International joint research of geospace variability by combining multi-point ground and satellite observations and modeling

• Project/Area Number: 22K21345
• Research Category: Fund for the Promotion of Joint International Research (International Leading Research )
• Allocation Type: Multi-year Fund
• Review Section: Science and Engineering
• 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, 教授 (10377781) ; 小川 泰信 国立極地研究所, 共同研究推進系, 教授 (00362210) ; 横山 竜宏 京都大学, 生存圏研究所, 准教授 (30397525) ; 吉川 顕正 九州大学, 国際宇宙惑星環境研究センター, 教授 (70284479) ; 謝 怡凱 京都大学, 生存圏研究所, 講師 (30973820) ; Liu Huixin 九州大学, 国際宇宙惑星環境研究センター, 教授 (70589639)
• Project Period (FY): 2022-12-20 – 2029-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥689,000,000 (Direct Cost: ¥530,000,000、Indirect Cost: ¥159,000,000); Fiscal Year 2028: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2027: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2026: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2025: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2024: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2023: ¥106,600,000 (Direct Cost: ¥82,000,000、Indirect Cost: ¥24,600,000); Fiscal Year 2022: ¥49,400,000 (Direct Cost: ¥38,000,000、Indirect Cost: ¥11,400,000)
• Keywords: ジオスペース / 宇宙天気予報 / オーロラ / プラズマバブル / 電離圏 / 宇宙科学 / 地球科学 / 地上観測ネットワーク

Outline of Research at the Start

地球のまわりの宇宙空間（ジオスペース）は、太陽から常に吹き付けている太陽風や下層大気から伝わってくる大気波動によって、常に大きく変動している。本研究では、日本が保有する国際地上多点ネットワーク観測網と欧米の最新の科学衛星による観測・グローバルなモデリングを組み合わせ、ジオスペース変動研究とその予測のさらなる国際化・高度化をはかり、安全・安心な宇宙利用に貢献する。また、若手研究者や大学院生を本研究に参加させることにより、地上観測・衛星観測・モデリングを組み合わせた研究を通して将来のジオスペース研究開発の中核を担う研究者・技術者を育成し、この分野の国際共同研究の中長期的な発展につなげていく。

Outline of Annual Research Achievements

・本事業の参画機関が保有・参加する国際地上観測ネットワークによるジオスペース・地球大気の観測を維持・継続し、国際共同研究のための観測データを取得した。また海外共同研究者と協力して、欧米の人工衛星やモデリング、日本のあらせ衛星等と組み合わせた国際共同研究を実施。地球大気の変動とジオスペースの相互作用の学術的問いに関する研究を進めた。これらによる代表的な成果として、JAXAのあらせ衛星や米国RBSP衛星と本事業の地上ネットワーク観測を組み合わせて、オーロラ帯よりも低緯度側の特異なオーロラであるSTEVEやSAについて、その源である磁気圏プラズマ・電磁場の特徴を明らかにした。
・多種多様な地上・衛星観測データやモデリングデータを統一して比較するために、各種データのデータベースを構築するとともに、それらを統合的に解析することを可能にする統合解析ツールの開発を、IUGONETや名古屋大学の統合データサイエンスセンターと連携して行った。これらのデータベースやツールは、国内外の研究者に広く公開され、より広範な国際共同研究の推進に貢献している。
・本研究の人材育成として、11件の研究者の海外派遣・招聘、11件の大学院生の海外派遣・招聘、大学院生・学部生の15件の海外フィールド観測派遣と11件の国内フィールド観測派遣を実施した。さらに、子供向けマンガ「宇宙天気ってなんだ！？」を日本語・英語で刊行し、本事業や国際組織SCOSTEPのWebで公開するとともに、SCOSTEPと連携して2025年2月の国連宇宙平和利用委員会で配布した。

Current Status of Research Progress

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

Reason

令和4年12月に本事業が採択されてから現在まで、本事業の参画機関が保有・参加するグローバルで総合的な国際地上観測ネットワークによるジオスペース・地球大気の観測を維持・継続し、国際共同研究のための観測データを取得することができている。この観測との比較のために、海外共同研究者であるドイツのStolle教授、米国のKistler教授・Lu博士らと協力して、彼らが開発・運用する欧米の人工衛星やモデリング、日本のあらせ衛星等と組み合わせた国際共同研究を進めている。また、これらの多種多様な地上・衛星観測データやモデリングデータを統一して比較するために、各種データのデータベースを構築するとともに、それらを統合的に解析することを可能にする統合解析ツールの開発を、IUGONETや名古屋大学の統合データサイエンスセンターと連携して行っている。また、本研究の人材育成として、2024年度は研究アシスタントとして博士後期学生6名とポスドク研究員6名を雇用している。2024年度は、11名の研究者と11名の大学院生の海外派遣・招聘、大学院生・学部生の15名の海外フィールド観測派遣や11名の国内フィールド観測派遣を実施した。さらに、国際組織SCOSTEP等と連携し、一般向け解説マンガシリーズ「宇宙天気ってなんだ！？」を日本語・英語で刊行し、本事業のWebで公開するとともに、SCOSTEPと連携して国連などの場で配布した。2024年度末には、3名の外部評価委員を招聘して、これまでの本事業の活動をレビューし、これまでの活動を高く評価していただくとともに、今後の活動についてさまざまな示唆を頂いた。以上のことから、本研究はおおむね順調に進展していると判断した。

Strategy for Future Research Activity

・本事業の参画機関が保有・参加するグローバルで総合的な国際地上観測ネットワークによるジオスペース・地球大気の観測を維持・継続し、太陽活動極大期に向かって活発化しつつあるジオスペース変動について、国際共同研究のための新しい観測データを取得する。この観測との比較のために、海外共同研究者であるドイツのStolle教授、米国のKistler教授・Lu博士らと緊密に連携し、彼らが開発・運用する欧米の人工衛星やモデリング、日本のあらせ衛星等と組み合わせた国際共同研究を推進する。これらを通して、地球大気の変動がジオスペースにどのように影響を及ぼすか、ジオスペースの変動が地球大気にどのように影響を及ぼすか、という２つの大きな学術的問いに迫っていく。
・多種多様な地上・衛星観測データやモデリングデータを統一して比較するために、引き続き、各種データのデータベースを構築するとともに、それらを統合的に解析することを可能にする統合解析ツールの開発を、IUGONETや名古屋大学の統合データサイエンスセンターと連携して行う。これらのデータベースやツールは、国内外の研究者に広く公開し、より広範な国際共同研究の推進に貢献していく。
・本研究の人材育成として、若手研究者・大学院生を本研究に参加させる。このため、博士後期学生を研究アシスタントとして雇用するとともに、博士号取得後の若手研究者をポスドク研究員として雇用する。これらの若手研究者や大学院生を海外Co-Iや海外研究協力者の研究機関に滞在させたり国内・海外フィールド観測に参加させたりすることで、地上のみならず衛星観測とモデリングという異なる視点から研究課題にアプローチできる広い視野を持って自立した研究者を育成していく。国際組織SCOSTEP等と連携し、ナイジェリアなどで国際スクールを開催したり、海外機関に所属している大学院生を日本に招聘する。

Research Products

• [Int'l Joint Research] University of New Hampshire/NCAR High Altitude Observatory(米国)
• [Int'l Joint Research] ライプニッツ大気物理学研究所(ドイツ)
• [Int'l Joint Research] EISCAT科学協会/UiTノルウェー北極大学(ノルウェー)
• [Int'l Joint Research] Athavasca University(カナダ)
• [Int'l Joint Research] University of Oulu(フィンランド)
• [Int'l Joint Research] University of New Hampshire/NCAR High Altitude Observatory(米国)
• [Int'l Joint Research] ライプニッツ大気物理学研究所(ドイツ)
• [Int'l Joint Research] EISCAT科学協会/UiTノルウェー北極大学(ノルウェー)
• [Int'l Joint Research] Athavasca University(カナダ)
• [Int'l Joint Research] University of Oulu(フィンランド)
• [Int'l Joint Research]
• [Int'l Joint Research] ニューハンプシャー大学/High-Altitude Observatory, NCAR/APL, Johns Hopkins University(米国)
• [Int'l Joint Research] ライプニッツ大気物理学研究所/University of Potsdam(ドイツ)
• [Int'l Joint Research] Physical Research Laboratory/Indian Institute of Geomagnetism/Vikram Sarabhai Space Centre(インド)
• [Int'l Joint Research] The Arctic University of Norway/EISCAT科学協会(ノルウェー)
• [Int'l Joint Research] National Research and Innovation Agency(インドネシア)
• [Int'l Joint Research]
• [Journal Article] Detection of ultrafast electron energization by whistler-mode chorus waves in the magnetosphere of Earth (2025)
  • Author(s): Kurita S.、Miyoshi Y.、Saito S.、Kasahara S.、Katoh Y.、Matsuda S.、Yokota S.、Kasahara Y.、Matsuoka A.、Hori T.、Keika K.、Teramoto M.、Shinohara I.
  • Journal Title: Scientific Reports Volume: 15 Issue: 1 Pages: 992-992
  • DOI: 10.1038/s41598-024-80693-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observations of daytime topside ionospheric irregularities in the afternoon equatorial ionosphere (2025)
  • Author(s): Jiang Chunhua、Wei Lehui、Yokoyama Tatsuhiro、Tian Rong、Liu Tongxin、Yang Guobin
  • Journal Title: Advances in Space Research Volume: 75 Issue: 1 Pages: 908-917
  • DOI: 10.1016/j.asr.2024.09.017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Resolving the generation mechanisms and electrodynamical effects of Medium Scale Traveling Ionospheric Disturbances (MSTIDs) (2025)
  • Author(s): Klenzing, J., K. Zawdie, E. Astafyeva, A. Belehaki, M. Burleigh, A. G. Burrell, C. A. O. B. Figueiredo, N. A. Frissell, W. Fu, D. Hickey, J. Huba, P. Inchin, S. R. Kaeppler, V. L. Narayanan, M. Sivakandan, J. Smith, C. Xiong, T. Yokoyama, M. Zettergren, and S.-R. Zhang
  • Journal Title: Frontiers in Astronomy and Space Sciences Volume: 12
  • DOI: 10.3389/fspas.2025.1539821
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multi-event analysis of STEVE, SAR arc, and red/green arc at subauroral latitudes using data from ground optical and radio instruments and the Arase and Van Allen Probes satellites (2025)
  • Author(s): Sugimura, R., K. Shiokawa, Y. Otsuka, S. Oyama, A. Oksanen, M. Connors, A. Kadokura, I. Poddelsky, N. Nishitani, S. G. Shepherd, et al.
  • Journal Title: J. Geophys. Res. Volume: 130 Issue: 2
  • DOI: 10.1029/2024ja032793
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Generation of Quasi‐Periodic Dayside Medium Scale Traveling Ionospheric Disturbances (MSTIDs) by Intermittent Lobe Reconnection (2025)
  • Author(s): Xiong Yating、Liu Huixin、Shi Run、Xing Zanyang、Lu Sheng、Zhang Qiang、Wang Zhiwei、Han Desheng
  • Journal Title: Geophysical Research Letters Volume: 52 Issue: 6
  • DOI: 10.1029/2024gl113857
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Modelling of three-dimensional structure and dynamics of the large-scale sporadic E layers over East Asia (2025)
  • Author(s): Qiu, L., Huixin Liu
  • Journal Title: J. Geophys. Res. Volume: 130
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Calibration of h'Es from VIPIR2 ionosondes in Japan (2025)
  • Author(s): Teraoka Sorai、Liu Huixin、Nishioka Michi、Saito Susumu、Takahashi Toru、Kumamoto Atsushi、Ashihara Yuki、Abe Takumi
  • Journal Title: Earth, Planets and Space Volume: 77 Issue: 1
  • DOI: 10.1186/s40623-025-02138-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Coincident/Simultaneous Observations of Stratospheric Concentric Gravity Waves and Concentric Traveling Ionospheric Disturbances Over the Continental U.S. in 2022 (2025)
  • Author(s): Kogure Masaru、Yue Jia、Chou Min‐Yang、Liu Huixin、Otsuka Yuichi、Randall Cora E.、Hoffmann Lars、Hozumi Yuta
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 130 Issue: 3
  • DOI: 10.1029/2024ja033429
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Wave Spectral Changes in the Thermosphere and Ionosphere Related to the PEDE 2018 Dust Event on Mars Observed by MAVEN NGIMS (2025)
  • Author(s): Nagata Noritsugu、Liu Huixin、Nakagawa Hiromu
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 130 Issue: 2
  • DOI: 10.1029/2024ja033014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Local Time Variations of Quiet Time Meridional Winds During Solar Minimum Solstices Based on ICON Observations and Numerical Simulations (2025)
  • Author(s): Yu Tingting、Cai Xuguang、Ren Zhipeng、Liu Huixin、Qiu Liuhui、Ma Han、Li Shaoyang、Wu Kun
  • Journal Title: Earth and Space Science Volume: 12 Issue: 2
  • DOI: 10.1029/2024ea003880
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-term changes in the dependence of <i>Nm</i>F2 on solar flux at Juliusruh (2025)
  • Author(s): Tan Jun Rios Maria Gloria、Borries Claudia、Liu Huixin、Mielich Jens
  • Journal Title: Annales Geophysicae Volume: 43 Issue: 1 Pages: 73-89
  • DOI: 10.5194/angeo-43-73-2025
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Strong ionospheric activity at the MWA site associated with plasma bubble measured by GNSS (2025)
  • Author(s): Yoshiura Shintaro、Otsuka Yuichi、Trott Cathryn M、Null Dev、Nishitani Nozomu、Takahashi Keitaro、Nishioka Michi、Perwitasari Septi、Shinbori Atsuki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: - Issue: 3 Pages: 556-561
  • DOI: 10.1093/pasj/psaf024
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Estimating the drift velocity of equatorial plasma bubbles by tracking SIFT and SURF points (2025)
  • Author(s): Yacoub, M., M. Abdelwahab, K. Shiokawa, and A. Mahrous
  • Journal Title: Adv. Space Res. Volume: 75 Issue: 2 Pages: 2391-2402
  • DOI: 10.1016/j.asr.2024.09.071
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Signatures of the long duration prompt penetration electric field in the 18 MHz HF radar observations over Thumba (2025)
  • Author(s): Krishnan, L. G., Shiokawa, K., Pant, T. K. and Vichare
  • Journal Title: J. Geophys. Res. Volume: 130 Issue: 1
  • DOI: 10.1029/2024ja033140
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Statistical analysis of Van Allen Probes-B observations of stable auroral red arc intervals in the overlap region between the plasmasphere and the ring current (2025)
  • Author(s): Sugimura, R., K. Shiokawa, Y. Miyoshi, C. Smith, H. Spence, and G. Reeves
  • Journal Title: Journal of Geophysical Research Volume: 130 Issue: 3
  • DOI: 10.1029/2024ja032893
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Responses of the Daytime Low and Equatorial Ionosphere and Thermosphere over the Indian Region during the Geomagnetic Storm of April 2023 (2025)
  • Author(s): Krishnan, L. G., K. Shiokawa, T. K. Pant, G. Lu, P. R. Shreedevi, Y. Otsuka and S. Sunda
  • Journal Title: J. Geophys. Res. Volume: 130 Issue: 3
  • DOI: 10.1029/2024ja033141
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Properties of EMIC waves and EMIC wave-driven electron precipitation in subauroral latitudes observed at Athabasca, Canada (2025)
  • Author(s): Hirai, A., F. Tsuchiya, T. Obara, Y. Miyoshi, Y. Katoh, Y. Kasaba, K. Shiokawa, A. Kumamoto, Y. Kasahara, S. Matsuda, H. Misawa, S. Kurita, C.-W. Jun, H. Ohya, M. G Connors
  • Journal Title: J. Geophys. Res. Volume: 130 Issue: 3 Pages: 1-20
  • DOI: 10.1029/2024ja033357
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Automatic Detection of Equatorial Plasma Bubbles in Airglow Images Using Two-Dimensional Principal Component Analysis and Explainable Artificial Intelligence (2025)
  • Author(s): Yacoub, M., M. Abdelwahab, K. Shiokawa, and A. Mahrous
  • Journal Title: Mach. Learn. Knowl. Extr. Volume: 7 Issue: 1 Pages: 26-26
  • DOI: 10.3390/make7010026
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simultaneous ground-satellite observations of ELF/VLF emissions generated by a strong magnetospheric compression (2025)
  • Author(s): Martinez-Calderon; C., K. Shiokawa; O. Santolik; S. Kurita; K. Keika; M. Connors; I. Schofield; M. Hanzelka; and W. Kurth
  • Journal Title: Earth Planets and Space Volume: 77 Issue: 1 Pages: 49-49
  • DOI: 10.1186/s40623-025-02170-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Satellite Traces: Ionogram Signatures of Bottom-Side Upwelling Structures - A Simulation Study (2025)
  • Author(s): Ankita, M., S. Tulasi Ram, T. Yokoyama, R. T. Tsunoda, A. P. Dimri, S. Mondal, and Chinmaya. Nayak
  • Journal Title: Geophys. Res. Lett. Volume: 52 Issue: 7
  • DOI: 10.1029/2024gl114119
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Longitudinal Range of the Eastward‐Traveling Equatorial Plasma Bubble Inducing Ionospheric Scintillation (2024)
  • Author(s): Abadi P.、Otsuka Y.、Saito S.、Yamamoto M.、Perwitasari S.、Muafiry I. N.、Putra A. Y.、Faturahman A.
  • Journal Title: Space Weather Volume: 22 Issue: 8
  • DOI: 10.1029/2024sw003908
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Terrestrial-origin O+ ions below 1 keV near the Moon measured with the Kaguya satellite (2024)
  • Author(s): Yamauchi, D., M. Nose, Y. Harada, K. Yamamoto, K. Keika, A. Nagamatsu, S. Yokota, Y. Saito, and A. Glocer
  • Journal Title: Earth, Planets and Space Volume: 76 Issue: 1
  • DOI: 10.1186/s40623-024-02107-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Global distribution of EMIC waves and its association to subauroral proton precipitation during the 27 May 2017 storm: Modeling and multipoint observations (2024)
  • Author(s): Shreedevi P. R., Y. Yu, Y. Miyoshi, X. Tian, M. Zhu, V. K. Jordanova, S. Nakamura, C.-W. Jun, S. Kumar, K. Shiokawa, M. Connors, et al.
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 6
  • DOI: 10.1029/2023ja032337
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spatiotemporal development of cosmic noise absorption at subauroral latitudes using multipoint ground-based riometers (2024)
  • Author(s): Kato, Y., K. Shiokawa, Y. Tanaka, M. Ozaki, A. Kadokura, S. Oyama, A. Oinats, M. Connors , and D. Baishev
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 7
  • DOI: 10.1029/2023ja032206
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of very low frequency wave intensities measured by a low-altitude spacecraft and on the ground (2024)
  • Author(s): Nemec, F., K. Drastichova, J. Manninen, C. Martinez-Calderon, K. Shiokawa, and M. Connors
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 7
  • DOI: 10.1029/2024ja032655
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Occurrence of mesospheric frontal structures over the high latitude station (2024)
  • Author(s): Chauhan, N., K. Shiokawa, S. Gurubaran, S. Nozawa, S. Oyama and T. Nakamura
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 7
  • DOI: 10.1029/2023ja032243
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First observation of temporal variation of STEVE altitudes using triangulation by two color cameras (2024)
  • Author(s): Chen, L., K. Shiokawa, M. Connors, Y. Kato, and T. Tsuboi
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 9
  • DOI: 10.1029/2024ja032436
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Precipitation of auroral electrons accelerated at very high altitudes: Impact on the ionosphere and a possible acceleration mechanism (2024)
  • Author(s): Imajo, S., Y. Miyoshi, Y. Kazama, K. Asamura, I. Shinohara, K. Shiokawa, Y. Kasahara, Y. Kasaba, A. Matsuoka, S.-Y. Wang, S. W. Y. Tam, et al.
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 9 Pages: 1-20
  • DOI: 10.1029/2024ja032696
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A triggering process for nonlinear EMIC waves driven by the compression of the dayside magnetosphere (2024)
  • Author(s): Jun, C. W., Y. Miyoshi, S. Nakamura, M. Shoji, T. Hori, J. Bortnik, L. Lyons, I. Shinohara, and A. Matsuoka
  • Journal Title: Geophys. Res. Lett. Volume: 51 Issue: 1
  • DOI: 10.1029/2023gl106860
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Global validation of data-assimilative electron ring current nowcast for space weather applications (2024)
  • Author(s): Haas Bernhard、Shprits Yuri Y.、Wutzig Michael、Szabo-Roberts、 M. G. Penaranda、A. M. Castillo Tibocha、Himmelsbach Julia、Wang Dedong、Miyoshi Yoshizumi、Kasahara Satoshi、Keika Kunihiro、Yokota Shoichiro、Shinohara Iku、Hori Tomo
  • Journal Title: Scientific Reports Volume: 14 Issue: 1 Pages: 2327-2327
  • DOI: 10.1038/s41598-024-52187-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Thermospheric wind response to March 2023 storm: Largest wind ever observed with a Fabry-Perot interferometer in Tromsoe, Norway since 2009. (2024)
  • Author(s): Oyama, S., Vanhamaki, H., Cai, L., Shinbori, A., Hosokawa, K., Sakanoi, T., et al.
  • Journal Title: Space Weather Volume: 22 Issue: 3
  • DOI: 10.1029/2023sw003728
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-resolution 3-D imaging of electron density perturbations using ultra-dense GNSS observation networks in Japan: an example of medium-scale traveling ionospheric disturbances (2024)
  • Author(s): Weizheng Fu, Yuichi Otsuka and Nicholas Ssessanga
  • Journal Title: Earth, Planets and Space Volume: 76 Issue: 1 Pages: 102-102
  • DOI: 10.1186/s40623-024-02051-2
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long Lifetime Hiss Rays in the Disturbed Plasmasphere (2024)
  • Author(s): Wu Zhiyong、Su Zhenpeng、Zheng Huinan、Wang Yuming、Miyoshi Yoshizumi、Shinohara Iku、Matsuoka Ayako、Kasahara Yoshiya、Tsuchiya Fuminori、Kumamoto Atsushi、Matsuda Shoya、Kasaba Yasumasa、Teramoto Mariko、Hori Tomoaki
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 4
  • DOI: 10.1029/2023gl107825
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Direct Observation of L‐X Mode of Auroral Kilometric Radiation in the Lower Latitude Magnetosphere by the Arase Satellite (2024)
  • Author(s): S. Zhang, Q. Yin, H. Yang, F. Xiao, Q. Zhou, Q. Yang, J. Tang, Z. Deng, Y. Kasahara, Y. Miyoshi, A. Kumamoto, Y. Nakamura, F. Tsuchiya, I. Shinohara, S. Nakamura, Y. Kasaba, T. Hori
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 5
  • DOI: 10.1029/2023gl105694
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Sub‐relativistic Electron Three‐Belt Event in the Earth's Radiation Belts: Observation and Explanation (2024)
  • Author(s): Chen Jia‐Li、Zou Hong、Hao Yi‐Xin、Ye Yu‐Guang、Miyoshi Yoshizumi、Matsuoka Ayako、Shinohara Iku、Teramoto Mariko、Xu Shi‐Ge
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 4
  • DOI: 10.1029/2023ja032213
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• [Journal Article] Direct Evidence of Drift‐Compressional Wave Generation in the Earth's Magnetosphere Detected by Arase (2024)
  • Author(s): Yamamoto K.、Rubtsov A. V.、Kostarev D. V.、Mager P. N.、Klimushkin D. Yu.、Nose M.、Matsuoka A.、Asamura K.、Miyoshi Y.、Yokota S.、Kasahara S.、Hori T.、Keika K.、Kasahara Y.、Kumamoto A.、Tsuchiya F.、Shoji M.、Nakamura S.、Shinohara I.
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 8 Pages: 1-11
  • DOI: 10.1029/2023gl107707
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simulating the Ring Current Proton Dynamics in Response to Radial Diffusion by Ultra‐Low‐Frequency (ULF) Waves (2024)
  • Author(s): Ma Longxing、Yu Yiqun、Liu Wenlong、Cao Jinbin、Miyoshi Yoshizumi
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 6
  • DOI: 10.1029/2023gl107326
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• [Journal Article] Field-aligned currents associated with pulsating auroral patches: Observation with Magneto-Impedance Magnetometer (MIM) onboard Loss through Auroral Microburst Pulsations (LAMP) sounding rocket (2024)
  • Author(s): Nose, M., K. Hosokawa, R. Nomura, M. Teramoto, K. Asamura, Y. Miyoshi, T. Mitani, T. Sakanoi, T. Namekawa, T. Kawano, Y. Iwanaga, S. Tatematsu, M. Hirahara, A. Halford, M. Shumko, M. R. Lessard, K. Lynch, N. Paschalidis, A. N. Jaynes, and M. G. McHarg
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 6 Pages: 1-16
  • DOI: 10.1029/2023ja032232
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• [Journal Article] Observation and Numerical Simulation of Cold Ions Energized by EMIC Waves (2024)
  • Author(s): Kim, K.-H., C.-W. Jun, J.-W. Kwon, J. Lee, K. Shiokawa, Y. Miyoshi, E.-H. Kim, K. Min, J. Seough, K. Asamura, I. Shinohara, A. Matsuoka, S. Yokota, Y. Kasahara, S. Kasahara, K. Keika, A. Kumamoto, and F. Tsuchiya,
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 5
  • DOI: 10.1029/2023ja032361
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• [Journal Article] Magnetic storm-time red aurora as seen from Hokkaido, Japan on December 1, 2 2023 associated with high-density solar wind (2024)
  • Author(s): Kataoka, R., Y. Miyoshi, K. Shiokawa, N. Nishitani, K. Keika, T. Amano, and K. Seki
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 12
  • DOI: 10.1029/2024gl108778
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• [Journal Article] Observational evidence for 1 three time-scale modulations in the pulsating aurora (2024)
  • Author(s): Chen, R., Y. Miyoshi, X. Gao, Q. Lu, B. Tsurutani, K. Hosokawa, H. Chen, T. Hori, Y. Ogawa, S. Oyama, Y. Kasahara, S. Matsuda, et al.
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 16
  • DOI: 10.1029/2024gl108253
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• [Journal Article] Simulation study of the impacts of E-region density on the growth of equatorial plasma bubbles (2024)
  • Author(s): Yokoyama Tatsuhiro
  • Journal Title: Frontiers in Astronomy and Space Sciences Volume: 11
  • DOI: 10.3389/fspas.2024.1502618
  • Peer Reviewed / Open Access
• [Journal Article] Cold Electron Temperature in the Inner Magnetosphere Estimated Through the Dispersion Relation of ECH Waves From the Arase Satellite Observations (2024)
  • Author(s): Taki Tomoe、Kurita Satoshi、Kojima Hirotsugu、Kasahara Yoshiya、Matsuda Shoya、Matsuoka Ayako、Kazama Yoichi、Jun Chae‐Woo、Wang Shiang‐Yu、Tam Sunny W. Y.、Chang Tzu‐Fang、Wang Bo‐Jhou、Miyoshi Yoshizumi、Shinohara Iku
  • Journal Title: Radio Science Volume: 59 Issue: 6 Pages: 1-10
  • DOI: 10.1029/2023rs007927
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• [Journal Article] Enhancing findability and searchability of research data: Metadata conversion and registration in institutional repositories (2024)
  • Author(s): Nose, M., A. Shinbori, Y. Miyoshi, T. Hori, T. Ohira, J. Hashiba, C. Naoe, R. Gakiya, M. Okamoto, T. Sagara, T. Aoki, S. Matsubara, I. Takahashi, et al.
  • Journal Title: Data Science Journal, Volume: 23
  • DOI: 10.5334/dsj-2024-040
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Variation of Molecular Ions in the Inner Magnetosphere Observed by the Arase Satellite (2024)
  • Author(s): Nagatani A.、Miyoshi Y.、Asamura K.、Kistler L. M.、Nakamura S.、Seki K.、Ogawa Y.、Shinohara I.
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 18
  • DOI: 10.1029/2024gl108340
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• [Journal Article] On the factors controlling the relationship between type of pulsating aurora and energy of pulsating auroral electrons: Simultaneous observations by Arase satellite, ground-based all-sky imagers and EISCAT radar (2024)
  • Author(s): Ito, Y., K. Hosokawa, Y. Ogawa, Y. Miyoshi, F. Tsuchiya, M. Fukizawa, Y. Kasaba, Y. Kazama, S. Oyama, K. Murase, S. Nakamura, et al.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 7
  • DOI: 10.1029/2024ja032617
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• [Journal Article] On the phase difference of ECH waves obtained from the interferometry observation by the Arase satellite (2024)
  • Author(s): Taki Tomoe、Kurita Satoshi、Shinjo Airi、Fukasawa Ibuki、Nakamura Satoko、Kojima Hirotsugu、Kasahara Yoshiya、Matsuda Shoya、Matsuoka Ayako、Miyoshi Yoshizumi、Shinohara Iku
  • Journal Title: Earth, Planets and Space Volume: 76 Issue: 1 Pages: 106-106
  • DOI: 10.1186/s40623-024-02043-2
  • Peer Reviewed / Open Access
• [Journal Article] X-raying neutral density disturbances in the mesosphere and lower thermosphere induced by the 2022 Hunga-Tonga volcano eruption-explosion (2024)
  • Author(s): Satoru Katsuda, Hiroyuki Shinagawa, Hitoshi Fujiwara, Hidekatsu Jin, Yasunobu Miyoshi, Yoshizumi Miyoshi, Yuko Motizuki, Motoki Nakajima, et al.
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 20 Pages: 1-9
  • DOI: 10.1029/2024gl112025
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• [Journal Article] ELFIN‐GPS Comparison of Energetic Electron Fluxes: Modeling Low‐Altitude Electron Flux Mapping to the Equatorial Magnetosphere (2024)
  • Author(s): Sun Weiqin、Zhang Xiao‐Jia、Artemyev Anton V.、Mourenas Didier、Morley Steven K.、Angelopoulos Vassilis、Kasahara S.、Miyoshi Y.、Matsuoka A.、Mitani T.、Yokota S.、Hori T.、Keika K.、Takashima T.、Teramoto M.、Shinohara I.、Yamamoto K.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 11
  • DOI: 10.1029/2024ja033155
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Variation of the Altitude of Auroral Emission During a Substorm Cycle: Stereoscopic Optical Observations During the LAMP Rocket Experiment (2024)
  • Author(s): Hosokawa K.、Miyoshi Y.、Mcharg M.、Ledvina V.、Hampton D.、Lessard M.、Shumko M.、Asamura K.、Sakanoi T.、Mitani T.、Namekawa T.、Nos? M.、Ogawa Y.、Jaynes A.、Halford A.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 11
  • DOI: 10.1029/2024ja033036
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Relativistic Electron Flux Decay and Recovery: Relative Roles of EMIC Waves, Chorus Waves, and Electron Injections (2024)
  • Author(s): Zhang Zijin、Artemyev Anton、Mourenas Didier、Angelopoulos Vassilis、Zhang Xiao‐Jia、Kasahara S.、Miyoshi Y.、Matsuoka A.、Kasahara Y.、Mitani T.、Yokota S.、Hori T.、Keika K.、Takashima T.、Teramoto M.、Matsuda S.、Shinohara I.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 12
  • DOI: 10.1029/2024ja033174
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• [Journal Article] A Multi‐Platform Statistical Analysis of the Azimuthal Spatial Extent of the Microburst Precipitation Region (2024)
  • Author(s): Elliott S. S.、Colpitts C.、Breneman A. W.、Pettit J. M.、Cantwell K. A.、Cattell C. A.、Halford A. J.、Shumko M.、Sample J.、Johnson A.、Miyoshi Y.、Kasahara Y.、Troyer R. N.、Millan R.、Hori T.、Shinohara I.、Matsuda S.、Matsuoka A.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 12
  • DOI: 10.1029/2024ja033208
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• [Journal Article] Mid-Latitude Auroras and Energetic Particle Precipitation Occurred Unusually in a Moderate Magnetic Storm on December 1, 2023 (2024)
  • Author(s): Ma, L., Y. Yu, X. Ding, X. Liu, D. An, C. Zhou, J. Cao, and K. Shiokawa
  • Journal Title: Geophys. Res. Lett. Volume: 51 Issue: 18
  • DOI: 10.1029/2024gl110764
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spatial Structures of Blue low-latitude aurora observed from Japan during the extreme geomagnetic storm of May 2024 (2024)
  • Author(s): Nanjo, S. and K. Shiokawa
  • Journal Title: Earth Planets and Space Volume: 76 Issue: 1
  • DOI: 10.1186/s40623-024-02090-9
  • Peer Reviewed / Open Access
• [Journal Article] Determination of electron heat flux in the topside ionosphere and its impact on the vertical profile of OI 630.0 nm emission rate during nighttime SAR arcs for different solar activity conditions (2024)
  • Author(s): Upadhyay, K., K. Shiokawa, D. Pallamraju, and A. Gololobov
  • Journal Title: Adv. Space Res. Volume: 75 Issue: 6 Pages: 4731-4739
  • DOI: 10.1016/j.asr.2024.12.046
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• [Journal Article] Book review: scientific debates in space science by W. D. Cummings and L. J. Lanzorotti (2024)
  • Author(s): Liu, H.
  • Journal Title: History of Geo- and Space Sciences Volume: 15 Issue: 2 Pages: 41-42
  • DOI: 10.5194/hgss-15-41-2024
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• [Journal Article] On the Inverse Correlation Between the Thermosphere Winter Helium Bulge and Solar Activity: Impact of Gravity Wave Drag From the Mesosphere (2024)
  • Author(s): Ren Dexin、Lei Jiuhou、Liu Han‐Li、Wang Wenbin、Yue Jia、Liu Huixin、Liu Yu
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 129 Issue: 11
  • DOI: 10.1029/2024ja033189
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Enhanced Sporadic E Layer and Its Perturbations During the 2022 Hunga Volcanic Eruption (2024)
  • Author(s): Qiu Lihui、Liu Huixin、Qi Yifan、Poblet Facundo L.
  • Journal Title: Space Weather Volume: 22 Issue: 7
  • DOI: 10.1029/2023sw003837
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• [Journal Article] Third‐Order Structure Functions of Zonal Winds in the Thermosphere Using CHAMP and GOCE Observations (2024)
  • Author(s): Poblet Facundo L.、Liu Huixin、Chau Jorge L.
  • Journal Title: Geophysical Research Letters Volume: 51 Issue: 11
  • DOI: 10.1029/2024gl108367
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• [Journal Article] Channel Mixer Layer: Multimodal Fusion Toward Machine Reasoning for Spatiotemporal Predictive Learning of Ionospheric Total Electron Content (2024)
  • Author(s): Liu, P., T. Yokoyama, T. Sori, and M. Yamamoto
  • Journal Title: Space Weather Volume: 22
  • Peer Reviewed / Open Access
• [Journal Article] Calibrating estimates of ionospheric long-term change (2024)
  • Author(s): Scott Christopher John、Wild Matthew N.、Barnard Luke Anthony、Yu Bingkun、Yokoyama Tatsuhiro、Lockwood Michael、Mitchel Cathryn、Coxon John、Kavanagh Andrew
  • Journal Title: Annales Geophysicae Volume: 42 Issue: 2 Pages: 395-418
  • DOI: 10.5194/angeo-42-395-2024
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• [Journal Article] Statistics of higher harmonics SRS at low latitude station, Shillong (2024)
  • Author(s): Adhitya, P., J. Bulusu, M. Nose, G. Vichare, and A. P. Dimri
  • Journal Title: Journal of Geophysical Research: Space Physics, Volume: 129 Issue: 12
  • DOI: 10.1029/2024ja033034
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• [Journal Article] Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in Japan (2024)
  • Author(s): Fu Weizheng、Otsuka Yuichi、Shinbori Atsuki、Nishioka Michi、Perwitasari Septi
  • Journal Title: Earth, Planets and Space Volume: 76 Issue: 1
  • DOI: 10.1186/s40623-023-01956-8
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• [Journal Article] Evaluation of the empirical scaling factor of Joule heating rates in TIE-GCM with EISCAT measurements. (2024)
  • Author(s): Florian Gunzkofer, Huixin Liu, Gunter Stober, Dimitry Pokhotelov, and Claudia Borries
  • Journal Title: Earth and Space Science Volume: 11 Issue: 4 Pages: 1-10
  • DOI: 10.1029/2023ea003447
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• [Journal Article] Westward Excursion of Pc1/EMIC Waves and Their Source Protons: Paradoxical Observations from Ground and Space (2024)
  • Author(s): Yin, Z., X. Zhou, Z. Hu, C. Yue, Q. Zong, Z. Liu, J. Liu, K. Shiokawa, S. Oyama and D. Baishev
  • Journal Title: Journal of Geophysical Research Volume: 129 Issue: 5
  • DOI: 10.1029/2023ja032317
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• [Journal Article] New observational projects in New Zealand for studying radiation belt loss processes in the deep inner magnetosphere: instrumentation, operation by solar power and initial results (2024)
  • Author(s): Obana, Y., K. Sakaguchi, M. Nose, K. Hosokawa, P. Jaquiery, S. Saita, K. Shiokawa, M. Connors, A. Kadokura, T. Nagatsuma, and Tanja Petersen
  • Journal Title: Earth, Planets and Space Volume: 76 Issue: 1 Pages: 1-18
  • DOI: 10.1186/s40623-024-01990-0
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• [Journal Article] Investigation of the Occurrence Characteristics and Possible Origins of Daytime Spread F Irregularities in Low Latitude Region (2024)
  • Author(s): Wei, L., C. Jiang, T. Yokoyama, J. Liu, G. Yang, and Y. Hu
  • Journal Title: J. Geophys. Res. Space Physics Volume: 129 Issue: 1
  • DOI: 10.1029/2023ja031809
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Geomagnetic activity dependence and dawn- dusk asymmetry of thermospheric winds from 9-year measurements with a Fabry-Perot interferometer in Tromsoe, Norway (2023)
  • Author(s): Oyama, S., A. Aikio, T. Sakanoi, K. Hosokawa, H. Vanhamaki, L. Cai, I. Virtanen, M. Pedersen, K. Shiokawa, A. Shinbori, N. Nishitani, and Y. Ogawa
  • Journal Title: Earth Planets Space Volume: 75 Issue: 1
  • DOI: 10.1186/s40623-023-01829-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] IMF dependence of midnight bifurcation in the thermospheric wind at an auroral latitude based on nine winter measurements in Tromsoe, Norway (2023)
  • Author(s): Oyama, S., K. Hosokawa, H. Vanhamaki, A. Aikio, T. Sakanoi, L. Cai, I. I. Virtanen, K. Shiokawa, N. Nishitani, A. Shinbori, and Y. Ogawa
  • Journal Title: Geophysical Research Letters Volume: 50 Issue: 14
  • DOI: 10.1029/2023gl104334
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• [Journal Article] Equinoctial asymmetry of plasma bubble occurrence and electric field at evening: GPS and ionosonde measurements in Southeast Asia (2023)
  • Author(s): Otsuka, Y., Abadi, P., Hozumi, K., and Almahi, A.
  • Journal Title: Journal of Atmospheric and Solar-Terrestrial Physics Volume: 252 Pages: 106136-106136
  • DOI: 10.1016/j.jastp.2023.106136
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-term studies of the summer wind in the mesosphere and lower thermosphere at middle and high latitudes over Europe (2023)
  • Author(s): Juliana Jaen, Toralf Renkwitz, Huixin Liu, Christoph Jacobi, Robin Wing, Ales Kuchar, Masaki Tsutsumi, Njal Gulbrandsen, and Jorge L. Chau
  • Journal Title: Atmospheric Chemistry and Physics Volume: 23 Issue: 23 Pages: 14871-14887
  • DOI: 10.5194/acp-23-14871-2023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Assessing the potential of ionosonde for forecasting post-sunset equatorial spread F: an observational experiment in Southeast Asia (2023)
  • Author(s): Prayitno Abadi, Umar Ali Ahmad, Yuichi Otsuka, Punyawi Jamjareegulgarn, Alif Almahi, Septi Perwitasari, Slamet Supriadi, Wendi Harjupa & Reza Rendian Septiawan
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1
  • DOI: 10.1186/s40623-023-01941-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Statistical Analysis of the Horizontal Phase Velocity Distribution of Atmospheric Gravity Waves and Medium-Scale Traveling Ionospheric Disturbances in Airglow Images over Darwin (12.4oS, 131.0oE) (2023)
  • Author(s): Tsuboi, T., K. Shiokawa, Y. Otsuka, H. Fujinami, T. Nakamura, and D. Neudegg
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 8
  • DOI: 10.1029/2022ja030769
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• [Journal Article] Geomagnetic effect of the atmospheric acoustic resonance excited by earthquakes and volcano eruptions (2023)
  • Author(s): Surkov V.V., V. A. Pilipenko, and K. Shiokawa
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 10
  • DOI: 10.1029/2023ja031872
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Correspondence of Pi2 pulsations, aurora luminosity, and plasma flux fluctuation near a substorm brightening aurora: Arase observations (2023)
  • Author(s): Chen, L., K. Shiokawa, Y. Miyoshi, S. Oyama, C-W. Jun, Y. Ogawa, K. Hosokawa, Y. Kazama, S. Y. Wang, S. W. Y. Tam, T. F. Chang, B. J. Wang, K. Asamura, S. Kasahara, S. Yokota, T. Hori, K. Keika, Y. Kasaba, A. Kumamoto, F. Tsuchiya, M. Shoji, Y. Kasahara, A. Matsuoka, I. Shinohara, S. Nakamura
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 10 Pages: 1-17
  • DOI: 10.1029/2023ja031648
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] On the Creation, Depletion, and End of Life of Polar Cap Patches (2023)
  • Author(s): Eriksen, N. K., D. A. Lorentzen, K. Oksavik, L. Baddeley, K. Hosokawa, K. Shiokawa, E. Bland, L. Paxton, Y. Zhang, K. McWilliams, T. Yeoman, and D. R. Themens
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 12
  • DOI: 10.1029/2023ja031739
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Statistical Analysis of the Horizontal Phase Velocity Distribution of Atmospheric Gravity Waves and Medium-Scale Traveling Ionospheric Disturbances in Airglow Images over Sata (31.0oN, 130.7oE) (2023)
  • Author(s): Tsuboi, T., K. Shiokawa, Y. Otsuka, H. Fujinami, and T. Nakamura
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 12
  • DOI: 10.1029/2023ja031600
  • Peer Reviewed / Open Access
• [Journal Article] Longitudinal development of cosmic noise absorption based on multipoint observations at subauroral latitudes during storm-time substorms on August 25-28, 2018 (2023)
  • Author(s): Kato, Y., K. Shiokawa, Y. Tanaka, M. Ozaki, A. Kadokura, S. Oyama, A. Oinats, M. Connors, and D. G. Baishev
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 1
  • DOI: 10.1029/2023ja031950
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Statistical analysis of low-latitude boundary of polar-type medium-scale travelling ionospheric disturbances observed by a 630-nm airglow imager at Nyrola, Finland (2023)
  • Author(s): Sato, M., K. Shiokawa, S. Oyama, Y. Otsuka, A. Shinbori, and A. Oksanen
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 4
  • DOI: 10.1029/2023ja032077
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The variable source of the plasma sheet during a geomagnetic storm (2023)
  • Author(s): Kistler, L. M., K. Asamura, S. Kasahara, Y. Miyoshi, C. G. Mouikis, K. Keika, S. M. Petrinec, M. L. Stevens, T. Hori, S. Yokota, and I. Shinohara
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 1-9
  • DOI: 10.1038/s41467-023-41735-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Modeling of Multi-Ion Plasma Bubbles in the Equatorial Ionosphere (2023)
  • Author(s): Jiang, C., L. Wei, T. Yokoyama, R. Tian, T. Liu, and G. Yang
  • Journal Title: J. Geophys. Res. Space Physics Volume: 128 Issue: 10
  • DOI: 10.1029/2023ja031753
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A three-dimensional stochastic structure model derived from high-resolution isolated equatorial plasma bubble simulations (2023)
  • Author(s): Rino, C., T. Yokoyama, and C. Carrano
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 64-64
  • DOI: 10.1186/s40623-023-01823-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nighttime Midlatitude E-F Coupling in Geomagnetic Conjugate Ionospheres: A Double Thin Shell Model and a Multi-Source Data Investigation (2023)
  • Author(s): Fu, W., T. Yokoyama, N. Ssessanga, G, Ma, and M. Yamamoto
  • Journal Title: J. Geophys. Res. Space Physics Volume: 123 Issue: 3
  • DOI: 10.1029/2022ja031074
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Radiation Analysis of LEO Mission in the South Atlantic Anomaly During Geomagnetic Storm (2023)
  • Author(s): K. M. Girgis, T. Hada, S. Matsukiyo and A. Yoshikawa
  • Journal Title: IEEE Journal of Radio Frequency Identification Volume: 6 Pages: 292-298
  • DOI: 10.1109/jrfid.2022.3163441
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Geomagnetic storm effects on the LEO proton flux during solar energetic particle events (2023)
  • Author(s): Girgis, K. M., Hada, T., Yoshikawa, A., Matsukiyo, S., Pierrard, V., and Samwel, S. W.
  • Journal Title: Space Weather Volume: 21 Issue: 12
  • DOI: 10.1029/2023sw003664
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Automatic detection of auroral Pc5 geomagnetic pulsation using machine learning approach guided with discrete wavelet transform (2023)
  • Author(s): Stephen Omondi, Akimasa Yoshikawa, Waheed K. Zahra, Ibrahim Fathy, Ayman Mahrous
  • Journal Title: Advances in Space Research Volume: 72 Issue: 3 Pages: 866-883
  • DOI: 10.1016/j.asr.2022.06.063
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simulation of dawn-to-dusk electric field in the Jovian inner magnetosphere via Region 2-like field-aligned current (2023)
  • Author(s): Nakamura, Y., Terada, K., Tao, C., Terada, N., Kasaba, Y., Leblanc, F., Yoshikawa A., et al.
  • Journal Title: Journal of Geophysical Research Volume: 128 Issue: 6
  • DOI: 10.1029/2022ja031248
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) (2025)
  • Author(s): Kazuo Shiokawa
  • Organizer: 3rd General Assembly of International Science Council
  • Int'l Joint Research
• [Presentation] Activities of the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) (2025)
  • Author(s): Kazuo Shiokawa
  • Organizer: International Space Weather Initiative annual meeting
  • Int'l Joint Research
• [Presentation] Activities of the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) (2025)
  • Author(s): Kazuo Shiokawa
  • Organizer: United Nations Committee on Peaceful Uses of Outer Space - Science and Technical Subcommittee
  • Int'l Joint Research
• [Presentation] EMIC wave activity associated with solar wind dynamic pressure variations: Modeling and Observations (2024)
  • Author(s): Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Vania Jordanova, Chae-Woo, Jun, Kazuo Shiokawa
  • Organizer: URSI AT-RASC 2024
  • Int'l Joint Research
• [Presentation] EMIC wave activity associated with solar wind dynamic pressure variations: Modeling and Observations (2024)
  • Author(s): Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Vania Jordanova, Chae-Woo Jun, Kazuo Shiokawa
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Observation and Numerical Simulation of Cold Ions Energized by EMIC Waves (2024)
  • Author(s): Khan-Hyuk Kim, Chae-Woo Jun, Jong-Woo Kwon, Junhyun Lee, Kazuo Shiokawa, Yoshizumi Miyoshi, Eun-Hwa Kim, Kyungguk Min, Jungjoon Seough, et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] OSIRIS-Rex サンプルリターンカプセルの再突入に伴う超低周波電波放射の観測 (2024)
  • Author(s): 渡邉 堯、小林美樹、加藤泰男、塩川和夫、大矢浩代、鈴木和博
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Precipitation of auroral electrons accelerated at very high altitudes (2024)
  • Author(s): Imajo, S., Y. Miyoshi, Y. Kazama, K. Asamura, I. Shinohara, K. Shiokawa, Y. Kasahara, Y. Kasaba, A. Matsuoka, S.-Y. Wang, S. W. Y. Tam, C.-W. Jun, et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research / Invited
• [Presentation] 国際研究集会と特集号の企画：名古屋大学宇宙地球環境研究所の取り組み例とEPS誌との連携 (2024)
  • Author(s): 塩川和夫
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research / Invited
• [Presentation] Study of the plasma dynamics in the inner magnetosphere using ground network, Arase satellite, and modeling based on the PWING project and the PBASE program (2024)
  • Author(s): 塩川和夫
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research / Invited
• [Presentation] X-ray study of the upper atmospheric density disturbance caused by the explosive eruption of the 2022 Tonga's volcano (2024)
  • Author(s): Katsuda, S., Y. Miyoshi, K. Shiokawa, et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Mid-latitude ionospheric and thermospheric responses to the strong substorm that occurred on October 24, 2003 (2024)
  • Author(s): 森田早紀、塩川和夫、大塚雄一、新堀淳樹、惣宇利卓弥、西岡未知、PERWITASARI SEPTI、山本衛
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Optimization of Fabry-Perot interferometer for auroral 427.8-nm emission: Observation in 2023-2024 at Skibotn, Norway (2024)
  • Author(s): 菊池大希、塩川和夫、大山伸一郎、小川泰信、栗原純一
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Statistical study of Arase plasma and field variations in the source region of substorm onset in the inner magnetosphere (2024)
  • Author(s): L. Chen, K. Shiokawa, Y. Miyoshi, S. Oyama, C-W. Jun, Y. Ogawa, K. Hosokawa, Y. Kazama, S. Y. Wang, S. W. Y. Tam, T. F. Chang, B. J. Wang, K. Asamura,et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Pc1 pulsations simultaneously observed at the latitudinal induction magnetometer network and by the Swarm satellites (2024)
  • Author(s): Masahito Nose, Kazuo Shiokawa, Yuichi Otsuka, Liejun Wang, Bill Jones, Andrew Lewis, Marck Daniel Santos, Patrick Joseph Robles, and Viacheslav A. Pilipenko
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Study of the airglow responses to geomagnetic storms based on long-term observations at three locations in Japan (2024)
  • Author(s): Yuto Hotta, Kazuo Shiokawa, Yuichi Otsuka
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Study of magnetospheric structures connected to the equatorward boundary of the oval using Arase and ground imagers (2024)
  • Author(s): Masaki Gomi, Kazuo Shiokawa, Yoshizumi Miyoshi, Yuichi Otsuka, Shin-ichiro Oyama, Atsuki Shinbori, Tomoaki Hori, Jun Chen-woo, Iku Shinohara, et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Largest thermospheric wind ever observed with a Fabry-Perot interferometer in Tromsoe, Norway since 2009 during the March 2023 storm (2024)
  • Author(s): Shin-ichiro Oyama, Heikki Vanhamaki, Lei Cai, Atsuki Shinbori, Keisuke Hosokawa, Takeshi Sakanoi, Kazuo Shiokawa, Anita Aikio, Ilkka Virtanen, et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Characteristics of ionospheric convection associated with low-latitude auroral emission during high geomagnetic activity (2024)
  • Author(s): Nishitani, N., T. Hori, K. Hosokawa, A. Shinbori, Y. Obana, M. Teramoto, K. Shiokawa, and R. Kataoka
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] 地球惑星科学国際連携分科会の活動 (2024)
  • Author(s): 中村卓司、三枝信子、塩川和夫、掛川武
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] Statistical study of high energy electron precipitation based on Arase satellite - EISCAT collaborative observation data (2024)
  • Author(s): Yasunobu Ogawa, Mizuki Fukizawa, Yoshizumi Miyoshi, Keisuke Hosokawa, Shin-ichiro Oyama, Kazuo Shiokawa, Kanako Seki, Satoshi Kurita, et al.et al.
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] A study of EMIC wave property change using Arase satellite and ground-based magnetometer data (2024)
  • Author(s): Jaeyoung Kwak, Junga Hwang, Yukinaga Miyashita, Madeeha Talha, Yoshizumi Miyoshi, Kazuo Shiokawa, Chae-Woo Jun
  • Organizer: Japan Geoscience Union Meeting 2024
  • Int'l Joint Research
• [Presentation] SuperDARN HOP radars observation of ionospheric convection associated with low-latitude auroras during recent major geomagnetic storms (2024)
  • Author(s): Nishitani, N., T. Hori, K. Hosokawa, A. Shinbori, Y. Obana, M. Teramoto, K. Shiokawa, and R. Kataoka
  • Organizer: SuperDARN Workshop
  • Int'l Joint Research
• [Presentation] Observing auroral 427.8-nm emission using a Fabry-Perot interferometer in Norway for measurement of N_2^+ upflow: Initial analysis (2024)
  • Author(s): Taiki Kikuchi, Kazuo Shiokawa, Shin-ichiro Oyama, Yasunobu Ogawa, Junichi Kurihara
  • Organizer: CEDAR Workshop
  • Int'l Joint Research
• [Presentation] Multi-event Sstudy of mid-latitude ionospheric responses to substorms using comprehensive ground observations and modeling (2024)
  • Author(s): Saki Morita, Kazuo Shiokawa, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari, Mamoru Yamamoto
  • Organizer: CEDAR Workshop
  • Int'l Joint Research
• [Presentation] Characteristics of field and plasma variations in the source region of substorm onset: Arase observation (2024)
  • Author(s): L. Chen, K. Shiokawa, Y. Miyoshi, S. Oyama, C-W. Jun, Y. Ogawa, K. Hosokawa, Y. Kazama, S. Y. Wang, S. W. Y. Tam, T. F. Chang, B. J. Wang, et al.
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] EMIC wave activity associated with solar wind dynamic pressure variations: Modeling and Observations (2024)
  • Author(s): Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Vania Jordanova, Chae-Woo Jun, Kazuo Shiokawa
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] Recent results on the equatorial and middle latitude thermosphere and ionosphere obtained from the Optical Mesosphere Thermosphere Imagers (OMTIs) in 2022-2024 (2024)
  • Author(s): Shiokawa, K., and Y. Otsuka
  • Organizer: COSPAR 2024
  • Int'l Joint Research / Invited
• [Presentation] Space Weather panel (2024)
  • Author(s): Shiokawa, K.
  • Organizer: COSPAR 2024
  • Int'l Joint Research / Invited
• [Presentation] Enhancements in the red and green line airglow emissions at sub-auroral latitudes within a few minutes after substorm onsets: Case studies (2024)
  • Author(s): R. Rathi, K. Shiokawa, M. Sivakandan, and Y. Otsuka
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] EFFECTS OF THE GEOMAGNETIC STORM OF APRIL 2023 ON THE THERMOSPHERE-IONOSPHERE SYSTEM OVER EQUATORIAL INDIAN REGION (2024)
  • Author(s): Lalitha G Krishnan, Kazuo Shiokawa, Tarun Kumar Pant, Gang Lu, Surendra Sunda
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] A study of energy transfer by EMIC propagation using Arase satellite and ground-based magnetometer data (2024)
  • Author(s): Jaeyoung Kwak, Junga Hwang, Yukinaga Miyashita, Madeeha Talha, Yoshizumi Miyoshi, Kazuo Shiokawa, Chae-woo Jun
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] INVESTIGATING EQUATORIAL PLASMA BUBBLE CHARACTERISTICS OVER SOUTH AMERICA USING ICON SATELLITE AND ALL-SKY IMAGER (2024)
  • Author(s): Moheb Yacoub, Kazuo Shiokawa, Moataz Abdelwahab, Ayman Mahrous
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] Understanding the generation of EMIC waves in the dayside magnetosphere in response to solar wind dynamic pressure variations : Modeling and Observations (2024)
  • Author(s): Shreedevi PR, Yoshizumi Miyoshi, Yiqun Yu, Vania Jordanova, Chae-Woo Jun, Kazuo Shiokawa
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] A STUDY OF EMIC WAVE FROM THE CREATION TO THE EXTINCTION THROUGH ARASE SATELLITE AND GROUND-BASED MAGNETOMETERS MULTI-OBSERVATION (2024)
  • Author(s): Jaeyoung Kwak, Junga Hwang, Yukinaga Miyashita, Madeeha Talha, Yoshizumi Miyoshi, Kazuo Shiokawa, Chae-Woo Jun
  • Organizer: COSPAR 2024
  • Int'l Joint Research
• [Presentation] STEVE-like emissions observed in the poleward part of the auroral oval after the magnetic midnight (2024)
  • Author(s): Nanjo, S., G. A. Hofstra, K. Shiokawa, A. Shinbori, S. Nozawa, and K. Hosokawa
  • Organizer: EISCAT Symposium 2024
  • Int'l Joint Research
• [Presentation] OSIRIS-RExサンプルリターンカプセルの再突入に伴う超低周波電波放射の観測 (2024)
  • Author(s): 渡邉堯、小林美樹、加藤泰男、塩川和夫、大矢浩代、鈴木和博
  • Organizer: 日本天文学会 2024年 秋季年会
• [Presentation] PWING/PBASEとIUGONETの関わりと現状 (2024)
  • Author(s): 日本天文学会 2024年 秋季年会
  • Organizer: 太陽地球環境データ解析に基づく超高層大気の空間・時間変動の解明
  • Invited
• [Presentation] First results from VLF-CHAMP: Analyzing Latitudinal Propagation and Characteristics of VLF Waves in Finland (2024)
  • Author(s): Claudia Martinez-Calderon, Jyrki Manninen, David Pisa, Ondrej Santolik, Miroslav Hanzelka, Frantisek Nemec, Yoshizumi Miyoshi, and Kazuo Shiokawa
  • Organizer: VERSIM 2024 workshop
  • Int'l Joint Research / Invited
• [Presentation] Low-latitude auroras and ionospheric convection during geomagnetic storms: SuperDARN observations (2024)
  • Author(s): Nishitani, N., T. Hori, K. Hosokawa, A. Shinbori, Y. Obana, M. Teramoto, K. Shiokawa, and R. Kataoka
  • Organizer: Space Climate 9 Symposium and ISEE Symposium
  • Int'l Joint Research
• [Presentation] Northwestward Extension of Total Electron Content Enhancement and Irregularities Over Japan During a Magnetic Storm on May 2024 (2024)
  • Author(s): Yuichi Otsuka, Kazuo Shiokawa, Atsuki Shibori, Mamoru Yamamoto, Tatsuhiro Yokoyama, Koji Nishimura, Michi Nishioka, and Septi Perwitasari
  • Organizer: International Symposium on the 40th Anniversary of the MU radar
  • Int'l Joint Research
• [Presentation] 2024年5月の磁気嵐時に日本から観測された青いオーロラ (2024)
  • Author(s): 南條壮汰，塩川和夫
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] 日本3地点及びTIMED衛星での長期観測に基づく中間圏・熱圏夜間大気光の磁気嵐に対する応答の研究 (2024)
  • Author(s): 堀田雄斗、塩川和夫、大塚雄一、Martin G Mlynczak
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] あらせ衛星と高感度地上カメラに基づくサブオーロラ帯に広がるディフューズ発光領域の磁気圏ソース領域 (2024)
  • Author(s): Masaki Gomi, Kazuo Shiokawa, Yoshizumi Miyoshi, Yuichi Otsuka, Shin-ichiro Oyama, Atsuki Shinbori, Tomoaki Hori, Jun Chen-woo, Iku Shinohara, et al.K
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] ファブリ・ペロー干渉計による波長427.8nmのオーロラを通したN2+アップフローの計測：測定誤差のモデル計算 (2024)
  • Author(s): 菊池大希、塩川和夫、大山伸一郎、小川泰信、栗原純一
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] 2003年10月24日の巨大サブストームに伴う中低緯度への電場侵入によって引き起こされた630-nm大気光同時増光のMAGEモデル解析 (2024)
  • Author(s): 森田早紀, 塩川和夫, 大塚雄一, 新堀淳樹, 西岡未知, Septi Perwitasari, 山本衛, 惣宇利卓弥, Kevin Pham
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] Does isotropic proton precipitation correspond to an isotropic distribution of magnetospheric protons? (2024)
  • Author(s): Shun Imajo, Yoshizumi Miyoshi, Satoshi Kasahara, Shoichiro Yokota, Ayako Matsuoka, Kunihiro Keika, Hori Tomoaki, Iku Shinohara, and Kazuo Shiokawa
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] 大気光イメージング観測による大気重力波構造を利用した新たな風速決定 (2024)
  • Author(s): 鈴木臣、塩川和夫
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] Multi-instrument observations of polar rain aurora (2024)
  • Author(s): Keisuke Hosokawa, Ryuho Kataoka, Daniel Whiter, Yasunobu Ogawa, Noora Partamies, Fred Sigernes, Takuo T. Tsuda, Satoshi Taguchi, and Kazuo Shiokawa
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] 2024年5月の磁気嵐中に日本で観測された全電子数増大及び電子密度擾乱 (2024)
  • Author(s): Yuichi Otsuka, Kazuo Shiokawa, Atsuki Shibori, Mamoru Yamamoto, Tatsuhiro Yokoyama, Koji Nishimura, Michi Nishioka, Septi Perwitasari
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] 第25 太陽活動周期の低緯度オーロラに関連して観測された電離圏対流の特性: SuperDARN HOP レーダー観測を中心として (2024)
  • Author(s): 西谷望, 堀智昭, 細川敬祐, 新堀淳樹, 尾花由紀, 寺本万里子, 塩川和夫, 片岡龍峰
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] REPイベント発生時のオーロラ観測と発光高度の推定 (2024)
  • Author(s): 柳澤球大朗, 片岡龍峰, 関華奈子, 三好由純, 塩川和夫, Martin Connors, 中平聡志, 鳥居祥二
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] Study on special types of electromagnetic ion cyclotron (EMIC) waves during the May 2024 geomagnetic storm observed by the Arase satellite and PWING ground-based observation network (2024)
  • Author(s): C.-W. Jun, Y. Miyoshi, T. Hori, K. Shiokawa, K.-H. Kim, J. Bortnik, L. Lyons, I. Shinohara, A. Matsuoka, Y. Kasahara, S. Matsuda, Y. Kasaba, M. Teramoto and K. Yamamoto
  • Organizer: 地球電磁気・地球惑星圏学会2024年秋季年会
• [Presentation] Characteristics of Pc1 Wave Ducted to Very Low Latitude (2024)
  • Author(s): P. Adhitya, Jayashree Bulusu, Geeta Vichare, Kazuo Shiokawa, Tero Raita
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Measurement of N_2^+ upflow through auroral 427.8-nm emission by a Fabry-Perot interferometer in Norway: Campaign observations and model calculations (2024)
  • Author(s): Taiki Kikuchi, Kazuo Shiokawa, Shin-ichiro Oyama, Yasunobu Ogawa, Junichi Kurihara
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Investigating polar Pi1B waves as a potential proxy for substorm onset (2024)
  • Author(s): Michelle Salzano, Kazuo Shiokawa, Shin-ichiro Oyama, M. Connors, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Ground observations and MAGE modeling of electric field penetration into mid-latitudes during a strong substorm on 24 October 2003 (2024)
  • Author(s): Saki Morita, Kazuo Shiokawa, Yuichi Otsuka, Nozomu Nishitani, Atsuki Shinbori, Akiko Fujimoto, Akimasa Yoshikawa, Michi Nishioka, Septi Perwitasari, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Wave properties change during EMIC and Pc1 wave propagation using Arase satellite and ground-based magnetometer data (2024)
  • Author(s): Jaeyoung Kwak, Chae-woo Jun, Yukinaga Miyashita, Jaeheung Park, Junga Hwang, Yoshizumi Miyoshi, Kazuo Shiokawa, Ayako Matsuoka, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Precipitation of auroral electrons accelerated at very high altitudes: Impact on the ionosphere and a possible acceleration mechanism (2024)
  • Author(s): Imajo, S., Y. Miyoshi, Y. Kazama, K. Asamura, I. Shinohara, K. Shiokawa, Y. Kasahara, Y. Kasaba, A. Matsuoka, S.-Y. Wang, S. W. Y. Tam, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Statistical study of electromagnetic field variations in the inner magnetosphere during substorms: Arase observation (2024)
  • Author(s): L. Chen, K. Shiokawa, Y. Miyoshi, S. Oyama, C-W. Jun, Y. Ogawa, K. Hosokawa, T. Hori, Y. Kasaba, A. Kumamoto, F. Tsuchiya, M. Shoji, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] Study on special types of EMIC waves during the May 2024 geomagnetic storm observed by the Arase satellite and PWING ground-based observation network (2024)
  • Author(s): C.-W. Jun, Y. Miyoshi, T. Hori, K. Shiokawa, K.-H. Kim, J. Bortnik, L. Lyons, I. Shinohara, A. Matsuoka, Y. Kasahara, S. Matsuda, and Y. Kasaba
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research
• [Presentation] The AfriTEC Model and other Space Weather Projects based on Artificial Intelligence and Machine Learning (2024)
  • Author(s): Daniel Okoh, John Bosco Habarulema, Babatunde Rabiu, Claudio Cesaroni, Gopi Seemala, Kazuo Shiokawa, Yuichi Otsuka, Bruno Nava, et al.
  • Organizer: AGU Fall Meeting 2024
  • Int'l Joint Research / Invited
• [Presentation] Mid-latitude Electric Field Response during Isolated Substorms: Effects of SCW Location and Shielding (2024)
  • Author(s): M Hayashi, A Yoshikawa, A Fujimoto
  • Organizer: EGU 2024
  • Int'l Joint Research
• [Presentation] Quantum Computing for Future Super Large-Scale Plasma Simulations: A Novel Approach for Simulating the Vlasov-Maxwell System (2024)
  • Author(s): H Higuchi, J Pedersen, A Yoshikawa
  • Organizer: EGU 2024
• [Presentation] A multi-disciplinary approach to investigate particle dynamics in the South Atlantic Magnetic Anomaly (2024)
  • Author(s): K Girgis, T Hada, A Yoshikawa, S Matsukiyo
  • Organizer: EGU 2024
• [Presentation] EMIC wave induced proton precipitation during the 27-28 May 2017 storm: Comparison of BATSRUS+RAM-SCB simulations with ground/space based observations (2023)
  • Author(s): Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji, Kazuo Shiokawa, Vania Jordanova, T. Hori, K.Asamura, I. Shinohara, S. Yokota, S. Kasahara, K.Keika, A. Matsuoka, Martin Connors, Akira Kadokura
  • Organizer: EGU 2023
• [Presentation] Development of Technique for Estimating Plasmaspheric Total Electron Content Variations from GPS Total Electron Content Data (2023)
  • Author(s): Yuichi Otsuka, Zhiyu Chen, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka
  • Organizer: IRI workshop
  • Int'l Joint Research / Invited
• [Presentation] Recent results of the ground-based multi-point network of the PWING project and the Optical Mesosphere Thermosphere Imagers and introduction of the new PBASE program (2023)
  • Author(s): Shiokawa, K., Y. Otsuka, and the PWING Team
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research / Invited
• [Presentation] Geomagnetic activity dependence and dawn-dusk asymmetry of thermospheric winds: statistical analysis of Fabry-Perot interferometer measurements in Tromsoe, Norway (2023)
  • Author(s): Shin-ichiro Oyama, Anita Aikio, Takeshi Sakanoi, Keisuke Hosokawa, Heikki Vanhamaki, Lei Cai, Virtanen I Ilkka, Marcus N Pedersen, Kazuo Shiokawa, Atsuki Shinbori, Nozomu Nishitani, Yasunobu Ogawa
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Horizontal inhomogeneity in the D-region ionosphere due to X-class solar flares by OCTAVE VLF/LF observations (2023)
  • Author(s): Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Spectroscopic measurement of ion upflow through Doppler shift of auroral 427.8-nm molecular nitrogen ion emission using a Fabry-Perot interferometer at Tromsoe, Norway: preliminary analysis (2023)
  • Author(s): Taiki Kikuchi, Kazuo Shiokawa, Shin-ichiro Oyama, Yasunobu Ogawa, Junichi Kurihara
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] On the EMIC wave activity in the inner magnetosphere associated with solar (2023)
  • Author(s): Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Xingbin Tian, Vania Jordanova, Chae-Woo Jun , Kazuo Shiokawa
  • Organizer: Japan Geoscience Union Meeting 2023
• [Presentation] Efforts of Nagoya University on archiving and publication of university academic data (2023)
  • Author(s): Miyoshi, Nose, Otsuka, Umeda, Masuda, Hori, Shinbori, Iijima, Jun, Matsumoto, Shiokawa, Hashiba ,Naoe, Matsubara, Aoki, Takahashi, Yamada, Hayashi, Suzuki
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Possible roles of magnetospheric density ducts in controlling the shape of pulsating aurora and the energy of precipitating electrons (2023)
  • Author(s): Ito, Y., K. Hosokawa, Y. Ogawa, Y. Miyoshi, F. Tsuchiya, M. Fukizawa, K. Murase, S. Oyama, S. Nakamura, Y. Kasahara, S. Matsuda, S. Kasahara, T. Hori, S. Yokota, K. Keita, I. Shinohara
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Japan's Activities for the EISCAT_3D Project (2023)
  • Author(s): Yasunobu Ogawa, Hiroshi Miyaoka, Satonori Nozawa, Taishi Hashimoto, Shin-ichiro Oyama, Koji Nishimura, Takuo T. Tsuda, Hitoshi Fujiwara, Masaki Tsutsumi, Yoshimasa Tanaka et al.
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Small-scale pulsating auroral distribution obtained with the auroral camera on the LAMP rocket (2023)
  • Author(s): Sakanoi, T., K. Asamura, Y. Miyoshi, K. Hosokawa, A. Halford, M. Lessard
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Low-energy energetic neutral atom analyzer (PEP/JNA) onboard the JUICE mission (2023)
  • Author(s): Asamura, K., M. Shimoyama, Y. Futaana, Y. Saito, Y. Miyoshi, T. Sakanoi, PEP team
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] LAMP Observation of Precipitating Electron Simultaneously Forming Microbursts and Pulsating Auroras (2023)
  • Author(s): Namekawa, T., T. Mitani, K. Asamura, Y. Miyoshi, K. Hosokawa, M. Lwssard, C. Moser, A. Halford, T. Sakanoi, M. Kawamura, M. Nose, R. Nomura, M. Teramoto, D. Hampton, M. Shumko, A. Jaynes, M. McHarg, V. Ledvina
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Field-aligned currents associated with pulsating auroral patches: Observation with Magneto-Impedance Magnetometer (MIM) onboard Loss through Auroral Microburst Pulsations (LAMP) sounding rocket (2023)
  • Author(s): Nose, M., K. Hosokawa, R. Nomura, M. Teramoto, K. Asamura, Y. Miyoshi, T. Mitani, T. Sakanoi, T. Namekawa, T. Kawano,
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] Relativistic electron microburst is a high-energy tail of pulsating aurora electrons: LAMP sounding rocket experiment and computer simulation (2023)
  • Author(s): Miyoshi, Y., K. Asamura, K. Hosokawa, T. Mitani, T. Namekawa, S. Saito, T. Sakanoi, M. Nose, K. Takahashi, Y. Obayashi, M. Lessard, A. Halford, M. Shumko, N. Paschalidis, M. McHarg, A. Jaynes, D. Hampton, V. Ledvina, K. Lynch, H. Kim
  • Organizer: Japan Geoscience Union Meeting 2023
  • Int'l Joint Research
• [Presentation] The Occurrence Characteristics of Daytime Spread F in the Low Latitude Regions During 2013-2020 Observed by Puer Ionosonde (2023)
  • Author(s): Lehui Wei, Chunhua Jiang, and Tatsuhiro Yokoyama
  • Organizer: Japan Geoscience Union Meeting 2023
• [Presentation] Three-dimensional Simulation of Equatorial Spread F: Effects of Field-aligned Plasma Flow and Ionospheric Conductivity (2023)
  • Author(s): Zezhong Li, Jiuhou Lei, Binzheng Zhang, and Tatsuhiro Yokoyama
  • Organizer: Japan Geoscience Union Meeting 2023
• [Presentation] Towards a closer cooperation between space and seismology communities (2023)
  • Author(s): Pilipenko, S. and K. Shiokawa
  • Organizer: 7th International Workshop on Earthquake Process
• [Presentation] Multi-event analysis of STEVE, SAR arc, and red/green arc at subauroral latitudes using ground optical and radio instruments and the Arase and Van Allen Probes satellites (2023)
  • Author(s): Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Martin Connors, Akira Kadokura, Alexey Poddelsky, Igor Poddelsky, Nozomu Nishitani et al.
  • Organizer: CEDAR 2023 Workshop
  • Int'l Joint Research
• [Presentation] High-energy particle precipitation associated with electromagnetic ion cyclotron waves and its consequences on the atmosphere (2023)
  • Author(s): Kazuo Shiokawa, M. Ozaki, Y. Miyoshi, and the PWING Team
  • Organizer: ICTP-SCOSTEP-ISWI Workshop on the Predictability of the Solar-Terrestrial Coupling - PRESTO
  • Int'l Joint Research
• [Presentation] Magnetosphere-ionosphere coupling (2023)
  • Author(s): Kazuo Shiokawa
  • Organizer: ICTP-SCOSTEP-ISWI Workshop on the Predictability of the Solar-Terrestrial Coupling - PRESTO
  • Int'l Joint Research / Invited
• [Presentation] Proton precipitation at sub-auroral latitudes and its association to EMIC waves: Global Modelling and Observations (2023)
  • Author(s): Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji, Kazuo Shiokawa, Vania Jordanova, T. Hori, K.Asamura, I. Shinohara, S. Yokota, S. Kasahara, K.Keika, A. Matsuoka , Martin Connors, Akira Kadokura
  • Organizer: IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Using multipoint observations to quantify microburst precipitation caused by whistler mode chorus waves (2023)
  • Author(s): S. S. Elliott, A. W. Breneman, C. Colpitts, J. M. Pettit, C. A. Cattell, A. J. Halford, M. Shumko, J. Sample, A. T. Johnson, Y. Miyoshi, Y. Kasahara, C. M. Cully, S. Nakamura, T. Mitani, T. Hori, I. Shinohara, K. Shiokawa, S. Matsuda, M. Connors, M. Ozaki, and J. Manninen
  • Organizer: IUGG General Assembly
  • Int'l Joint Research / Invited
• [Presentation] Application of magneto-impedance (MI) sensor to geomagnetic field measurements for magnetoseismology (2023)
  • Author(s): Nose, M., T. Maeda, H. Nomura, T. Adachi, Y. Yamamoto, A. Kumamoto, S. Ishida, T. Kawano, Y. Iwanaga, and S. Tatematsu
  • Organizer: IUGG General Assembly
  • Int'l Joint Research
• [Presentation] EMIC wave induced proton precipitation during the 27-28 May 2017 storm: Comparison of BATSRUS+RAM-SCB simulations with ground/space based observations (2023)
  • Author(s): Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji, Kazuo Shiokawa, Vania Jordanova, T. Hori, K.Asamura, I. Shinohara, S. Yokota, S. Kasahara, K.Keika, A. Matsuoka , Martin Connors, Akira Kadokura
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Localized mesospheric ozone destruction induced by magnetospheric EMIC waves (2023)
  • Author(s): Mitsunori Ozaki, Kazuo Shiokawa, Ryuho Kataoka, Martin Mlynczak, Larry Paxton, Martin Connors, Satoshi Yagitani, Yuichi Otsuka, Satoshi Nakahira, and Ian Mann
  • Organizer: URSI GASS
  • Int'l Joint Research / Invited
• [Presentation] Study of the propagation of different VLF emissions from multi-point observations in northern Finland (2023)
  • Author(s): Claudia Martinez-Calderon, Jyrki Manninen, Kazuo Shiokawa , Mitsunori Ozaki, Ondrej Santolik and Tauno Turunen
  • Organizer: URSI GASS
  • Int'l Joint Research / Invited
• [Presentation] Horizontal Inhomogeneity of Electron Density in the D-region Ionosphere During a X-class Solar Flare Using OCTAVE VLF/LF Observations (2023)
  • Author(s): Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Plasmaspheric Total Electron Content Variations obtained from GPS Total Electron Content Data (2023)
  • Author(s): Yuichi Otsuka, Zhiyu Chen, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka, Fuminori Tsuchiya, Atsushi Kumamoto, Yoshiya Kasahara, Yoshizumi Miyoshi, Masahiro Kitahara, Satoko Nakamura, Ayako Matsuoka, Iku Shinohara
  • Organizer: URSI GASS
  • Int'l Joint Research / Invited
• [Presentation] VLF bursty-patches observed at PWING stations (2023)
  • Author(s): Jyrki Manninen, Claudia Martinez-Calderon, Kazuo Shiokawa, and the PWING Team
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Maps of foF2 and hmF2 obtained from a high-latitude all-sky airglow imager (2023)
  • Author(s): Michael Negale, Vince Eccles, Jeffrey Holmes, and Kazuo Shiokawa
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Ring-shaped expanding pulsating aurora: simultaneous observations with Arase (2023)
  • Author(s): Hosokawa, K., S. Kurita, Y. Miyoshi, S.-I. Oyama, Y. Ogawa, M. Ozaki, Y. Kasahara, Y. Kasaba, S. Yagitani, S. Matsuda, F. Tsuchiya, A. Kumamoto, I. Shinohara and R. Fujii
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Factors controlling the shape and energy of pulsating aurora: Simultaneous observations by Arase satellite, ground-based all-sky imagers and EISCAT radar (2023)
  • Author(s): Ito, Y., K. Hosokawa, Y. Ogawa, Y. Miyoshi, M. Fukizawa, F. Tsuchiya, K. Murase, S.-I. Oyama, S. Nakamura, Y. Kasahara, S. Matsuda, S. Kasahara, T. Hori, S. Yokota, K. Keika, I. Shinohara
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Incoherent Scatter Observations by the MU Radar over Japan: Potential Contribution to the IRI Model (2023)
  • Author(s): Yokoyama, T., M. Yamamoto, and Y. Otsuka
  • Organizer: URSI GASS
  • Int'l Joint Research / Invited
• [Presentation] Multi-Scale Simulation of Equatorial Plasma Bubbles with GAIA Model (2023)
  • Author(s): Yokoyama, T., H. Jin, and H. Shinagawa
  • Organizer: URSI GASS
  • Int'l Joint Research / Invited
• [Presentation] Spatiotemporal Sequence Prediction of Global Ionospheric Total Electron Content Map Based on Deep Learning Recurrent Neural Network (2023)
  • Author(s): Liu, P., T. Yokoyama, and M. Yamamoto
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Quantum numerical computation of the classical kinetic equation by quantum computer: new method for the Boltzmann equation in 6D collisionless plasma (2023)
  • Author(s): Higuchi, H, J. W. Pedersen and A. Yoshikawa
  • Organizer: URSI GASS
  • Int'l Joint Research
• [Presentation] Center for Heliospheric Science : a core center to promote heliospheric system science (2023)
  • Author(s): Yoshizumi Miyoshi, Iku Shinohara, Go Murakami, Shinsuke Imada et al.
  • Organizer: Hinode-16/IRIS-13 meeting
  • Int'l Joint Research / Invited
• [Presentation] Activities of the Hinode and SOLAR-C Science Center at ISEE in Nagoya University (2023)
  • Author(s): S. Masuda, Y. Miyoshi, T. Matsumoto, T. Hori, S. Nakamura, C.-W. Jun, A. Shinbori, T. Sori, H. Iijima, K. Iwai, T. Segawa, K. Kusano, K. Shiokawa, T. Shimizu, S. Toriumi, I. Shinohara, G. Murakami, K. Asamura, S. Imada, H. Hara, Y. Katsukawa, M. Kubo, D. Shiota, and K. Watanabe
  • Organizer: Hinode-16/IRIS-13 meeting
  • Int'l Joint Research
• [Presentation] Plasma and Field Variations in the Source Region of Substorm Auroral Brightening in the Inner Magnetosphere: Arase observations for three conjugate Events (2023)
  • Author(s): L. Chen, K. Shiokawa, Y. Miyoshi, S. Oyama, C-W. Jun, Y. Ogawa, K. Hosokawa, Y. Kazama, S. Y. Wang, S. W. Y. Tam, T. F. Chang, B. J. Wang, K. Asamura, S. Kasahara, S. Yokota, T. Hori, K. Keika, Y. Kasaba, A. Kumamoto, F. Tsuchiya, M. Shoji, Y. Kasahara, A. Matsuoka, I. Shinohara, S. Nakamura
  • Organizer: 15th International Conference on Substorms
  • Int'l Joint Research
• [Presentation] Substorm onset: An east-west aligned instability from spreading of flow channels driven by meso-scale polar cap flows (2023)
  • Author(s): Larry R. Lyons, Yukitoshi Nishimura, Jiang Liu, Ying Zou, William A. Bristow, Sneha Yadav, Eric Donovan, Nozomu Nishitani, Kazuo Shiokawa, Keisuke Hosokawa
  • Organizer: 15th International Conference on Substorms
  • Int'l Joint Research
• [Presentation] On the electron acceleration process as a carrier of field-aligned current and its energy conversion process in the Alfven wavefront (2023)
  • Author(s): Yoshikawa A.
  • Organizer: AGU Chapman Conference on Advances in Understanding Alfven Waves in the Sun and the Heliosphere
  • Int'l Joint Research
• [Presentation] Evolution of M-I convection depending on the Alfven conductance as simulated by global MHD model with Alfvenic coupling (2023)
  • Author(s): Aoi Nakamizo, Akimasa Yoshikawa, Hiroyuki Nakata, Keiichiro Fukazawa,Takashi Tanaka
  • Organizer: AGU Chapman Conference on Advances in Understanding Alfven Waves in the Sun and the Heliosphere
  • Int'l Joint Research / Invited
• [Presentation] Latitudinal propagation of VLF emissions from multi-point observations in Finland: First results from the Oulujarvi ground station (2023)
  • Author(s): C. Martinez-Calderon, J. Manninen, K. Shiokawa, M. Ozaki, V. Vuolteenaho, and David Pisa
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] EMIC wave activity in the inner magnetosphere associated with solar wind dynamic pressure variations: Global modeling and observations (2023)
  • Author(s): Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Vania Jordanova, Xingbin Tian, Chae-Woo Jun, Kazuo Shiokawa, Masafumi Shoji, Satoko Nakamura
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Mesoscale polar cap flow channels: Initial evaluation of long duration Propagation and effects on space weather disturbances (2023)
  • Author(s): Larry R. Lyons, Yukitoshi Nishimura, Jiang Liu, Ying Zou, William A. Bristow, Sneha Yadav, Eric Donovan, Nozomu Nishitani, Kazuo Shiokawa, Keisuke Hosokawa
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Statistical study of magnetospheric states for the overlap region between plasmasphere and ring-current ions using the Van Allen Probes satellites (2023)
  • Author(s): Rei Sugimura, Kazuo Shiokawa, Charles Smith, Robert MacDowall, Harlan Spence, Geoff Reeves, Herbert O. Funsten
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] IMF dependence of the midnight thermospheric wind at an auroral latitude based on 9 winter measurements in Tromsoe, Norway (2023)
  • Author(s): S. Oyama, K. Hosokawa, H. Vanhamaki, A. Aikio, T. Sakanoi, L. Cai, I. I. Virtanen, K. Shiokawa, N. Nishitani, A. Shinbori, and Y. Ogawa
  • Organizer: ,AGU Fall Meeting 2023
• [Presentation] First observation of temporal variation of STEVE heights by triangulation using two all-sky cameras at Athabasca, Canada (2023)
  • Author(s): L. Chen, K. Shiokawa, Y. Kato, T. Tsuboi, and M. Connors
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Utilizing maps of foF2 and hmF2 obtained from a high-latitude all-sky airglow imager in a data assimilative model (2023)
  • Author(s): Michael Negale, Vince Eccles, Jeffrey Holmes, Keisuke Hosokawa, and Kazuo Shiokawa
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Possible Influence of Ducted Chorus Wave Propagation on the Characteristics of the Pulsating Auroral Shape and the Energy of Electron Precipitation (2023)
  • Author(s): Ito, Y., K. Hosokawa, Y. Ogawa, Y. Miyoshi, F. Tsuchiya, M. Fukizawa, K. Murase, S. Oyama, S. Nakamura, Y. Kasahara, S. Matsuda, Y. Kasaba, S. Kasahara, T. Hori, S. Yokota, K. Keika, A. Matsuoka, M. Teramoto, I. Shinohara
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Quantum Calculation for Kinetic Multi-scale Auroral Mechanism: A Novel Approach to Numerical Analysis from Kinetic Alfvテゥn Wave Scales to MHD Scales, (2023)
  • Author(s): Higuchi, H, J. W. Pedersen and A. Yoshikawa
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Investigating the mechanism of electric field penetration during isolated substorms using a ground-based multi-point magnetic and electric field network (2023)
  • Author(s): Hayashi, M., A. Yoshikawa, A. Fujimoto, S. Ohtani
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Quasi-6-Day Wave Variation on the Inter-Hemispheric Field-Aligned Currents (IHFACs) (2023)
  • Author(s): Takayama Kumi, Yoshikawa Akimasa, and Miyoshi Yasunobu
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Development of Affine Connection for Describing Spatiotemporal Evolving 3D Magnetic Vector Fields and its Applications (2023)
  • Author(s): Yoshikawa A.
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Generation of Kinetic Alfven Waves in Earth's Magnetotail: A Theoretical Study (2023)
  • Author(s): A Yoshikawa, KC Barik, S Singh, GS Lakhina
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] Severe Erosion of the Plasmasphere and the Ring Current Particle Injections Deep into the Inner Magnetosphere during the September 2017 Storm (2023)
  • Author(s): Yuki Obana, Akimasa Yoshikawa, Moe Hayashi, Naomi Maruyama, et al.
  • Organizer: AGU Fall Meeting 2023
  • Int'l Joint Research
• [Presentation] A Review of Ionospheric Plasma: Measurements and Disturbances (2023)
  • Author(s): Kazuo Shiokawa
  • Organizer: INTERNATIONAL COLLOQUIUM ON EQUATORIAL AND LOW LATITUDE IONOSPHERE
  • Int'l Joint Research / Invited
• [Presentation] Ionosphereic Plasma (2023)
  • Author(s): Kazuo Shiokawa
  • Organizer: 3rd Iberian Space Science Summer School
  • Int'l Joint Research / Invited
• [Presentation] Localized mesospheric ozone destruction below isolated proton aurora at subauroral latitudes (2023)
  • Author(s): Mitsunori Ozaki, Kazuo Shiokawa, Ryuho Kataoka, Martin Mlynczak, Larry Paxton, Martin Connors, Satoshi Yagitani, Yuichi Otsuka, Satoshi Nakahira, and Ian Mann
  • Organizer: 14th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] IMF dependence of the midnight thermospheric wind at an auroral latitude based on 9 winter measurements in Tromsoe, Norway (2023)
  • Author(s): S. Oyama, K. Hosokawa, H. Vanhamaki, A. Aikio, T. Sakanoi, L. Cai, I. I. Virtanen, K. Shiokawa, N. Nishitani, A. Shinbori, and Y. Ogawa
  • Organizer: 14th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Solar and Geomagnetic Activity Dependence of 150-km Echoes Observed by the Equatorial Atmosphere Radar in Indonesia (2023)
  • Author(s): Yokoyama, T., R. Takagi, and M. Yamamoto
  • Organizer: AOGS 20th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Automatic scaling of foF2 and foEs from ionograms obtained at Shigaraki MU Observatory (2023)
  • Author(s): Yokoyama, T., Y. Uneyama, P. Liu, and M. Yamamoto
  • Organizer: AOGS 20th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Statistical Study of Mid- and Low-latitude Electric Field Response Corresponding to the CW Structure That Develops During Substorms (2023)
  • Author(s): Hayashi, M., A. Yoshikawa, A. Fujimoto, S. Ohtani
  • Organizer: AOGS 2023
  • Int'l Joint Research
• [Presentation] Clarification of Atmospheric Tidal Modes Appearing in Ionospheric Currents by Independent Component Analysis (2023)
  • Author(s): Takayama Kumi, Yoshikawa Akimasa, and Miyoshi Yasunobu
  • Organizer: AOGS 2023
  • Int'l Joint Research
• [Presentation] Mid-latitude Ground Magnetic and Electric Field Responses Associated with SCW Development during Substorms (2023)
  • Author(s): Hayashi, M., A. Yoshikawa, A. Fujimoto, S. Ohtani
  • Organizer: ICONSPACE 2023
  • Int'l Joint Research / Invited
• [Presentation] Analysis of substorms using ground-based magnetic and electric field network: results and challenges for space weather forecasting (2023)
  • Author(s): Hayashi, M., A. Yoshikawa, A. Fujimoto, S. Ohtani
  • Organizer: AOSWA 2023
  • Int'l Joint Research
• [Presentation] Large-scale research project in Japan, "Study of coupling processes in the Solar-Terrestrial system" (2023)
  • Author(s): A. Yoshikawa, M. Yamamoto, Y. Ogawa, K. Shiokawa, K. Iwai, H. Hashiguchi, T. Yokoyama, S. Nozawa, Y. Ohtsuka, A. Shinbori, Y. Tanaka, S. Abe
  • Organizer: AOSWA 2023
  • Int'l Joint Research
• [Presentation] A Novel Application of Nonlinear PDEs Quantum Algorithms: Toward Large-Scale Space Plasma Simulations (2023)
  • Author(s): Higuchi, H, J. W. Pedersen and A. Yoshikawa
  • Organizer: 10th International Workshop of Quantum Simulation and Quantum Walks
  • Int'l Joint Research
• [Presentation] 連携地上観測のまとめと展望・新たに開始したPBASEプログラムとの連携 (2023)
  • Author(s): 塩川和夫
  • Organizer: 第18回 ERGサイエンス会議
• [Presentation] Possibility of collaborations between GDC and Japanese ground-based network observations (2023)
  • Author(s): Otsuka, Y., Y. Ogawa, K. Shiokawa, Y. Miyoshi
  • Organizer: Symposium on the Future of Heliospheric Science: From Geotail and Beyond
  • Int'l Joint Research / Invited
• [Book] 宇宙天気ってなんだ!? (2023)
  • Author(s): はやのん＋理系漫画製作室、塩川和夫、三好由純、片岡龍峰
  • Total Pages: 14
  • Publisher: 名古屋大学宇宙地球環境研究所
• [Remarks] PBASE program
  • URL: https://www.isee.nagoya-u.ac.jp/dimr/PBASE/
• [Remarks] PBASEプログラム
  • URL: https://www.isee.nagoya-u.ac.jp/dimr/PBASE/