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Energy mapping of precipitating plasmas by oblique electromagnetic wave propagation effects and auroral 4D imaging

Research Project

Project/Area Number 20H02162
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionKanazawa University

Principal Investigator

Ozaki Mitsunori  金沢大学, 電子情報通信学系, 准教授 (70422649)

Co-Investigator(Kenkyū-buntansha) 八木谷 聡  金沢大学, 電子情報通信学系, 教授 (30251937)
田中 良昌  国立極地研究所, 先端研究推進系, 准教授 (50425766)
小川 泰信  国立極地研究所, 共同研究推進系, 教授 (00362210)
細川 敬祐  電気通信大学, 大学院情報理工学研究科, 教授 (80361830)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Keywords電磁波伝搬 / オーロラ / プラズマエネルギー / 機械学習
Outline of Research at the Start

半導体の微細化と低電圧化により、宇宙の放射線動態が衛星だけでなく地上高信頼産業機器への誤作動が懸念されている。これに対し、本研究は数百keVまでの高いエネルギーを特徴づける電磁波とプラズマ共鳴現象と数keVまでの低いエネルギーを特徴づけるオーロラの明るさと高さ計測を融合させ、推定エネルギー範囲拡大を図る。そして、数百keVまでの広範囲のエネルギー分布推定を目指し、高い時空間把握力を得意とする地上リモートセンシングの技術発展を図る。

Outline of Final Research Achievements

In this study, we have developed auroral event classification using a machine learning technique, signal processing for noise reduction of natural electromagnetic waves, and calculation model for precipitating energetic particles driven by natural electromagnetic waves, to detect “temporal”, “spatial”, and “energetic” characteristics of precipitating plasmas. Based on detailed analyses of auroral phenomena, three-dimensional spatial and temporal variations of precipitating plasmas were investigated.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した学習器を用いたオーロライベント検出、信号処理による自然電磁波の雑音除去と降下プラズマのモデル計算により、自然電磁波によって散乱されたプラズマの様相を自然電磁波の伝搬特性を厳密に考慮しながら評価できるようになった。これにより、特にこれまで評価されてこなかった降下プラズマの空間変動が自然電磁波の伝搬効果を反映するものであることが明らかになった。本研究成果は、地上へ向けて降下する宇宙の高エネルギープラズマを、空間3次元+時間変動の新たな知見を与え、その学術的意義は大きい。さらに、宇宙から降下する高エネルギープラズマの地上リモートセンシングの技術発展につながる社会的意義を有する。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (25 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (17 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results)

  • [Int'l Joint Research] British Antarctic Survey(英国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Slow Contraction of Flash Aurora Induced by an Isolated Chorus Element Ranging From Lower‐Band to Upper‐Band Frequencies in the Source Region2022

    • Author(s)
      Ozaki Mitsunori、Yagitani Satoshi、Shiokawa Kazuo、Tanaka Yoshimasa、Ogawa Yasunobu、Hosokawa Keisuke、Kasahara Yoshiya、Ebihara Yusuke、Miyoshi Yoshizumi、Imamura Kousuke、Kataoka Ryuho、Oyama Shin‐ichiro、Chida Teppei、Kadokura Akira
    • Journal Title

      Geophysical Research Letters

      Volume: 49 Issue: 9

    • DOI

      10.1029/2021gl097597

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Localized mesospheric ozone destruction corresponding to isolated proton aurora coming from Earth’s radiation belt2022

    • Author(s)
      Ozaki Mitsunori、Shiokawa Kazuo、Kataoka Ryuho、Mlynczak Martin、Paxton Larry、Connors Martin、Yagitani Satoshi、Hashimoto Shion、Otsuka Yuichi、Nakahira Satoshi、Mann Ian
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1

    • DOI

      10.1038/s41598-022-20548-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatial Evolution of Wave‐Particle Interaction Region Deduced From Flash‐Type Auroras and Chorus‐Ray Tracing2021

    • Author(s)
      Ozaki Mitsunori、Inoue Tomohiro、Tanaka Yoshimasa、Yagitani Satoshi、Kasahara Yoshiya、Shiokawa Kazuo、Miyoshi Yoshizumi、Imamura Kousuke、Hosokawa Keisuke、Oyama Shin‐ichiro、Kataoka Ryuho、Ebihara Yusuke、Ogawa Yasunobu、Kadokura Akira
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126 Issue: 7

    • DOI

      10.1029/2021ja029254

    • NAID

      120007187504

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Periodicities and Colors of Pulsating Auroras: DSLR Camera Observations From the International Space Station2021

    • Author(s)
      Nanjo Sota、Hozumi Yuta、Hosokawa Keisuke、Kataoka Ryuho、Miyoshi Yoshizumi、Oyama Shin‐ichiro、Ozaki Mitsunori、Shiokawa Kazuo、Kurita Satoshi
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126 Issue: 10

    • DOI

      10.1029/2021ja029564

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnetic Conjugacy of Pc1 Waves and Isolated Proton Precipitation at Subauroral Latitudes: Importance of Ionosphere as Intensity Modulation Region2021

    • Author(s)
      Ozaki Mitsunori、Shiokawa Kazuo、Horne Richard B.、Engebretson Mark J.、Lessard Marc、Ogawa Yasunobu、Hosokawa Keisuke、Nos? Masahito、Ebihara Yusuke、Kadokura Akira、Yagitani Satoshi、Miyoshi Yoshizumi、Hashimoto Shion、Sinha Shipra、Sinha Ashwini K.、Seemala Gopi K.、Jun Chae‐Woo
    • Journal Title

      Geophysical Research Letters

      Volume: 48 Issue: 5 Pages: 1-10

    • DOI

      10.1029/2020gl091384

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Improving the Detection of Pulsating Auroral Region Using Level Set Method and Spectral Entropy Method2020

    • Author(s)
      井上 智寛、尾崎 光紀、八木谷 聡、今村 幸祐、塩川 和夫、三好 由純、片岡 龍峰
    • Journal Title

      情報処理学会論文誌

      Volume: 61 Issue: 12 Pages: 1947-1959

    • DOI

      10.20729/00208758

    • NAID

      170000184163

    • Year and Date
      2020-12-15
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurements of Magnetic Field Fluctuations for Plasma Wave Investigation by the Search Coil Magnetometers (SCM) Onboard Bepicolombo Mio (Mercury Magnetospheric Orbiter)2020

    • Author(s)
      Yagitani Satoshi、Ozaki Mitsunori、Sahraoui Fouad、Mirioni Laurent、Mansour Malik、Chanteur Gerard、Coillot Christophe、Ruocco Sebastien、Leray Vincent、Hikishima Mitsuru、Alison Dominique、Le Contel Olivier、Kojima Hirotsugu、Kasahara Yoshiya、Kasaba Yasumasa、Sasaki Takashi、Yumoto Takahiro、Takeuchi Yoshinari
    • Journal Title

      Space Science Reviews

      Volume: 216 Issue: 7

    • DOI

      10.1007/s11214-020-00734-2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 水星磁気圏におけるコーラス波動の発生領域の基礎検討2022

    • Author(s)
      近藤 岳琉, 尾崎 光紀, 八木谷 聡
    • Organizer
      2022年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ISSからのデジタルカメラを用いたオーロラ観測で得られる画像データの特徴2022

    • Author(s)
      南條 壮汰, 穂積 裕太, 細川 敬祐, 片岡 龍峰, 三好 由純, 大山 伸一郎, 尾崎光紀, 塩川 和夫, 栗田 怜
    • Organizer
      宇宙空間からの地球超高層大気観測に関する研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Studies of pulsating aurorae during Arase era2022

    • Author(s)
      K. Hosokawa, Y. Miyoshi, M. Ozaki, S.-I. Oyama, Y. Ogawa, S. Kurita, Y. Kasahara, Y. Kasaba, S. Yagitani et al.
    • Organizer
      10th VERSIM workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 自己符号化器を用いた電磁波信号からのインパルス雑音の除去性能改善2022

    • Author(s)
      平野晃宏, 尾崎光紀, 八木谷聡
    • Organizer
      第37回信号処理シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 酸素イオン帯EMIC波動による孤立陽子オーロラ直下での超相対論的電子の大気降下2022

    • Author(s)
      尾崎光紀
    • Organizer
      第57回PWING会議
    • Related Report
      2022 Annual Research Report
  • [Presentation] Pc1 周期を有する銀河雑音電波吸収2022

    • Author(s)
      尾崎光紀、橋本至音
    • Organizer
      脈動オーロラ研究集会(名古屋大学 宇宙地球環境研究所 研究集会)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Spatiotemporal and energy characteristics of wave-particle interaction regions deduced from flash aurora and isolated proton aurora2021

    • Author(s)
      尾崎光紀
    • Organizer
      国立極地研究所 宙空圏研究グループセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Auroral Computed Tomography analysis method for each aurora type2021

    • Author(s)
      Yoshimasa Tanaka, Yasunobu Ogawa, Mizuki Fukizawa, Takeshi Sakanoi, Keisuke Hosokawa, Takuo Tsuda, and Akira Kadokura
    • Organizer
      地球電磁気・地球惑星圏学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Current and future perspectives on 3D analysis of aurora2021

    • Author(s)
      Yoshimasa Tanaka, Yasunobu Ogawa, Akira Kadokura, Gustavsson Bjorn, Kauristie Kirsti, Enell Carl-fredrik, Brandstrom Urban, Sergienko Tima, Kozlovsky Alexander, Tero Raita, Mizuki Fukizawa, Takeshi Sakanoi, Keisuke Hosokawa
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 孤立プロトンオーロラの発光強度と高エネルギープロトンの共鳴エネルギー の数値計算評価2021

    • Author(s)
      橋本 至音,尾崎 光紀,八木谷 聡
    • Organizer
      2021年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] フラッシュオーロラにおけるコーラス波動の周波数帯域の影響評価2021

    • Author(s)
      千田 哲平,尾崎 光紀,八木谷 聡
    • Organizer
      2021年度電気・情報関係学会北陸支部連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Flash-type auroral model using chorus-ray tracing analysis2021

    • Author(s)
      M. Ozaki, T. Inoue, Y. Tanaka, S. Yagitani, Y. Kasahara, K. Shiokawa, Y. Miyoshi, K. Imamura, K. Hosokawa, S. Oyama, R. Kataoka, Y. Ebihara, Y. Ogawa, A. Kadokura
    • Organizer
      PWING-ERG conference and school on the inner magnetosphere
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フラッシュオーロラの時空間特性を用いたコーラス伝搬特性の推定2021

    • Author(s)
      尾崎光紀、井上智寛、田中良昌、八木谷聡、笠原禎也、 塩川和夫、 三好由純、今村幸祐、細川敬祐、大山伸一郎、 片岡龍峰、海老原祐輔、小川泰信、門倉昭
    • Organizer
      脈動オーロラ研究集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 一般化オーロラトモグラフィ法のEISCAT_3Dデータへの応用2021

    • Author(s)
      田中良昌、小川泰信、門倉昭、細川敬祐、津田卓雄、吹澤瑞希、坂野井健
    • Organizer
      EISCAT研究集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Network observations of aurora and airglow with low-cost multi-wavelength imager system2020

    • Author(s)
      Ogawa, Y., A. Kadokura, Y. Tanaka, and WMI team
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D current system of auroral vortices in the discrete arc estimated by auroral tomography and local KRM methods2020

    • Author(s)
      Yoshimasa Tanaka, Yasunobu Ogawa, Akira Kadokura, Takanori Nishiyama, Akimasa Yoshikawa, Gustavsson Bjorn, Kauristie Kirsti, Enell Carl-fredrik, Brandstrom Urban, Sergienko Tima, Kozlovsky Alexander, Tero Raita, Vanhamaki Heikki
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Network observations of aurora and airglow with low-cost multi-wavelength imager system2020

    • Author(s)
      Ogawa, Y., A. Kadokura, Y. Tanaka, and WMI team
    • Organizer
      The 11th Symposium on Polar Science
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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