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)
• Project Period (FY): 2022-12-20 – 2029-03-31
• Project Status: Granted (Fiscal Year 2023)
• 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、米国Kistler教授らとの共同研究として、あらせ衛星、米国および欧州の科学衛星による観測結果から、宇宙嵐を引き起こしているのは、従来原因と考えられてきた太陽起源のプラズマよりも、地球起源のプラズマが主要因であることを発見した。また、極域のリオメータ多点観測網のデータから、磁気嵐時にジオスペースから高エネルギー粒子の大気への降込みが経度方向に拡がる様子を明らかにした。
・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、大学院生12件の海外派遣・招聘、大学院生・学部生の8件の海外フィールド観測派遣、8件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、5月にイタリアのトリエステで国際スクールを開催した。また、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SCOSTEPのWebで公開するとともに、SCOSTEPと連携して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、研究アシスタントとして博士後期学生3名とポスドク研究員2名を雇用している。このうち1名の研究員は、2023年度にテニュア承継職員に採用され、本事業の研究分担者となった。また、2023年度は、研究者７件、大学院生12件の海外派遣・招聘、大学院生・学部生の8件の海外フィールド観測派遣、8件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、5月にイタリアのトリエステで国際スクールを開催した。また、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。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]
• [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] 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
  • 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] 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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
  • Peer Reviewed / Open Access
• [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: ツ?Journal of Geophysical Research Volume: 129 Issue: 6 Pages: 1-16
  • DOI: 10.1029/2023ja032232
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Direct evidence of drift-compressional wave generation in the Earth's magnetosphere detected by Arase (2024)
  • Author(s): Yamamoto, K. A. V. Rubtsov, D. V. Kostarev, P. N. Mager, D. Y. Klimushkin, M. Nose, A. Matsuoka, K. Asamura, Y. Miyoshi, S. Yokota, S. Kasahara, T. Hori, K. Keika, Y. Kasahara, A. Kumamoto, F. Tsuchiya, M. Shoji, S. Nakamura, and I. Shinohara
  • 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] 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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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 / Open Access / 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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
  • Peer Reviewed / Open Access / Int'l Joint Research
• [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
  • 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 / Open Access / 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] 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/