiokawa, Masahito Nose, Tsutomu Nagatsuma
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Conjugated quasi-periodic ELF/VLF emissions between the Arase satellite and both Van Allen Probes (2019)
  • Author(s): C. Martinez-Calderon, F. Nemec, K. Shiokawa, Y. Katoh, Y. Kasahara, S. Matsuda, F. Tsuchiya, A. Kumamoto, M. Teramoto, A. Matsuoka, Y. Miysohi, O. Santolik, and G. Hospodarsky
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 地球科学におけるデータ出版・データ引用に向けての国際的な取り組み, (2019)
  • Author(s): 能勢正仁, 村山泰啓, 木下武也, 小山幸信, 西岡未知, 石井守, 國武学, 今井弘二
  • Organizer: 日本地震学会2019年度秋季大会
  • Invited
• [Remarks] ERG Science Center
  • URL: http://ergsc.isee.nagoya-u.ac.jp/
• [Remarks] IUGONET Type-A
  • URL: http://search.iugonet.org/list.jsp
• [Remarks] First ERG-Ground Campaign Observation (Wiki)
  • URL: https://ergsc.isee.nagoya-u.ac.jp/mw/index.php/CampaignObs/Campaign2017/
• [Remarks] ERG-GBO Conjunction Interval Finder
  • URL: http://gwave.cei.uec.ac.jp/cgi-bin/hosokawa/erg/erg.cgi
• [Remarks] PWING Project
  • URL: http://www.isee.nagoya-u.ac.jp/dimr/PWING/