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Study of latitudinal coupling of upper atmospheric variations based on multi-point ground network observations

Research Project

Project/Area Number 21H04518
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 17:Earth and planetary science and related fields
Research InstitutionNagoya University

Principal Investigator

塩川 和夫  名古屋大学, 宇宙地球環境研究所, 教授 (80226092)

Co-Investigator(Kenkyū-buntansha) 西谷 望  名古屋大学, 宇宙地球環境研究所, 准教授 (10218159)
大山 伸一郎  名古屋大学, 宇宙地球環境研究所, 講師 (20444424)
横山 竜宏  京都大学, 生存圏研究所, 准教授 (30397525)
大塚 雄一  名古屋大学, 宇宙地球環境研究所, 准教授 (40314025)
藤本 晶子  九州工業大学, 大学院情報工学研究院, 准教授 (40578803)
野澤 悟徳  名古屋大学, 宇宙地球環境研究所, 准教授 (60212130)
吉川 顕正  九州大学, 理学研究院, 教授 (70284479)
能勢 正仁  名古屋市立大学, データサイエンス学部, 教授 (90333559)
Project Period (FY) 2021-04-05 – 2026-03-31
Project Status Granted (Fiscal Year 2024)
Budget Amount *help
¥41,860,000 (Direct Cost: ¥32,200,000、Indirect Cost: ¥9,660,000)
Fiscal Year 2025: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2024: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2023: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2022: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2021: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Keywords超高層大気 / 緯度間結合 / 夜間大気光 / 電離圏 / 地上ネットワーク観測 / 宇宙科学 / 地球科学 / オーロラ
Outline of Research at the Start

地球周辺の宇宙空間のプラズマは磁力線に沿って地球の極域に流れ込み、オーロラに代表される極域の超高層大気の擾乱を引き起こし、さらに中緯度から赤道域に広がっていく。本研究では、既存のアジア域の地上観測ネットワークに加えて、北欧からアフリカ赤道域に至る緯度方向に、夜間大気光を撮像する高感度全天カメラによる地上観測ネットワークを新たに構築し、極域から赤道への超高層大気変動の伝搬過程を2つの経度で同時に測定する。これに人工衛星による観測やモデリングを組み合わせ、極域から赤道域への超高層大気・電磁場変動の発生・伝搬メカニズムとその経度・地方時による拡がりや違いを明らかにする。

Outline of Annual Research Achievements

・名古屋大学で受光部を交換修理して感度校正した高感度全天カメラ1式について、令和5年9月にドイツ南部のZugspitze観測点へ設置して自動定常観測を開始した。エチオピアは引き続き現地の内戦のために大学が入構禁止になっており設置ができていない。ZWO社の小型CMOSカメラ3台について、エジプトのアレキサンドリアにあるE-JUST大学で試験観測を行い、大気重力波の観測ができることを確認した。引き続き自動定常観測のためのシステム構築を現地で行っている。
・既存のカナダ、北欧、アイスランド、アラスカ、日本、インドネシア、タイ、オーストラリア、ナイジェリアなどの観測点における光学・電磁場計測器による観測、北海道陸別のSuperDARNレーダー、ノルウェーのナトリウムライダーの計測を維持・継続した。これらの観測データとGNSS衛星電波受信器網のデータのデータベース化を行った。
・これらの観測から、オーストラリアのダーウィンと鹿児島県の佐多岬での中間圏大気重力波や中規模伝搬性電離圏擾乱(MSTID)の10年以上の長期変動の特性を明らかにした。また、フィンランドの観測から、高緯度MSTIDには明確な低緯度側境界があることを見出し、中緯度MSTIDとの違いを明らかにした。さらにサブオーロラ帯の高エネルギー粒子降込みによる銀河電波吸収が、磁気嵐中のサブストームで経度方向に拡がる様子を明らかにするなど、数多くの研究成果が得られている。これらの研究成果は、国内外の学会・研究会で紹介され、論文として公表された。

Current Status of Research Progress
Current Status of Research Progress

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

Reason

ウクライナ危機や現地の事情により、一部の観測が実施できていないが、既存のカナダ、北欧、アイスランド、アラスカ、日本、インドネシア、タイ、オーストラリア、ナイジェリアなどの観測点における光学・電磁場計測器による観測、北海道陸別のSuperDARNレーダーなどの計測を維持・継続できている。また、ノルウェーのナトリウムライダーも引き続き令和5年度も観測を継続している。これらの観測データとGNSS衛星電波受信器網のデータのデータベース化を行った。また、また、小型カメラを開発し、上記のようにいくつかの海外観測点に送付を開始できている。さらにこれらの地上観測データをあらせ衛星などの衛星データやモデリングと比較した解析を実施し、得られた成果を国内外の学会・研究会や論文で紹介・発表している。

Strategy for Future Research Activity

令和6年度には、小型カメラを中心とした自動定常観測を新たにエチオピアやエジプトで立ち上げていく。また、既存のカナダ、北欧、アイスランド、アラスカ、日本、インドネシア、タイ、オーストラリア、ナイジェリアなどの観測点における光学・電磁場計測器による観測、北海道陸別のSuperDARNレーダー、ノルウェーのナトリウムライダー等の地上観測を維持・継続する。前年度に引き続き、これらの新しい観測データや、GNSS衛星電波受信器網のデータのデータベース化を行う。さらに、これらの地上観測データをあらせ衛星などの衛星データやモデリングと比較した解析を実施し、研究成果を上げていく。得られた成果は国内外の学会・研究会や国際誌に論文として紹介・発表し、さらに共同研究を発展させる。

Report

(4 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (325 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (17 results) Journal Article (63 results) (of which Int'l Joint Research: 55 results,  Peer Reviewed: 63 results,  Open Access: 60 results) Presentation (240 results) (of which Int'l Joint Research: 170 results,  Invited: 26 results) Remarks (5 results)

  • [Int'l Joint Research] EISCAT科学協会/オスロ大学/UiT ノルウェー北極大学(ノルウェー)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 国立研究革新庁(BRIN)(インドネシア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ドイツ航空宇宙センター (DLR)(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] バヒルダール大学(エチオピア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 国立宇宙研究開発機関(NASRDA)(ナイジェリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] EISCAT科学協会/オスロ大学/UiT ノルウェー北極大学(ノルウェー)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 国立研究革新庁(BRIN)(インドネシア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ドイツ航空宇宙センター (DLR)(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] バヒルダール大学(エチオピア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 国立宇宙研究開発機関(NASRDA)(ナイジェリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] EISCAT科学協会/オスロ大学/トロムソ大学(ノルウェー)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 国立研究革新庁(BRIN)(インドネシア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ドイツ航空宇宙センター (DLR)(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] バヒルダール大学(エチオピア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 国立宇宙研究開発機関(NASRDA)(ナイジェリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2021 Annual Research Report
  • [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

    • Related Report
      2023 Annual Research Report
    • 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 Space2024

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Post-midnight purple arc and patches appeared on the high latitude part of the auroral oval: Dawnside counterpart of STEVE?2024

    • Author(s)
      Sota Nanjo、Gabriel Arne Hofstra、Kazuo Shiokawa、Atsuki Shinbori、Satonori Nozawa、Keisuke Hosokawa
    • Journal Title

      Earth, Planets and Space

      Volume: 76 Issue: 1

    • DOI

      10.1186/s40623-024-01995-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Field-aligned currents associated with pulsating auroral patches: Observation with Magneto-Impedance Magnetometer (MIM) onboard Loss through Auroral Microburst Pulsations (LAMP) sounding rocket2024

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct evidence of drift-compressional wave generation in the Earth's magnetosphere detected by Arase2024

    • 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

    • Related Report
      2023 Annual Research Report
    • 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 results2024

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of low-cost magnetometer using magneto-impedance sensors: Deployment of dense observation network to Kanto-Tohoku-Hokkaido regions2024

    • Author(s)
      前田大輝,能勢正仁,野村太志,足立匠,山本優佳,熊本篤志,石田祐宣,市原寛,河野剛健,岩永吉広,立松峻一,浅利晴紀,平原秀行,海東恵美,長町信吾,渡邊修,山内大輔
    • Journal Title

      宇宙科学情報解析論文誌

      Volume: JAXA-RR-23-007 Pages: 71-82

    • URL

      https://jaxa.repo.nii.ac.jp/records/2000302

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the Occurrence Characteristics and Possible Origins of Daytime Spread F Irregularities in Low Latitude Region2024

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A penalized motion detection model for extracting ionospheric echoes from low signal-to-noise ratio Ionogram video images2024

    • Author(s)
      Hiroshige, Y., Fujimoto, A., Ikeda, A., Abe, S., Yoshikawa, A.
    • Journal Title

      Proceedings of International Conference on Artificial Life and Robotics

      Volume: - Pages: 1025-1031

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistical Analysis of Global and Regional Ionospheric Total Electron Content (TEC) Using Extreme Value Distributions2024

    • Author(s)
      Emmela Suneetha、Ratnam D. Venkata、Otsuka Yuichi、Shinbori Atsuki、Sori Takuya、Nishioka Michi、Perwitasari Septi
    • Journal Title

      IEEE Transactions on Geoscience and Remote Sensing

      Volume: 62 Pages: 1-8

    • DOI

      10.1109/tgrs.2023.3338513

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / 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 Japan2024

    • 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

    • Related Report
      2023 Annual Research Report
    • 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, Norway2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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, Norway2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Creation, Depletion, and End of Life of Polar Cap Patches2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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

    • Related Report
      2023 Annual Research Report
    • 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, 20182023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multi-event conjugate measurements of the SAR arc detachment from the auroral oval using DMSP satellites and an all-sky camera at Athabasca, Canada2023

    • Author(s)
      Gololobov, A., K. Shiokawa, D. Baishev, Y. Inaba, Y. Otsuka and M. Connors
    • Journal Title

      Journal of Geophysical Research

      Volume: 128 Issue: 4

    • DOI

      10.1029/2022ja030544

    • Related Report
      2023 Annual Research Report 2021 Annual Research Report
    • 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, Finland2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modeling of Multi-Ion Plasma Bubbles in the Equatorial Ionosphere2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A three-dimensional stochastic structure model derived from high-resolution isolated equatorial plasma bubble simulations2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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 Investigation2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Radiation Analysis of LEO Mission in the South Atlantic Anomaly During Geomagnetic Storm2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Geomagnetic storm effects on the LEO proton flux during solar energetic particle events2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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 transform2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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 current2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Examining Solar Flare Effects on Earth's Ionosphere Using Ground-Based Measurements2023

    • Author(s)
      Abdul Hamid Nurul Shazana、Raja Halim Raja Adibah、Sarudin Idahwati、Yoshikawa Akimasa、Fujimoto Akiko
    • Journal Title

      Sains Malaysiana

      Volume: 52(8) Issue: 8 Pages: 2309-2322

    • DOI

      10.17576/jsm-2023-5208-11

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Responses of the African-European equatorial-, low-, mid-, and high-latitude ionosphere to geomagnetic storms of 2013, 2015 St Patrick’s Days, 1 June 2013, and 7 October 20152023

    • Author(s)
      Akala A.O.、Afolabi R.O.、Otsuka Y.
    • Journal Title

      Advances in Space Research

      Volume: 72 Issue: 3 Pages: 775-789

    • DOI

      10.1016/j.asr.2022.10.029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of equatorial plasma bubble after the 2022 Tonga volcanic eruption2023

    • Author(s)
      A. Shinbori, T. Sori, Y. Otsuka, M. Nishioka, S. Perwitasari, T. T. Tsuda, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, A. Matsuoka, S. Nakamura, Y. Miyoshi, I. Shinohara
    • Journal Title

      Sci. Rep.

      Volume: 13 Issue: 1 Pages: 6450-6450

    • DOI

      10.1038/s41598-023-33603-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First detection of midlatitude plasma bubble by SuperDARN during a geomagnetic storm on May 27 and 28, 20172023

    • Author(s)
      Sori, T., Shinbori, A., Otsuka, Y., Nishioka, M., Perwitasari, S., & Nishitani, N
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 128 Issue: 4

    • DOI

      10.1029/2022ja031157

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tong-Hunga Ha’apai volcano2023

    • Author(s)
      A. Shinbori, Y. Otsuka, T. Sori, M. Nishioka, S. Perwitasari, T. T. Tsuda, N. Nishitani, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, A. Matsuoka, S. Nakamura, Y. Miyoshi, I. Shinohara
    • Journal Title

      Earth Planets Space

      Volume: 75 Issue: 1 Pages: 175-175

    • DOI

      10.1186/s40623-023-01930-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Machine learning approach for ionospheric scintillation prediction on ROTI parameter over the African region during solar cycle 242023

    • Author(s)
      Tete Stephen、Otsuka Yuichi、Zahra Waheed K.、Mahrous Ayman
    • Journal Title

      Advances in Space Research

      Volume: - Issue: 12 Pages: 6325-6342

    • DOI

      10.1016/j.asr.2023.12.026

    • Related Report
      2023 Annual Research Report
    • 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 Asia2023

    • 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

    • Related Report
      2023 Annual Research Report
    • 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 Asia2023

    • 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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Day-to-day variability of the equatorial ionosphere in Asian sector during August?October 20192023

    • Author(s)
      Liu Huixin、Otsuka Yuichi、Hozumi Kornyanat、Yu Tao
    • Journal Title

      Frontiers in Astronomy and Space Sciences

      Volume: 10 Pages: 1-10

    • DOI

      10.3389/fspas.2023.1198739

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ionospheric disturbances over South America related to Tonga volcanic eruption2023

    • Author(s)
      Hisao Takahashi, CAOB Figueiredo, D Barros, CM Wrasse, GA Giongo, RH Honda, LFR Vital, LCA Resende, PK Nyassor, TT Ayorinde, CS Carmo, MB Padua, Y Otsuka
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1

    • DOI

      10.1186/s40623-023-01844-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Equatorial plasma bubble intensities across longitudinal sectors of the globe using GNSS observations2023

    • Author(s)
      Okoh Daniel、Shiokawa Kazuo、Otsuka Yuichi、Rabiu Babatunde、Habarulema John Bosco、Migoya-Orue Yenca、Cesaroni Claudio
    • Journal Title

      Journal of Atmospheric and Solar-Terrestrial Physics

      Volume: 249 Pages: 106097-106097

    • DOI

      10.1016/j.jastp.2023.106097

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Periodic oscillations of Doppler frequency excited by the traveling ionospheric disturbances associated with the Tonga eruption in 20222023

    • Author(s)
      Nakata, H., Hosokawa, K., Saito, S., Otsuka, Y., Tomizawa, I.
    • Journal Title

      Earth Planets Space

      Volume: 75 Issue: 1 Pages: 158-158

    • DOI

      10.1186/s40623-023-01914-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Statistical Study of Longitudinal Extent of Pc1 Pulsations Using Seven PWING Ground Stations at Subauroral Latitudes2023

    • Author(s)
      Liu Jie、Shiokawa Kazuo、Oyama Shin‐Ichiro、Otsuka Yuichi、Jun Chae‐Woo、Nose Masahito、Nagatsuma Tsutomu、Sakaguchi Kaori、Kadokura Akira、Ozaki Mitsunori、Connors Martin、Baishev Dmitry、Nishitani Nozomu、Oinats Alexey、Kurkin Vladimir、Raita Tero
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 128 Issue: 1 Pages: 1-17

    • DOI

      10.1029/2021ja029987

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multi‐Event Analysis of Magnetosphere‐Ionosphere Coupling of Nighttime Medium‐Scale Traveling Ionospheric Disturbances From the Ground and the Arase Satellite2023

    • Author(s)
      Kawai K.、Shiokawa K.、Otsuka Y.、Oyama S.、Connors M. G.、Kasahara Y.、Kasaba Y.、Nakamura S.、Tsuchiya F.、Kumamoto A.、Shinbori A.、Matsuoka A.、Shinohara I.、Miyoshi Y.
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 128 Issue: 2

    • DOI

      10.1029/2022ja030542

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ionospheric modulation by EMIC wave-driven proton precipitation: Observations and simulations2023

    • Author(s)
      Tian, X., Y. Yu, F. Gong, L. Ma, J. Cao, S. C. Solomon, P. R. Shreedevi, K. Shiokawa, Y. Otsuka, S.-i. Oyama, and Y. Miyoshi
    • Journal Title

      J. Geophys. Res.

      Volume: 128 Issue: 1

    • DOI

      10.1029/2022ja030983

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A statistical study of convective and dynamic instabilities in the polar upper mesosphere above Troms?2023

    • Author(s)
      Nozawa Satonori、Saito Norihito、Kawahara Takuya、Wada Satoshi、Tsuda Takuo T.、Maeda Sakiho、Takahashi Toru、Fujiwara Hitoshi、Narayanan Viswanathan Lakshmi、Kawabata Tetsuya、Johnsen Magnar G.
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 22-22

    • DOI

      10.1186/s40623-023-01771-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Alfven velocity sudden increase as an indicator of the plasmapause2023

    • Author(s)
      Rubtsov, A. V., M. Nose, A. Matsuoka, Y. Kasahara, A. Kumamoto, F. Tsuchiya, I. Shinohara, and Y. Miyoshi
    • Journal Title

      Journal of Atmospheric and Solar-Terrestrial Physics

      Volume: 245 Pages: 1-7

    • DOI

      10.1016/j.jastp.2023.106040

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polarization and spatial distribution features of Pc4 and Pc5 waves in the magnetosphere2023

    • Author(s)
      Rubtsov, A. V., M. Nose, A. Matsuoka, I. Shinoahara, and Y. Miyoshi
    • Journal Title

      Journal of Geophysical Research

      Volume: 128 Issue: 10 Pages: 1-19

    • DOI

      10.1029/2023ja031674

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Plasmasphere control of ULF wave distribution at different geomagnetic conditions2023

    • Author(s)
      Rubtsov, A. V., M. Nose, A. Matsuoka, Y. Kasahara, A. Kumamoto, F. Tsuchiya, I. Shinohara, and Y. Miyoshi
    • Journal Title

      Journal of Geophysical Research

      Volume: 128 Issue: 10 Pages: 1-17

    • DOI

      10.1029/2023ja031675

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Statistical analysis for EUV dynamic spectra and their impact on the ionosphere during solar flares2023

    • Author(s)
      Nishimoto Shohei、Watanabe Kyoko、Jin Hidekatsu、Kawai Toshiki、Imada Shinsuke、Kawate Tomoko、Otsuka Yuichi、Shinbori Atsuki、Tsugawa Takuya、Nishioka Michi
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 30-30

    • DOI

      10.1186/s40623-023-01788-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multi-event study of simultaneous observations of isolated proton auroras at subauroral latitudes using ground all-sky imagers and the Van Allen Probes2022

    • Author(s)
      Nakamura, K., K. Shiokawa, M. Nose, T. Nagatsuma, K. Sakaguchi, H. Spence, G. Reeves, H. O. Funsten, R. MacDowall, C. Smith, J. Wygant, J. Bonnell, and I. R. Mann
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Issue: 9 Pages: 1-25

    • DOI

      10.1029/2022ja030455

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Statistical study of subauroral arc detachment at Athabasca, Canada: New insights on STEVE2022

    • Author(s)
      Yadav, S., K. Shiokawa, Y. Otsuka, and M. Connors
    • Journal Title

      J. Geophys. Res.

      Volume: 127 Issue: 9

    • DOI

      10.1029/2021ja029856

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-dimensional fourier analysis of atmospheric gravity waves and medium-scale traveling ionospheric disturbances observed in airglow images in Hawaii over three years2022

    • Author(s)
      Naito, H., K. Shiokawa, Y. Otsuka, H. Fujinami, T. Tsuboi, T. Sakanoi, A. Saito, and T. Nakamura
    • Journal Title

      J. Geophys. Res.

      Volume: 127 Issue: 10

    • DOI

      10.1029/2022ja030346

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermospheric wind response to a sudden ionospheric variation in the trough: event at a pseudo-breakup during geomagnetically quiet conditions2022

    • Author(s)
      Oyama, S.-I., H. Vanhamaki, L. Cai, A. Aikio, M. Rietveld, Y. Ogawa, T. Raita, M. Kellinsalmi, K. Kauristie, B. Kozelov, A. Shinbori, K. Shiokawa et al.
    • Journal Title

      Earth Planets Space

      Volume: 74 Issue: 1 Pages: 106-106

    • DOI

      10.1186/s40623-022-01710-6

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Flux enhancements of field-aligned low-energy O+ ion (FALEO) in the inner magnetosphere: A possible source of warm plasma cloak and oxygen torus2022

    • Author(s)
      Nose, M., A. Matsuoka, Y. Miyoshi, K. Asamura, T. Hori, M. Teramoto, I. Shinohara, M. Hirahara, C. A. Kletzing, C. W. Smith, R. J. MacDowall, H. E. Spence, G. D. Reeves, and J. W. Gjerloev
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Issue: 3 Pages: 1-19

    • DOI

      10.1029/2021ja030008

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Application of magneto-impedance (MI) sensor to geomagnetic field measurements2022

    • Author(s)
      Nose, M., T. Kawano, and H. Aoyama
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Issue: 10 Pages: 1-13

    • DOI

      10.1029/2022ja030809

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Solar and geomagnetic activity dependence of 150-km echoes observed by the Equatorial Atmosphere Radar in Indonesia2022

    • Author(s)
      Yokoyama Tatsuhiro、Takagi Rieko、Yamamoto Mamoru
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1

    • DOI

      10.1186/s40623-022-01675-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Statistical Analysis of Medium‐Scale Traveling Ionospheric Disturbances Over Japan Based on Deep Learning Instance Segmentation2022

    • Author(s)
      Liu Peng、Yokoyama Tatsuhiro、Fu Weizheng、Yamamoto Mamoru
    • Journal Title

      Space Weather

      Volume: 20 Issue: 7

    • DOI

      10.1029/2022sw003151

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On using a double-thin-shell approach and TEC perturbation component to sound night-time mid-latitude E?F coupling2022

    • Author(s)
      Fu Weizheng、Yokoyama Tatsuhiro、Ssessanga Nicholas、Yamamoto Mamoru、Liu Peng
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1

    • DOI

      10.1186/s40623-022-01639-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Using principal component analysis of satellite and ground magnetic data to model the equatorial electrojet and derive its tidal composition2022

    • Author(s)
      Soares, G.,Y. Yamazaki, A. Morschhauser et al.
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Issue: 9

    • DOI

      10.1029/2022ja030691

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ionospheric current variations by empirical orthogonal function analysis: Solar activity dependence and longitudinal differences2022

    • Author(s)
      Owolabi, C., H. Ruan, Y. Yamazaki et al.
    • Journal Title

      Journal of Geophysical Research: Space Physic

      Volume: 127 Issue: 1

    • DOI

      10.1029/2021ja029903

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of Meteoric Ions on Ionospheric Conductance at Jupiter2022

    • Author(s)
      Nakamura Yuki、Terada Koichiro、Tao Chihiro、Terada Naoki、Kasaba Yasumasa、Leblanc Fran?ois、Kita Hajime、Nakamizo Aoi、Yoshikawa Akimasa、Ohtani Shinichi、Tsuchiya Fuminori、Kagitani Masato、Sakanoi Takeshi、Murakami Go、Yoshioka Kazuo、Kimura Tomoki、Yamazaki Atsushi、Yoshikawa Ichiro
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 127 Issue: 3

    • DOI

      10.1029/2022ja030312

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extreme enhancements of electron temperature in low latitude topside ionosphere during the October 2016 storm2022

    • Author(s)
      Zhang,R.,L. Liu, H. Ma, et al.
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Issue: 3

    • DOI

      10.1029/2022ja030278

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A confirmation of vertical acoustic resonance and field-aligned current generation just after the 2022 Hunga Tonga Hunga Ha'apai volcanic eruption2022

    • Author(s)
      Toshihiko Iyemori, Michi Nishioka, Yuichi Otsuka and Atsuki Shinbori
    • Journal Title

      Earth, Planets and Space

      Volume: 74:103 Issue: 1

    • DOI

      10.1186/s40623-022-01653-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars observations2022

    • Author(s)
      Shinbori, A., Y. Otsuka, T. Sori, M. Nishioka, S. Perwitasari, T. Tsuda, and N. Nishitani
    • Journal Title

      Earth, Planets Space

      Volume: 74 Issue: 1 Pages: 106-106

    • DOI

      10.1186/s40623-022-01665-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modeling Post-Sunset Equatorial Spread-F Occurrence as a Function of Evening Upward Plasma Drift Using Logistic Regression, Deduced from Ionosondes in Southeast Asia2022

    • Author(s)
      Abadi Prayitno、Ahmad Umar Ali、Otsuka Yuichi、Jamjareegulgarn Punyawi、Martiningrum Dyah Rahayu、Faturahman Agri、Perwitasari Septi、Saputra Randy Erfa、Septiawan Reza Rendian
    • Journal Title

      Remote Sensing

      Volume: 14 Issue: 8 Pages: 1896-1896

    • DOI

      10.3390/rs14081896

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Observation of Source Plasma and Field Variations of a Substorm Brightening Aurora at <i>L</i> ???6 by a Ground‐Based Camera and the Arase Satellite on 12 October 20172022

    • Author(s)
      Chen L.et al.
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 127 Issue: 11 Pages: 1-28

    • DOI

      10.1029/2021ja030072

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / 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 observations2023

    • Author(s)
      Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, et al.
    • Organizer
      EGU 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Development of Technique for Estimating Plasmaspheric Total Electron Content Variations from GPS Total Electron Content Data2023

    • Author(s)
      Yuichi Otsuka, Zhiyu Chen, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka
    • Organizer
      IRI workshop
    • Related Report
      2023 Annual Research Report
    • 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 program2023

    • Author(s)
      Shiokawa, K., Y. Otsuka, and the PWING Team
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • 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, Norway2023

    • Author(s)
      Shin-ichiro Oyama, Anita Aikio, Takeshi Sakanoi, Keisuke Hosokawa, Heikki Vanhamaki, Lei Cai, Virtanen I Ilkka, Marcus N Pedersen, Kazuo Shiokawa, et al.
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Horizontal inhomogeneity in the D-region ionosphere due to X-class solar flares by OCTAVE VLF/LF observations2023

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Post-midnight にオーロラオーバルの極側で見られた STEVE のような発光の事例解析2023

    • Author(s)
      南條壮汰,Gabriel Arne Hofstra,野澤悟徳,塩川和夫,川端哲也,細川敬祐
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 小スケール大気重力波に伴う温度・風速変動の観測的評価:水平伝搬方向の見積もり2023

    • Author(s)
      鈴木臣、野澤悟徳,大山伸一郎,塩川和夫
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Multi-event study of 630-nm airglow enhancement during substorms based on ground-based observations in Japan2023

    • Author(s)
      森田早紀、塩川和夫、新堀淳樹、大塚雄一、藤本晶子、吉川顕正、西岡未知、Septi Perwitasari
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On the EMIC wave activity in the inner magnetosphere associated with solar wind dynamic pressure variations2023

    • Author(s)
      Shreedevi P.R., Yoshizumi Miyoshi, Yiqun Yu, Xingbin Tian, Vania Jordanova, Chae-Woo Jun , Kazuo Shiokawa
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efforts of Nagoya University on archiving and publication of university academic data2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Arase observations of field and plasma characteristics in the source region of a storm-time auroral brightening arc2023

    • Author(s)
      Chen Liwei, 塩川 和夫, 三好 由純, 大山 伸一郎, Jun Chae-Woo, 小川 泰信, 細川 敬祐, 風間 洋一, Wang Shiang-Yu, Tam Sunny Wing-Yee et al.
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地上光学・電波機器とあらせ衛星・Van Allen Probes衛星の同時観測に基づくサブオーロラ帯の3種類のオーロラの複数例解析:Coulomb衝突によるHeat fluxの見積り2023

    • Author(s)
      椙村 怜, 塩川 和夫, 大塚 雄一, 大山 伸一郎, Connors Martin, 門倉 昭, Poddelsky Alexey, Poddelsky Igor, 西谷 望, Shepherd Simon, Ruohoniemi J, Smith Charles, et al.
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Possible roles of magnetospheric density ducts in controlling the shape of pulsating aurora and the energy of precipitating electrons2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 多周波リオメータ,EMCCD全天カメラを用いたオメガバンドオーロラに伴う放射線帯電子降下の時空間構造に関する研究2023

    • Author(s)
      高野向陽, 細川敬祐, 大山伸一郎, A. Kero, 三好由純
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Japan's Activities for the EISCAT_3D Project2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Small-scale pulsating auroral distribution obtained with the auroral camera on the LAMP rocket2023

    • Author(s)
      Sakanoi, T., K. Asamura, Y. Miyoshi, K. Hosokawa, A. Halford, M. Lessard
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Low-energy energetic neutral atom analyzer (PEP/JNA) onboard the JUICE mission2023

    • Author(s)
      Asamura, K., M. Shimoyama, Y. Futaana, Y. Saito, Y. Miyoshi, T. Sakanoi, PEP team
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] LAMP Observation of Precipitating Electron Simultaneously Forming Microbursts and Pulsating Auroras2023

    • 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
    • Related Report
      2023 Annual Research Report
    • 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 rocket2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relativistic electron microburst is a high-energy tail of pulsating aurora electrons: LAMP sounding rocket experiment and computer simulation2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Towards a closer cooperation between space and seismology communities2023

    • Author(s)
      Pilipenko, S. and K. Shiokawa
    • Organizer
      7th International Workshop on Earthquake Process (IWEP7)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [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 satellites2023

    • 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
    • Related Report
      2023 Annual Research Report
    • 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 observations2023

    • Author(s)
      Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji et al.
    • Organizer
      EGU
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-energy particle precipitation associated with electromagnetic ion cyclotron waves and its consequences on the atmosphere2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetosphere-ionosphere coupling2023

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      ICTP-SCOSTEP-ISWI Workshop on the Predictability of the Solar-Terrestrial Coupling - PRESTO
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Proton precipitation at sub-auroral latitudes and its association to EMIC waves: Global Modelling and Observations2023

    • Author(s)
      Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji et al.
    • Organizer
      IUGG General Assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Using multipoint observations to quantify microburst precipitation caused by whistler mode chorus waves2023

    • 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, et al.
    • Organizer
      IUGG General Assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] EMIC wave induced proton precipitation during the 27-28 May 2017 storm: Comparison of BATSRUS+RAM-SCB simulations with ground/space based observations2023

    • Author(s)
      Shreedevi P R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Minghui Zhu, Satoko Nakamura, Chae-Woo Jun, Masafumi Shoji et al.
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Localized mesospheric ozone destruction induced by magnetospheric EMIC waves2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study of the propagation of different VLF emissions from multi-point observations in northern Finland2023

    • Author(s)
      Claudia Martinez-Calderon, Jyrki Manninen, Kazuo Shiokawa , Mitsunori Ozaki, Ondrej Santolik and Tauno Turunen
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • 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 Observations2023

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Plasmaspheric Total Electron Content Variations obtained from GPS Total Electron Content Data2023

    • Author(s)
      Yuichi Otsuka, Zhiyu Chen, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka, Fuminori Tsuchiya et al.
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] VLF bursty-patches observed at PWING stations2023

    • Author(s)
      Jyrki Manninen, Claudia Martinez-Calderon, Kazuo Shiokawa, and the PWING Team
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Maps of foF2 and hmF2 obtained from a high-latitude all-sky airglow imager2023

    • Author(s)
      Michael Negale, Vince Eccles, Jeffrey Holmes, and Kazuo Shiokawa
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ring-shaped expanding pulsating aurora: simultaneous observations with Arase2023

    • 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
    • Related Report
      2023 Annual Research Report
    • 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 radar2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ノルウェー・トロムソーのファブリ・ペロー干渉計で2023年3月24日に観測された427.8nm窒素分子イオンオーロラを通したイオンアップフローの分光計測2023

    • Author(s)
      菊池大希、塩川和夫、大山伸一郎、小川泰信、栗原純一
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] タイトル:630-nm大気光増光の3地点同時観測に基づくサブストームに伴う中緯度への電場侵入の複数例解析2023

    • Author(s)
      森田早紀、塩川和夫、大塚雄一、西谷望、新堀淳樹、惣宇利卓也、藤本晶子、吉川顕正、西岡未知、Septi Perwitasari、山本衛
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] IMF dependence of midnight bifurcation of the thermospheric wind based on nine winter measurements in Tromsoe, Norway2023

    • 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
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] Statistical study of the overlap region between plasmasphere and ring-current ions using the Van Allen Probes satellites2023

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Charles Smith, Robert MacDowall, Harlan Spence, Geoff Reeves, Herbert O. Funsten
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大型研究プロジェクト「太陽地球系結合過程の研究基盤形成」2023

    • Author(s)
      山本 衛, 小川 泰信, 塩川 和夫, 吉川 顕正, 岩井 一正
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脈動オーロラの空間構造と降下電子エネルギーの制御に関するコーラス波ダクト伝搬の役割2023

    • Author(s)
      伊藤ゆり,細川敬祐,小川泰信,三好由純,土屋史紀,吹澤瑞貴,村瀬清華,大山伸一郎,中村紗都子,笠原禎也,松田昇也,笠原慧,堀智昭,横田勝一郎,桂華邦裕,篠原育
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁気嵐中に発生したオメガバンドオーロラに伴う放射線帯電子降下の時空間変動: 多周波リオメータ, EMCCD 全天カメラによる同時観測2023

    • Author(s)
      高野向陽, 細川敬祐, 大山伸一郎, Antti Kero, 三好由純, 小川泰信, 栗田怜, 南條壮汰
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] Center for Heliospheric Science : a core center to promote heliospheric system science2023

    • Author(s)
      Yoshizumi Miyoshi, Iku Shinohara, Go Murakami, Shinsuke Imada, Tomoaki Hori, Satoko Nakamura, C.-W. Jun, Atsuki Shinbori, Takuya Sori et al.
    • Organizer
      Hinode-16/IRIS-13 meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Activities of the Hinode and SOLAR-C Science Center at ISEE in Nagoya University2023

    • 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 et al.
    • Organizer
      Hinode-16/IRIS-13 meeting
    • Related Report
      2023 Annual Research Report
    • 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 Events2023

    • 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
      15th International Conference on Substorms
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Substorm onset: An east-west aligned instability from spreading of flow channels driven by meso-scale polar cap flows2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Latitudinal propagation of VLF emissions from multi-point observations in Finland: First results from the Oulujarvi ground station2023

    • Author(s)
      C. Martinez-Calderon, J. Manninen, K. Shiokawa, M. Ozaki, V. Vuolteenaho, and David Pisa
    • Organizer
      AGU Fall Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EMIC wave activity in the inner magnetosphere associated with solar wind dynamic pressure variations: Global modeling and observations2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mesoscale polar cap flow channels: Initial evaluation of long duration Propagation and effects on space weather disturbances2023

    • 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
    • Related Report
      2023 Annual Research Report
    • 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 satellites2023

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Charles Smith, Robert MacDowall, Harlan Spence, Geoff Reeves, Herbert O. Funsten
    • Organizer
      AGU Fall Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IMF dependence of the midnight thermospheric wind at an auroral latitude based on 9 winter measurements in Tromsoe, Norway2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First observation of temporal variation of STEVE heights by triangulation using two all-sky cameras at Athabasca, Canada2023

    • Author(s)
      L. Chen, K. Shiokawa, Y. Kato, T. Tsuboi, and M. Connors
    • Organizer
      AGU Fall Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Utilizing maps of foF2 and hmF2 obtained from a high-latitude all-sky airglow imager in a data assimilative model2023

    • Author(s)
      Michael Negale, Vince Eccles, Jeffrey Holmes, Keisuke Hosokawa, and Kazuo Shiokawa
    • Organizer
      AGU Fall Meeting 2023
    • Related Report
      2023 Annual Research Report
    • 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 Precipitation2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Review of Ionospheric Plasma: Measurements and Disturbances2023

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      INTERNATIONAL COLLOQUIUM ON EQUATORIAL AND LOW LATITUDE IONOSPHERE
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ionosphereic Plasma2023

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      3rd Iberian Space Science Summer School
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Localized mesospheric ozone destruction below isolated proton aurora at subauroral latitudes2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IMF dependence of the midnight thermospheric wind at an auroral latitude based on 9 winter measurements in Tromsoe, Norway2023

    • 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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pc1 pulsations simultaneously observed at low- to high-latitude stations and by the Swarm satellites during the March 2023 storm,2023

    • Author(s)
      能勢正仁, 塩川和夫, Liejun Wang, and Bill Jones
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] Application of magneto-impedance (MI) sensor to geomagnetic field measurements for magnetoseismology2023

    • 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
    • Related Report
      2023 Annual Research Report
    • 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 rocket2023

    • 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
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Incoherent Scatter Observations by the MU Radar over Japan: Potential Contribution to the IRI Model2023

    • Author(s)
      Yokoyama, T., M. Yamamoto, and Y. Otsuka
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi-Scale Simulation of Equatorial Plasma Bubbles with GAIA Model2023

    • Author(s)
      Yokoyama, T., H. Jin, and H. Shinagawa
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Solar and Geomagnetic Activity Dependence of 150-km Echoes Observed by the Equatorial Atmosphere Radar in Indonesia2023

    • Author(s)
      Yokoyama, T., R. Takagi, and M. Yamamoto
    • Organizer
      AOGS 20th Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Automatic scaling of foF2 and foEs from ionograms obtained at Shigaraki MU Observatory2023

    • Author(s)
      Yokoyama, T., Y. Uneyama, P. Liu, and M. Yamamoto
    • Organizer
      AOGS 20th Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spatiotemporal Sequence Prediction of Global Ionospheric Total Electron Content Map Based on Deep Learning Recurrent Neural Network2023

    • Author(s)
      Liu, P., T. Yokoyama, and M. Yamamoto
    • Organizer
      URSI GASS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 信楽イオノゾンデ観測を用いた機械学習によるスポラディックE層の自動検出と統計解析2023

    • Author(s)
      横山 竜宏, 采山 裕紀, 劉 鵬, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 深層学習再帰型ニューラルネットワークを用いた地球電離圏全電子数マップの時空間系列予測2023

    • Author(s)
      劉 鵬, 横山 竜宏, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Study of Nighttime Mid-latitude E-F Coupling in Geomagnetic Conjugate Regions Using a Double-thin-shell Model and Multi-source Data2023

    • Author(s)
      Weizheng Fu, 横山 竜宏, Nicholas Ssessanga, 馬 冠一, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] The Occurrence Characteristics of Daytime Spread F in the Low Latitude Regions During 2013-2020 Observed by Puer Ionosonde2023

    • Author(s)
      Lehui Wei, Chunhua Jiang, and Tatsuhiro Yokoyama
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Three-dimensional Simulation of Equatorial Spread F: Effects of Field-aligned Plasma Flow and Ionospheric Conductivity2023

    • Author(s)
      Zezhong Li, Jiuhou Lei, Binzheng Zhang, and Tatsuhiro Yokoyama
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Latest activities of i-SPES & Kyutech FM-CW project2023

    • Author(s)
      藤本 晶子, 阿部 修司, 吉川 顕正, 池田 昭大, 廣重 優, 中村 駿仁
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Extraction of ionospheric echoes for time series Ionograms2023

    • Author(s)
      Hiroshige, Y., Fujimoto, A., Ikeda, A., Abe, S., Yoshikawa, A.
    • Organizer
      Japan Geoscience Union Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ペナルティ付き動体検出に基づいた時系列イオノグラム画像における電離圏エコー抽出モデルの開発2023

    • Author(s)
      廣重 優, 藤本 晶子, 阿部 修司, 池田 昭大, 吉川 顕正
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
  • [Presentation] A penalized motion detection model for extracting ionospheric echoes from low signal-to-noise ratio Ionogram video images2023

    • Author(s)
      Hiroshige, Y., Fujimoto, A., Ikeda, A., Abe, S., Yoshikawa, A.
    • Organizer
      29th International Conference on Artificial Life and Robotics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Extraction model of ionospheric echoes from ionogram video based images based on penalized motion detection2023

    • Author(s)
      Hiroshige, Y., Fujimoto, A., Ikeda, A., Abe, S., Yoshikawa, A.
    • Organizer
      2nd International Workshop on Metaverse
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Equinoctial asymmetry of plasma bubble occurrence and electric field at evening: GPS and ionosonde measurements in Southeast Asia2023

    • Author(s)
      Yuichi Otsuka, Prayitno Abadi, Kornyanat Hozumi, Alif Almahi
    • Organizer
      3rd International Workshop on Equatorial Plasma Bubbles (EPB窶?3)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] VHF Radar Observations of Field-Aligned Irregularities at Low and Middle Latitudes2023

    • Author(s)
      Yuichi Otsuka
    • Organizer
      International Meridian Circle Program(IMCP) 2023 Space Weather School
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GNSS observations of traveling ionospheric disturbances in the ionosphere2023

    • Author(s)
      Yuichi Otsuka
    • Organizer
      AAPPS-DPP2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Equinoctial asymmetry of GPS scintillation occurrence and drift velocities at post-sunset in Southeast Asia2023

    • Author(s)
      Yuichi Otsuka, Prayitno Abadi, Kornyanat Hozumi, Alif Almahi
    • Organizer
      URSI GASS 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Four-Minute Total Electron Content Fluctuations over Japan after the 2022 Hunga Tonga Hunga Ha'apai Volcanic Eruption2023

    • Author(s)
      Yuichi Otsuka, Fu Weizheng
    • Organizer
      The 154 th SGEPSS General Assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantification of Electron Microburst Precipitation as an Outer Radiation Belt Loss Process2023

    • 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 et al.
    • Organizer
      National Radio Science Meeting (NRSM)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coordinated observations between the Arase satellite and ground-based observations over Arctic2023

    • Author(s)
      Y. Miyoshi1, I. Shinohara, K. Shiokawa , K. Hosokawa, Y. Ogawa, S. Oyama, S. Kurita, M. Ozaki, Y. Kazama, S-Y. Wang, K. Asamura, S. Kasahara et al.
    • Organizer
      7th International Symposium on the Arctic Research (ISAR-7)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Studies of pulsating aurorae: simultaneous observations with the Arase satellite and optical instruments in the Arctic2023

    • Author(s)
      K. Hosokawa, Y. Miyoshi, M. Ozaki, S.-I. Oyama, Y. Ogawa, S. Kurita, Y. Kasahara, Y. Kasaba, S. Yagitani, S. Matsuda, F. Tsuchiya et al.
    • Organizer
      7th International Symposium on the Arctic Research (ISAR-7)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical study of high energy electron precipitation based on Arase satellite - EISCAT collaborative observation data2023

    • Author(s)
      Y. Ogawa, M. Fukizawa, Y. Miyoshi, K. Hosokawa, S. Oyama, K. Shiokawa, K. Seki, S. Kurita, K. Asamura, S. Kasahara, et al.
    • Organizer
      7th International Symposium on the Arctic Research (ISAR-7)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coordinated observations of energetic electron precipitation by subionospheric VLF/LF radio propagation with other groundbased facilities2023

    • Author(s)
      F. Tsuchiya, H. Ohya, Y. Miyoshi, K. Shiokawa, Y. Hobara, M. Connors, Y. Ogawa, A. Mizuno, S. Oyama, Y. Kasahara, T. Nishiyama, H. Misawa, and T. Obara
    • Organizer
      7th International Symposium on the Arctic Research (ISAR-7)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ジオスペース探査あらせ衛星の科学成果と今後の観測計画について2023

    • Author(s)
      三好由純, 篠原育, 高島健, 浅村和史, Wang S-Y, 風間洋一, 笠原慧, 横田勝一郎, 三谷烈史, 東尾奈々, 笠原禎也, 松岡彩子, 小嶋浩嗣, 塩川和夫, 関華奈子
    • Organizer
      宇宙科学シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 太陽圏サイエンスセンター2023

    • Author(s)
      三好由純, 篠原育, 堀智昭, 中村紗都子, Jun C-W, 松本琢磨, 飯島晴久, 増田智, 岩井一正, 瀬川朋紀, 塩川和夫, 他
    • Organizer
      宇宙科学シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 太陽圏サイエンスセンターの設立と活動2023

    • Author(s)
      増田智, 三好由純, 堀智昭, C.-W. Jun, 松本琢磨, 中村紗都子, 飯島陽久, 岩井一正, 瀬川朋紀, 塩川和夫, 小路真史, 草野完也, 篠原育, 清水敏文, 他
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [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
    • Related Report
      2022 Annual Research Report
  • [Presentation] Correspondence of Pi2 pulsations, aurora luminosity, and plasma flux fluctuation near a substorm brightening aurora: Arase observations2023

    • 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, et al.
    • Organizer
      第18回 ERGサイエンス会議
    • Related Report
      2022 Annual Research Report
  • [Presentation] Possibility of collaborations between GDC and Japanese ground-based network observations2023

    • Author(s)
      Y. Otsuka, Y. Ogawa, K. Shiokawa, Y. Miyoshi
    • Organizer
      Symposium on the Future of Heliospheric Science: From Geotail and Beyond
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Correspondence of Pi2 pulsations, aurora luminosity, and plasma flux fluctuation near a substorm brightening aurora: Arase observations2023

    • 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 et al.
    • Organizer
      第18回 ERGサイエンス会議
    • Related Report
      2021 Annual Research Report
  • [Presentation] Multipoint Measurement of Latitudinally Propagating EMIC Waves by Arase, Van Allen Probe A, PWING and CARISMA2022

    • Author(s)
      Matsuda, S., Y. Miyoshi, Y. Kasahara, L. Blum, C. Colpitts, K. Asamura, Y. Kasaba, A. Matsuoka, F. Tsuchiya, A. Kumamoto, M. Teramoto et al.
    • Organizer
      3rd URSI AT-AP-RASC meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Test observations by low-cost small all-sky imagers for multi-point measurements of airglow at middle and low latitudes2022

    • Author(s)
      Kazuo Shiokawa, Yuka Yamamoto, Takumi Adachi, Kouki Kawai, Kohki Nakamura, Jie Liu, Liwei Chen, Yuto Kato, Takuma Tsuboi, Masaki Sato et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current status of the ground-based multi-point network from subauroral to equatorial latitudes by the Optical Mesosphere Thermosphere Imagers (OMTIs) and the PWING Project2022

    • Author(s)
      Kazuo Shiokawa, Yuichi Otsuka, and the PWING Team
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diurnal and seasonal variations in the D-region ionosphere using LF transmitter signals2022

    • Author(s)
      Yuma Nozaki, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, Kazuo Shiokawa
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ULF modulation of VLF/LF transmitter signals in the D-region ionosphere2022

    • Author(s)
      Kentaro Tanaka,Hiroyo Ohya,Fuminori Tsuchiya, Kazuo Shiokawa, Yoshizumi Miyoshi, Mariko Teramoto, Martin Connors, and Hiroyuki Nakata
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large solar flare effects on the D-region ionosphere using VLF/LF transmitter signals2022

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, and Kazuo Shiokawa
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地磁気静穏時のサブオーロラ帯における熱圏風加速2022

    • Author(s)
      大山伸一郎、細川敬祐、坂野井健、塩川和夫、西谷望、新堀淳樹、小川泰信
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical study of cosmic noise absorption (CNA) observed at six stations at subauroral latitudes: Relation to ELF/VLF waves and substorms2022

    • Author(s)
      Yuto Kato, Kazuo Shiokawa, Yoshimasa Tanaka, Mitsunori Ozaki, Akira Kadokura, Shin-ichiro Oyama, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Martin Connors, Dmitry Baishev
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spectral analysis of the phase velocity distribution of AGWs and MSTIDs in airglow images at Darwin 窶? Preliminary comparison with airglow images at Sata, Japan2022

    • Author(s)
      Tsuboi, T., K. Shiokawa, Y. Otsuka, T. Nakamura, D. Neudegg
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical analysis of polar-type medium-scale travelling ionospheric disturbances observed by a 630-nm airglow imager at Nyrola, Finland2022

    • Author(s)
      Masaki Sato, Kazuo Shiokawa, Shin-ichiro Oyama, Yuichi Otsuka
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event analysis of three-types of auroras at subauroral latitudes using ground-based all-sky images and the Arase and Van Allen Probes satellites2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Martin Connors, Akira Kadokura, Boris Shevtsov, Igor Poddelsky, Craig Kletzing et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A study of temporal and spatial variations of plasmaspheric total electron content during magnetic storms using the worldwide GPS data2022

    • Author(s)
      Zhiyu Chen, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Takuya Tsugawa, Michi Nishioka
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] What can we learn from the quiet high-latitude ionosphere?2022

    • Author(s)
      Shin-ichiro Oyama, Heikki Vanhamaki, Lei Cai, Anita Aikio, Michael Rietveld, Yasunobu Ogawa, Tero Raita, Mirjam Kellinsalmi, Kirsti Kauristie, Boris Kozelov, Atsuki Shinbori, Kazuo Shiokawa, Takuo T. Tsuda, Takeshi Sakanoi
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SuperDARN observation of sub-auroral flows associated with Stable Auroral Red Arc structure during the 4 Nov 2021 storm event2022

    • Author(s)
      Nozomu Nishitani, Tomoaki Hori, Kazuo Shiokawa, Yuichi Otsuka, Boris Shevtsov, Sergey Khomotov
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multipoint Measurement of Fine-Structured EMIC Waves by Arase, Van Allen Probe A, and Ground Stations2022

    • Author(s)
      Shoya Matsuda, Yoshizumi Miyoshi, Yoshiya Kasahara, Lauren W Blum, Chris Colpitts, Kazushi Asamura, Yasumasa Kasaba, Ayako Matsuoka et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Geomagnetic Activity Dependence of High-Altitude Upflowing Ion Beam Observed by the Arase Satellite2022

    • Author(s)
      Shun Imajo, Yoshizumi Miyoshi, Kazushi Asamura, Iku Shinohara, Masahito Nose, Kazuo Shiokawa, Ayako Matsuoka, Tomoaki Hori, and Mariko Teramoto
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observational evaluation of temperature/wind perturbations associated with small-scale AGWs : Momentum flux estimation2022

    • Author(s)
      Shin Suzuki, Satonori Nozawa, Shin-ichiro Oyama, and Kazuo Shiokawa
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Variations in atmospheric electric field and VLF/LF transmitter signals associated with Tonga volcanic eruption of 15 January, 20222022

    • Author(s)
      Hiroyo Ohya, Fuminori Tsuchiya, Jaroslav Chum, Tatsuya Omori, and Kazuo Shiokawa
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparative study on chorus waves in March 2017 storm between the RAM-SCB/electron hybrid simulations, the Arase observations and the ground-based observations2022

    • Author(s)
      Y. Miyoshi, V. Jordanova, Y. Katoh, S. Saito, S. Kurita, S. Matsuda, S. Kumar, Y. Kasahara, F. Tsuchiya, A. Kumamoto, S. Nakamura, S. Kasahara et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Temporal and spatial variation of the source region of IPDP type-EMIC waves: Case stidy on 19 April 20172022

    • Author(s)
      Asuka Hirai, Fuminori Tsuchiya, Takahiro Obara, Yasumasa Kasaba, Yuto Katoh, Hiroaki Misawa, Kazuo Shiokawa, Yoshizumi Miyoshi et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SuperDARN HOP radars observation of sub-auroral flows associated with Stable Auroral Red (SAR) Arc structure during the 4 Nov 2021 storm event2022

    • Author(s)
      Nozomu Nishitani, Tomoaki Hori, Kazuo Shiokawa, Yuichi Otsuka, Boris Shevtsov, Sergey Y. Khomutov
    • Organizer
      SuperDARN workshop
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SDI-3D project2022

    • Author(s)
      Oyama and SDI-3D project team
    • Organizer
      20th international EISCAT symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A review of ground and satellite observations of auroral fragmentation into patches2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      COSPAR 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] EMISISIONS WITH TWO MODULATION PERIODS BY SPACECRAFT AND GROUND BASED STATIONS2022

    • Author(s)
      M. Hajos, A.G. Demekhov, D.L. Pasmanik, O. Santolik, J. Manninen, A.S. Nikitenko, C. Martinez-Calderon, K. Shiokawa, M. Ozaki, Baishev
    • Organizer
      COSPAR 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The estimation of the contribution of the different mechanisms to the electron acceleration up to the relativistic energies with using Arase, GOES satellite data2022

    • Author(s)
      Belakhovsky V.B., Pilipenko V.A., Antonova E.E., Shiokawa K., Miyoshi Y., Kasahara Y., Kasahara S., Higashio N.
    • Organizer
      COSPAR 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gravity wave and TID analysis using horizontal phase velocity spectrum: advantage of M-transform and tips for better performance2022

    • Author(s)
      Takuji Nakamura, Masaru Kogure, Septi Perwitasari, Mitsumu K. Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi, and Kazuo Shiokawa
    • Organizer
      COSPAR 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Active auroral arc powered by accelerated electrons from very high altitude2022

    • Author(s)
      Shun Imajo, Yoshizumi Miyoshi, Yoichi Kazama, Kazushi Asamura, Iku Shinohara, Kazuo Shiokawa, Yoshiya Kasahara, Yasumasa Kasaba et al.
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] RESPONSE OF THE D-REGION IONOSPHERE TO FIREBALLS USING VLF/LF縲?TRANSMITTER SIGNALS2022

    • Author(s)
      Takeru Suzuki , Hiroyo Ohya , Fuminori Tsuchiya , Kazuo Shiokawa , and Hiroyuki Nakata
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Response Of Atmospheric Electric Field And VLF/LF Transmitter Signals To Tonga Volcanic Eruption Of 15 January, 20222022

    • Author(s)
      Hiroyo OHYA, Fuminori TSUCHIYA, Jaroslav CHUM, Tatsuya OMORI, Kazuo SHIOKAWA
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] VLF/LF oscillations in the D-region ionosphere by ULF modulation2022

    • Author(s)
      Kentaro Tanaka, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Yoshizumi Miyoshi,Mariko Teramoto,Martin Connors, and Hiroyuki Nakata
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical analysis of local time and seasonal dependence of D-region ionosphere using LF transmitter signals2022

    • Author(s)
      Yuma Nozaki, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, Kazuo Shiokawa
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Horizontal Inhomogeneity in the D-region Ionosphere Observed by Using VLF/LF Transmitter Signals During a X-class Solar Flare2022

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Hiroyuki Nakata, and Kazuo Shiokawa
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] タイ・チュンポンにおける下向きに伸びる沿磁力線不規則構造のVHFレーダー観測2022

    • Author(s)
      大塚雄一、塩川和夫、Kornyanat Hozumi、西岡未知、津川卓也、斎藤享、Pornchai Supnithi、Punyawi Jamjareegulgarn、山本衛
    • Organizer
      第16回MUレーダー・赤道大気レーダーシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Initial Results of Low-Cost Small All-Sky Imagers for Multi-Point Measurements of Airglow and Aurora2022

    • Author(s)
      Kazuo Shiokawa, Yuka Yamamoto, Takumi Adachi, Kouki Kawai, Kohki Nakamura, Jie Liu, Liwei Chen, Yuto Kato, Takuma Tsuboi, Masaki Sato et al.
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Study of Temporal and Spatial Variations of Plasmaspheric Total Electron Content during Geomagnetic Storms by Using the Worldwide GPS Total Electron Content Data2022

    • Author(s)
      Zhiyu Chen, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spectral Analysis of the Phase Velocity Distribution of AGWs and MSTIDs in Airglow Images at Darwin, Australia, and Sata, Japan2022

    • Author(s)
      Takuma Tsuboi, Kazuo Shiokawa, Yuichi Otsuka, Hatsuki Fujinami, Takuji Nakamura, and David A. Neudegg
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] M-transform, a phase velocity analysis for continuous 2-D imaging data for studying atmospheric gravity wave studies and traveling ionospheric disturbances2022

    • Author(s)
      Nakamura. T., M. Kogure, S. Perwitasari, M. K. Ejiri, Y. Tomikawa, M. Tsutsumi, and K. Shiokawa
    • Organizer
      SCAR open science conference
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical Analysis of Local Time and Seasonal Variation in the Sub-Ionosphere Using LF Transmitter Signals2022

    • Author(s)
      Yuma Nozaki, Hiroyo Ohya, Fuminori Tsuchiya, Kenro Nozaki, Hiroyuki Nakata and Kazuo Shiokawa
    • Organizer
      2022 URSI-Japan Radio Science Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Energetic Electron Precipitations from OCTAVE VLF/LF Observations2022

    • Author(s)
      Kentaro Tanaka, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Yoshizumi Miyoshi, Mariko Teramoto, Kenro Nozaki, Martin Connors, Hiroyuki Nakata
    • Organizer
      2022 URSI-Japan Radio Science Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Horizontal Inhomogeneity of Electron Density in the D-region Ionosphere During a X-class Solar Flare Using OCTAVE VLF/LF Observations2022

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
    • Organizer
      2022 URSI-Japan Radio Science Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ionospheric disturbances2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      International Colloquium on Equatorial and Low-Latitude Ionosphere
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HASE VELOCOTY SPECTRAL ANALYSIS OF GRAVITY WAVES: APPLICATION OF M-TRANSFORM TO VARIOUS AIRGLOW IMAGING DATA2022

    • Author(s)
      Takuji Nakamura, Masaru Kogure, Septi Perwitasari, Mitsumu K. Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi and Kazuo Shiokawa
    • Organizer
      5th international ANGWIN workshop
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • 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 observations2022

    • Author(s)
      Shreedevi P.R, Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Satoko Nakamura, Chae-Woo Jun, Kazuo Shiokawa, Vania Jordanova, et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] フィンランド・ニロラの630nm大気光イメージャによって観測された極域型の中規模伝搬性電離圏擾乱の波動パラメータの統計解析2022

    • Author(s)
      佐藤雅紀,塩川和夫,大山伸一郎,大塚雄一, Arto Oksanen
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] 地上光学・電波機器とあらせ衛星・Van Allen Probes衛星の同時観測に基づくサブオーロラ帯の3種類のオーロラの複数例解析2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama , Martin Connors, Akira Kadokura, Boris Shevtsov, Alexey Poddelsky et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] ダーウィン及び佐多で得られた大気光画像の3次元スペクトル解析に基づく中間圏・熱圏波動の水平位相速度分布の比較解析2022

    • Author(s)
      T. Tsuboi, K. Shiokawa, Y. Otsuka, H.Fujinami, T. Nakamura, D. Neudegg
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] 3年間の地上多点観測データを用いたサブオーロラ帯の銀河電波吸収の急上昇の統計解析2022

    • Author(s)
      Yuto Kato, Kazuo Shiokawa, Yoshimasa Tanaka, Mitsunori Ozaki, Akira Kadokura, Shin-ichiro Oyama, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Martin Connors, and Dmitry Baishev
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] 2017年9月8日の磁気嵐中のサブストーム開始時のオーロラのあらせ衛星による観測2022

    • 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
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Active auroral arc powered by accelerated electrons from very high altitudes2022

    • Author(s)
      Shun Imajo, Yoshizumi Miyoshi, Yoichi Kazama, Kazushi Asamura, Iku Shinohara, Kazuo Shiokawa, Yoshiya Kasahara, et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] IGRFモデルおよび準3次元ポテンシャルソルバーを用いたM-I結合系におけるEEJ変動の構造解析2022

    • Author(s)
      伊重院拓也、吉川顕正、品川、陣、垰、三好、中溝、塩川
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] 小規模大学における地磁気長期観測とデータマネージメントの現状と課題2022

    • Author(s)
      尾花由紀, 才田聡子, 柿並義宏, 寺本万里子, 細川敬祐, 能勢正仁, 坂口歌織, 塩川和夫, Peter Jaquiery
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Local time and sseasonal variability of the D-region Ionosphere using OCTAVE observations2022

    • Author(s)
      Yuma Nozaki, Hiroyo Ohya, Fuminori Tsuchiya, Kenro Nozaki, Hiroyuki Nakata and Kazuo Shiokawa
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Horizontal inhomogeneity detected by OCTAVE VLF/LF observations during a X-class solar flare2022

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] ULF-modulated energetic electron precipitations in magnetically quiet time using OCTAVE VLF/LF observations2022

    • Author(s)
      Kentaro Tanaka, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Yoshizumi Miyoshi, Mariko Teramoto, Kenro Nozaki, Martin Connors, and Hiroyuki Nakata
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] 宇宙天気・宇宙気候研究のこれまでとこれから2022

    • Author(s)
      塩川和夫
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 学術データの大規模アーカイブとメタデータ整備:名古屋大学の取り組みから2022

    • Author(s)
      三好、能勢、大塚、梅田、増田、堀、新堀、飯島、Jun, 松本、塩川、端場、直江、岡本、大平、松原、青木、高橋、山田、林
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] VHF radar observation of downward moving field-aligned irregularities in the F region over Chumphon, Thailand2022

    • Author(s)
      Yuichi Otsuka, Kazuo Shiokawa, Kornyanat Hozumi, Michi Nishioka, Takuya Tsugawa, Susumu Saito, Pornchai Supnithi, et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] ISEEにおけるDOI付与及びデータ引用の推進2022

    • Author(s)
      T. Hori, Y. Miyoshi, M. Nose, C.-W. Jun, S. Nakamura, M. Kitahara, A. Maeda, T. Segawa, F. Miyake, K. Hosokawa, S. Masuda, et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] A Study of Variations of Plasmaspheric Total Electron Content during Magnetic Storms by Using the GPS Total Electron Content Data2022

    • Author(s)
      Zhiyu Chen, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka, Fuminori Tsuchiya et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Gravity wave and TID analysis using horizontal phase velocity spectrum: advantage of M-transform and tips for better performance2022

    • Author(s)
      Takuji Nakamura, Masaru Kogure, Septi Perwitasari, Mitsumu K Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi, Kazuo Shiokawa
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Studies of pulsating aurorae during Arase era2022

    • Author(s)
      Keisuke Hosokawa, Yoshizumi Miyoshi, Mitsunori Ozaki, Shin-Ichiro Oyama, Yasunobu Ogawa, Satoshi Kurita, Yoshiya Kasahara et al.
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent results on ionospheric disturbances and EMIC/ELF/VLF waves obtained by ground and satellite measurements by the PWING project2022

    • Author(s)
      Kazuo Shiokawa, Claudia Martinez-Calderon, Yuichi Otsuka, Mitsunori Ozaki, and the PWING Team
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] magnetospheric physics2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Local time and seasonal variations in the D-region ionosphere: Does it reflect SSW effects?2022

    • Author(s)
      Yuma Nozaki, Hiroyo Ohya, Fuminori Tsuchiya, Kenro Nozaki, Hiroyuki Nakata and Kazuo Shiokawa
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Response of the D-region ionosphere to a X-class solar flare by OCTAVE VLF observations2022

    • Author(s)
      Masaharu Nakayama, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Kenro Nozaki and Hiroyuki Nakata
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ULF modulation of energetic electron precipitations in the D-region ionosphere in magnetically quiet time using OCTAVE VLF/LF observations2022

    • Author(s)
      Kentaro Tanaka, Hiroyo Ohya, Fuminori Tsuchiya, Kazuo Shiokawa, Yoshizumi Miyoshi, Mariko Teramoto, Kenro Nozaki, Martin Connors, and Hiroyuki Nakata
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on the longitudinal extent of QP emissions using conjugated events observed by the PWING stations2022

    • Author(s)
      Claudia Martinez-Calderon, T. Oonishi, K. Shiokawa, J. Manninen, M. Ozaki, S. Oyama, and the PWING team
    • Organizer
      10th VERSIM Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 太陽地球系現象の理解と予測を目指して2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      上出洋介先生追悼研究集会「太陽地球系現象の理解と予測を目指して」
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Results and future plan of Asia VLF observation network (AVON) toward an understanding of lightning and D-region ionosphere in Southeast Asia2022

    • Author(s)
      Hiroyo Ohya, Fuminori Tsuchiya, Yukihiro Takahashi, Kazuo Shiokawa, Alfred B. Chen, Vijak Pangsapa, Thanawat Jarupongsakul, Timbul Manik, La Ode Muhammad Musafar, Nguyen Thu Vinh
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DOI minting and data citation promoted by ISEE2022

    • Author(s)
      T. Hori, Y. Miyoshi, M. Nose, C.-W. Jun, S. Nakamura, M. Kitahara, A. Maeda, T. Segawa et al.
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Center for Heliospheric Science2022

    • Author(s)
      Y, Miyoshi, S. Masuda, T. Hori, C.-W. Jun, T. Matsumoto, S. Nakamura, H. Iijima, M. Shoji, K. Iwai, T. Segawa, A. Maeda, K. Shiokawa et al.
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Introduction on Session 5: International collaborations for space-earth environmental research from present to future2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Introduction on Panel III2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] M-transform Analysis of Gravity Waves and TIDs: Application of Horizontal Phase Velocity Spectra to Various Airglow Imaging Data2022

    • Author(s)
      Takuji Nakamura, Masaru Kogure, Septi Perwitasari, Mitsumu K. Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi and Kazuo Shiokawa
    • Organizer
      第13回極域科学シンポジウム
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Outstanding topics and predictability of the variable solar-terrestrial coupling2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      The 9Th International Seminar on Aerospace Science and Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Signatures of Auroral Potential Structure Extending Through the Near-Equatorial Inner Magnetosphere2022

    • Author(s)
      S. Imajo, Y. Miyoshi, K. Asamura, I. Shinohara, M. Nosテゥ, K. Shiokawa, Y. Kasahara, Y. Kasaba, A. Matsuoka, S. Kasahara, S. Yokota, K. Keika, T. Hori, M. Shoji, S. Nakamura, and M. Teramoto
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event analysis of three-types of optical emissions at subauroral latitudes using ground optical and radio instruments and the Arase and Van Allen Probes satellites2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama , Martin Connors, Akira Kadokura, Boris Shevtsov, Alexey Poddelsky et al.
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • 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 observations2022

    • Author(s)
      Shreedevi P.R., Yiqun Yu, Yoshizumi Miyoshi, Xingbin Tian, Sandeep Kumar, Satoko Nakamura, Chae-Woo Jun, Kazuo Shiokawa et al.
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spectral Analysis of the Phase Velocity Distribution of Mesospheric Gravity Waves and Traveling Ionospheric Disturbances in Long-Term Airglow Images at Darwin, Australia, and Sata, Japan2022

    • Author(s)
      T. Tsuboi, K. Shiokawa, Y. Otsuka, H.Fujinami, T. Nakamura, D. Neudegg
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Conjugate observation of the source region in a storm-time substorm auroral arc using the Arase satellite at L~6 on September 8, 20172022

    • 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
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Constraining the size and duration of microburst-producing chorus regions: A statistical study of low- and high- altitude observations2022

    • 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 et al.
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatio-temporal development of cosmic noise absorption at subauroral latitudes using multipoint ground-based observations2022

    • Author(s)
      Yuto Kato, Kazuo Shiokawa, Yoshimasa Tanaka, Mitsunori Ozaki, Akira Kadokura, Shin-ichiro Oyama, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Martin Connors, and Dmitry Baishev
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical analysis of wave parameters of polar-type medium-scale travelling ionospheric disturbances observed by a 630-nm airglow imager at Nyrola, Finland2022

    • Author(s)
      Masaki Sato, Kazuo Shiokawa, Shin-ichiro Oyama, Yuichi Otsuka, Arto Oksanen
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First study of ionospheric density profiles in response to EMIC-driven proton precipitation: simultaneous observations and GLOW simulations2022

    • Author(s)
      Xingbin Tian, Yiqun Yu, Longxing Ma, Jinbin Cao, Stanley C. Solomon, P. R. Shreedevi, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Yoshizumi Miyoshi
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Global Capacity Building in Space Weather Science via Summer Schools2022

    • Author(s)
      Nat Gopalswamy, Kazuo Shiokawa, Keith Groves, and Bruno Nava
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Propagation of VLF conjugated events at sub-auroral latitudes from multi-point observations in Fennoscandia and the inner magnetosphere.2022

    • Author(s)
      C. Martinez-Calderon, Y. Katoh, O. Santolik, M. Hanzelka, J. Manninen, Y. Miyoshi, Y. Kasahara, F. Tsuchiya, I. Shinohara and K. Shiokawa
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent results of the airglow measurements by the Optical Mesosphere Thermosphere Imagers (OMTIs)2022

    • Author(s)
      Kazuo Shiokawa and Yuichi Otsuka
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Study of Temporal and Spatial Variations of Plasmaspheric Total Electron Content during Geomagnetic Storms by Using the GPS Total Electron Content Data2022

    • Author(s)
      Zhiyu Chen, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Kazuo Shiokawa, Septi Perwitasari, Michi Nishioka, Fuminori Tsuchiya et al.
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of magneto-impedance sensor to geomagnetic field measurements2022

    • Author(s)
      Nose, M., H. Nomura, T. Maeda, H. Ichihara, M. Hirahara, Y. Iwanaga, T. Kawano, M. Teramoto, R. Nomura, and K. Asamura
    • Organizer
      15th Solar-Terrestrial Physics Symposium (STP-15)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Geomagnetic field measurement with Magneto-Impedance Magnetometer (MIM) onboard Loss through Auroral Microburst Pulsations (LAMP) sounding rocket2022

    • Author(s)
      Nose, M., R. Nomura, M. Teramoto, K. Asamura, Y. Iwanaga, T. Kawano, K. Hosokawa, Y. Miyoshi, and M. Hirahara
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • 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 rocket2022

    • 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, and M. Hirahara
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Application of magneto-impedance (MI) sensor to geomagnetic field measurements2022

    • Author(s)
      Nose, M., T. Kawano, and H. Aoyama
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long-term Statistical Analysis of Ionospheric Irregularities Observed by the MU Radar and Equatorial Atmosphere Radar2022

    • Author(s)
      Yokoyama, T., T. Ishii, T. Yutani, and M. Yamamoto
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Early development of shorter (3m) scale irregularities in the topside region of an Equatorial Plasma Bubble2022

    • Author(s)
      Tulasi Ram, S., K. K. Ajith, T. Yokoyama, M. Yamamoto, and K. Hozumi
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3-D Imaging of Nighttime E-F Coupling Over Japan by Using Groundbased GNSS-TEC and Ionosondes2022

    • Author(s)
      Fu, W., N. Ssessanga, T. Yokoyama, P. Liu, and M. Yamamoto
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ionospheric Structure Modeling and Diagnostics2022

    • Author(s)
      Rino, C., C. Carrano, and T. Yokoyama
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ionospheric vertical plasma drift model for the Indian and Indonesian sectors: Validation and usefulness2022

    • Author(s)
      Pavan Chaitanya, P., A. K. Patra, Y. Otsuka, T. Yokoyama, and M. Yamamoto
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ionospheric vertical ExB drift variations during sudden stratospheric warming events2022

    • Author(s)
      Pavan Chaitanya, P., A. K. Patra, Y. Otsuka, T. Yokoyama, and M. Yamamoto
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Stochastic Model for Scintillation and Total Electron Content2022

    • Author(s)
      Rino, C., C. Carrano, T. Yokoyama, L. Spogli, and A. Spogi
    • Organizer
      21st International Beacon Satellite Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical Analysis of Medium-scale Traveling Ionospheric Disturbances Over Japan Based on Deep Learning Instance Segmentation2022

    • Author(s)
      Liu, P., and Yokoyama, T
    • Organizer
      AOGS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 赤道大気レーダーで観測された150kmエコーの太陽・地磁気活動依存性2022

    • Author(s)
      横山 竜宏, 高木 理絵子, 山本 衛
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] 赤道大気レーダーで観測された150kmエコーの太陽・地磁気活動依存性2022

    • Author(s)
      横山 竜宏, 高木 理絵子, 山本 衛
    • Organizer
      第15回MUレーダー・赤道大気レーダーシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] MUレーダー観測とイオノゾンデ自動読み取りシステムを用いた電子密度の長期統計解析2022

    • Author(s)
      横山 竜宏, 増田 秀人, 劉 鵬, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] MUレーダーと赤道大気レーダーによる電離圏イレギュラリティ観測の長期統計解析,2022

    • Author(s)
      横山 竜宏, 石井 達也, 湯谷 樹生, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Study of nighttime midlatitude E-F coupling in geomagnetic conjugate regions using multi-source data2022

    • Author(s)
      傅 維正, 横山 竜宏, Nicholas Ssessanga, 馬 冠一, 山本 衛,
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2022 Annual Research Report
  • [Presentation] Sounding of E-F coupling over Japan by using ground-based GNSS TEC with a double-thin-shell approach2022

    • Author(s)
      傅 維正, 横山 竜宏, Nicholas Ssessanga, 山本 衛
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Daytime 150-km field-aligned irregularity echoes observed by a VHF radar at Chumphon, Thailand2022

    • Author(s)
      Y. Otsuka, K. Hozumi, M. Nishioka, T. Tsugawa, S. Saito, P. Supnithi, P. Jamjareegulgarn
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Zonal Asymmetry of the daytime 150-km echo observed by a VHF radar at Chumphon, Thailand2022

    • Author(s)
      Y. Otsuka, K. Hozumi, M. Nishioka, T. Tsugawa, S. Saito, P. Supnithi, P. Jamjareegulgarn
    • Organizer
      ISEA-16
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent results of the total electron content measurements for the ionospheric disturbances using global GNSS receiver networks2022

    • Author(s)
      Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Michi Nishioka, and Septi Perwitasari
    • Organizer
      AGU fall Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Current Outstanding Scientific Topics in the Solar-Terrestrial Physics2022

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      International Conference on Frontiers of Physics-2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study of longitudinal development of cosmic noise absorption and its correlation with ELF/VLF waves based on multipoint observations at subauroral latitudes during storm-time substorms on August 26-28, 20182022

    • Author(s)
      Yuto Kato, Kazuo Shiokawa, Yosimasa Tanaka, Mitsunori Ozaki, Akira Kadokura, Shin-iciro Oyama, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Martin Connors, Dimtry Baishev
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of low-cost small all-sky imagers for multi-point measurements of airglow at middle and low latitudes2022

    • Author(s)
      Kazuo Shiokawa, Kouki Kawai, Koki Nakamura, Jie Liu, Liwei Chen, Yuto Kato, Takuma Tsuboi, Yasunobu Ogawa, Keisuke Hosokawa, Shin Suzuki, Kohei Toyama, Kazuki Nomura, Yoshizumi Miyoshi, and Takeshi Sakanoi
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous observation of nighttime medium-scale traveling ionospheric disturbances using airglow imagers and the Arase satellite over 4 years2022

    • Author(s)
      Kouki Kawai, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Martin Connors, Yoshiya Kasahara, Yasumasa Kasaba, Fuminori Tsuchiya, Atsushi Kumamoto, Atsuki Shinbori, Ayako Matsuoka, Iku Shinohara, Yoshizumi Miyoshi
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event study of simultaneous observation of isolated proton auroras and Pc1 pulsations at subauroral latitudes using all-sky cameras and Van Allen Probes2022

    • Author(s)
      Kohki Nakamura, Kazuo Shiokawa, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Harlan Spence, Geoff Reeves, Herbert O. Funsten, Robert MacDowall, Charles Smith, John Wygant, and John Bonnell
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event analysis of polar-type medium-scale travelling ionospheric disturbances observed by a 630-nm airglow imager at Nyrola, Finland2022

    • Author(s)
      Masaki Sato, Kazuo Shiokawa, Shin-ichiro Oyama, Yuichi Otsuka
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spectral analysis of the phase velocity distribution of AGWs and MSTIDs in airglow images at Darwin2022

    • Author(s)
      T. Tsuboi, K. Shiokawa, Y. Otsuka, T. Nakamura, D. Neudegg
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistics and temporal development of longitudinal extent of Pc1 pulsations using seven PWING ground stations at subauroral latitudes2022

    • Author(s)
      Jie Liu, Kazuo Shiokawa, Shin-Ichiro Oyama, Yuichi Otsuka, Chae-Woo Jun, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Akira Kadokura, Mitsunori Ozaki, Martin Connors, Dmitry Baishev, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Tero Raita
    • Organizer
      15th Quadrennial Solar-Terrestrial Physics symposium (STP-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ERG連携地上観測ネットワークの現状2022

    • Author(s)
      塩川和夫、ERG連携地上観測班
    • Organizer
      第16回ERGサイエンス会議
    • Related Report
      2021 Annual Research Report
  • [Presentation] Test observations by low-cost small all-sky imagers for multi-point measurements of airglow at middle and low latitudes2022

    • Author(s)
      Kazuo Shiokawa, Yuka Yamamoto, Takumi Adachi, Kouki Kawai, Kohki Nakamura, Jie Liu, Liwei Chen, Yuto Kato, Takuma Tsuboi, Masaki Sato, Rei Sugimura, Tomoka Oonishi, Kohei Toyama, Kazuki Nomura, Yoshizumi Miyoshi, Yasunobu Ogawa, Mitsumu Ejiri et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] Spectral analysis of the phase velocity distribution of AGWs and MSTIDs in airglow images at Darwin: Preliminary comparison with airglow images at Sata, Japan2022

    • Author(s)
      Tsuboi, T., K. Shiokawa, Y. Otsuka, T. Nakamura, D. Neudegg
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] Multi-event analysis of three-types of auroras at subauroral latitudes using ground-based all-sky images and the Arase and Van Allen Probes satellites2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Martin Connors, Akira Kadokura, Boris Shevtsov, Igor Poddelsky, Craig Kletzing, Charles Smith, Robert MacDowall, Harlan Spence, Geoff Reeves, Herbert O. Funsten, Yoshizumi Miyoshi, Iku Shinohara, Yoshiya Kasahara et al.
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] Initial Results of Low-Cost Small All-Sky Imagers for Multi-Point Measurements of Airglow and Aurora2022

    • Author(s)
      Kazuo Shiokawa, Yuka Yamamoto, Takumi Adachi, Kouki Kawai, Kohki Nakamura, Jie Liu, Liwei Chen, Yuto Kato, Takuma Tsuboi, Masaki Sato, Kazuki Nomura, Yoshizumi Miyoshi, Yasunobu Ogawa, Mitsumu Ejiri, Keisuke Hosokawa, Shin Suzuki, Takeshi Sakanoi
    • Organizer
      ISEA-16
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地上光学・電波機器とあらせ衛星・Van Allen Probes衛星の同時観測に基づくサブオーロラ帯の3種類のオーロラの複数例解析2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama , Martin Connors, Akira Kadokura, Boris Shevtsov, Alexey Poddelsky, Igor Poddelsky, Nozomu Nishitani, Simon G. Shepherd, John Michael Ruohoniemi, Charles Smith, Robert MacDowall, Harlan Spence et al.
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2017年9月8日の磁気嵐中のサブストーム開始時のオーロラのあらせ衛星による観測2022

    • 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. Imajo
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2021 Annual Research Report
  • [Presentation] ISEEにおけるDOI付与及びデータ引用の推進2022

    • Author(s)
      T. Hori, Y. Miyoshi, M. Nose, C.-W. Jun, S. Nakamura, M. Kitahara, A. Maeda, T. Segawa, F. Miyake, K. Hosokawa, S. Masuda, A. Shinbori, Y. Otsuka, K. Shiokawa, K. Iwai, S. Imada, H. Iijima, T. Kaneko, K. Tsuboki, and T. Kato
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2021 Annual Research Report
  • [Presentation] Gravity wave and TID analysis using horizontal phase velocity spectrum: advantage of M-transform and tips for better performance2022

    • Author(s)
      Takuji Nakamura, Masaru Kogure, SEPTI PERWITASARI, Mitsumu K Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi, Kazuo Shiokawa
    • Organizer
      The 152 th SGEPSS General Assembly
    • Related Report
      2021 Annual Research Report
  • [Presentation] DOI minting and data citation promoted by ISEE2022

    • Author(s)
      T. Hori, Y. Miyoshi, M. Nose, C.-W. Jun, S. Nakamura, M. Kitahara, A. Maeda, T. Segawa, F. Miyake, K. Hosokawa, S. Masuda, A. Shinbori, Y. Otsuka, K. Shiokawa, K. Iwai, S. Imada, H. Iijima, T. Kaneko, K. Tsuboki, and T. Kato
    • Organizer
      The 5th ISEE Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event analysis of three-types of optical emissions at subauroral latitudes using ground optical and radio instruments and the Arase and Van Allen Probes satellites2022

    • Author(s)
      Rei Sugimura, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama , Martin Connors, Akira Kadokura, Boris Shevtsov, Alexey Poddelsky, Igor Poddelsky, Nozomu Nishitani, Simon G. Shepherd, John Michael Ruohoniemi, Charles Smith, Robert MacDowall, Harlan Spence et al.
    • Organizer
      AGU fall Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Conjugate observation of the source region in a storm-time substorm auroral arc using the Arase satellite at L~6 on September 8, 20172022

    • 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. Imajo
    • Organizer
      AGU fall Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Initial results on multi event analysis of the simultaneous observation of isolated proton auroras at subauroral latitudes by a highly sensitive all-sky camera and the Van Allen Probes satellites2021

    • Author(s)
      Kohki Nakamura, Kazuo Shiokawa, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Harlan Spence, Geoff Reeves, Herbert O. Funsten, Craig Kletzing, Robert MacDowall, Charles Smith, John Wygant, and John Bonnell
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Initial results of multi-event analysis of magnetosphere-ionosphere coupling for nighttime medium-scale traveling ionospheric disturbances2021

    • Author(s)
      Kouki Kawai, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Martin Conners, Yoshiya Kasahara, Yasumasa Kasaba, Fuminori Tsuchiya, Atsushi Kumamoto, Masafumi Shoji, Satoko Nakamura, Ayako Matsuoka, Shun Imajo, Yoichi Kazama et al.
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] A statistical study on the detachment of arc from the main auroral oval using all-sky imaging observations at Athabasca, Canada2021

    • Author(s)
      Sneha Yadav, Kazuo Shiokawa, Yuichi Otsuka, Martin Connors
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] A statistical study of longitudinal extent of Pc1 pulsations using seven PWING ground stations at subauroral latitudes2021

    • Author(s)
      Jie Liu, Kazuo Shiokawa, Shin-Ichiro Oyama, Yuichi Otsuka, Chae-Woo Jun, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Akira Kadokura, Mitsunori Ozaki, Martin Connors, Dmitry Baishev, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Tero Reita
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Outstanding scientific topics in the variable solar-terrestrial coupling and its predictability2021

    • Author(s)
      Kazuo Shiokawa
    • Organizer
      The 2nd International Symposium on Space Science
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高感度全天カメラとVan Allen Probes衛星によるサブオーロラ帯孤立プロトンオーロラの複数例同時観測2021

    • Author(s)
      中村幸暉,塩川和夫,能勢正仁,長妻努,坂口歌織, Harlan Spence, Geoff Reeves, Herbert O. Funsten, Craig Kletzing, Robert MacDowall, Charles Smith, John Wygant, and John Bonnell
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 地上とあらせ衛星による夜間中規模伝搬性電離圏擾乱の複数例同時観測2021

    • Author(s)
      川合航輝, 塩川和夫, 大塚雄一, 大山伸一郎, 門倉昭, 田中良昌, Martin Connors, Boris Shevtsov, Igor Poddelsky, 笠原禎也, 笠羽康正, 土屋史紀, 熊本篤志, 新堀淳樹, 松岡彩子, 篠原育, 三好由純
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] サブオーロラ帯における7つのPWING地上観測点を用いたPc1地磁気脈動の経度拡がりの統計解析2021

    • Author(s)
      Jie Liu, Kazuo Shiokawa, Shin-Ichiro Oyama, Yuichi Otsuka, Chae-Woo Jun, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Akira Kadokura, Mitsunori Ozaki, Martin Connors, Dmitry Baishev, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Tero Raita
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 地磁気静穏時に発生したpseudo breakupにおける電離圏変動に対する熱圏風変動2021

    • Author(s)
      Oyama, S., H. Vanhamaki, L. Cai, A. Aikio, M. Rietveld, Y. Ogawa, T. Raita, M. Kellinsalmi, K. Kauristie, B. Kozelov, A. Shinbori, , K. Shiokawa, T. T. Tsuda and T. Sakanoi
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] サブオーロラ帯の地上多点リオメータ観測に基づく2018年8月25-28日の磁気嵐中のサブストームにおける宇宙電波雑音吸収の経度広がりの研究2021

    • Author(s)
      加藤悠斗、塩川和夫、田中良昌、尾崎光紀、門倉昭、大山伸一郎、西谷望、Alexey Oinats, Vladimir Kurkin, Martin Connors、Dimtry Baishev
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Statistical study of subauroral arc detachment at Athabasca, Canada: new insights on STEVE2021

    • Author(s)
      Sneha Yadav, Kazuo Shiokawa, Yuichi Otsuka, Martin Connors
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] フィンランド・ニロラの630nm大気光イメージャによって観測された極域型の中規模伝搬性電離圏擾乱の初期解析2021

    • Author(s)
      佐藤雅紀,塩川和夫,大山伸一郎,大塚雄一
    • Organizer
      第150回地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 地上多点ネットワークに基づく超高層大気変動の緯度間結合の観測的研究計画2021

    • Author(s)
      塩川和夫、大塚雄一、西谷望、能勢正仁、野澤悟徳、大山伸一郎、吉川顕正、藤本晶子、横山竜宏、山本衛
    • Organizer
      第15回MUレーダー・赤道大気レーダーシンポジウムのお知らせ
    • Related Report
      2021 Annual Research Report
  • [Presentation] Multi-event analysis of simultaneous observation of isolated proton auroras at subauroral latitudes using highly sensitive all-sky cameras and the Van Allen Probes satellites2021

    • Author(s)
      Kohki Nakamura, Kazuo Shiokawa, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Harlan Spence, Geoff Reeves, Herbert O. Funsten, Craig Kletzing, Robert MacDowall, Charles Smith, John Wygant, and John Bonnell
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-event study of simultaneous observation of nighttime medium-scale traveling ionospheric disturbances from the ground and the Arase satellite2021

    • Author(s)
      Kouki Kawai, Kazuo Shiokawa, Yuichi Otsuka, Shin-ichiro Oyama, Akira Kadokura, Yoshimasa Tanaka, Martin Connors, Boris Shevtsov, Igor Poddelsky, Yoshiya Kasahara, Yasumasa Kasaba, Fuminori Tsuchiya, Atsushi Kumamoto, Atsuki Shinbori, Ayako Matsuoka et al.
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical study of longitudinal extent of Pc1 pulsations using seven PWING ground stations at subauroral latitudes2021

    • Author(s)
      Jie Liu, Kazuo Shiokawa, Shin-Ichiro Oyama, Yuichi Otsuka, Chae-Woo Jun, Masahito Nose, Tsutomu Nagatsuma, Kaori Sakaguchi, Akira Kadokura, Mitsunori Ozaki, Martin Connors, Dmitry Baishev, Nozomu Nishitani, Alexey Oinats, Vladimir Kurkin, Tero Raita
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ground and satellite observations of Pc1/EMIC waves at subauroral latitudes using the PWING ground stations: Results in 2020-20212021

    • Author(s)
      Shiokawa, K., K. Nakamura, J. Liu, H. Kim, and M. Ozaki
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Optical Mesosphere Thermosphere Imagers

    • URL

      https://stdb2.isee.nagoya-u.ac.jp/omti/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] ISEE Magnetometer network

    • URL

      https://stdb2.isee.nagoya-u.ac.jp/magne/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] ISEE VLF/ELF database

    • URL

      https://stdb2.isee.nagoya-u.ac.jp/vlf/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] EISCAT radar/Na lidar database

    • URL

      https://www.isee.nagoya-u.ac.jp/~eiscat/data/EISCAT.html

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] IUGONET Type-A

    • URL

      http://search.iugonet.org/list.jsp

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-04-17  

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