Plasma Pressure Distribution of Ions and Electrons in the Inner Magnetosphere During CIR Driven Storms Observed During Arase Era

DOI Web Site Web Site 研究データあり 参考文献94件
  • Sandeep Kumar
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • Y. Miyoshi
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • V. K. Jordanova
    Space Science and Application Los Alamos National Laboratory Los Alamos NM USA
  • L. M. Kistler
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • I. Park
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • C. Jun
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • T. Hori
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • K. Asamura
    ISAS/JAXA Sagamihara Japan
  • P. R. Shreedevi
    Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
  • S. Yokota
    Osaka University Toyonaka Japan
  • S. Kasahara
    University of Tokyo Tokyo Japan
  • Y. Kazama
    ASIAA Taipei Taiwan
  • S.‐Y. Wang
    ASIAA Taipei Taiwan
  • Sunny W. Y. Tam
    Institute of Space and Plasma Sciences National Cheng Kung University Tainan Taiwan
  • Tzu‐Fang Chang
    Institute of Space and Plasma Sciences National Cheng Kung University Tainan Taiwan
  • T. Mitani
    ISAS/JAXA Sagamihara Japan
  • N. Higashio
    ISAS/JAXA Sagamihara Japan
  • K. Keika
    University of Tokyo Tokyo Japan
  • A. Matsuoka
    Kyoto University Kyoto Japan
  • S. Imajo
    Institute of Space and Plasma Sciences National Cheng Kung University Tainan Taiwan
  • I. Shinohara
    ISAS/JAXA Sagamihara Japan

書誌事項

公開日
2023-09
資源種別
journal article
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2023ja031756
公開者
American Geophysical Union (AGU)

この論文をさがす

説明

<jats:title>Abstract</jats:title><jats:p>Using Arase observations of the inner magnetosphere during 26 CIR‐driven geomagnetic storms with minimum Sym‐H between −33 and −86 nT, we investigated ring current pressure development of ions (H<jats:sup>+</jats:sup>, He<jats:sup>+</jats:sup>, O<jats:sup>+</jats:sup>) and electron during prestorm, main, early recovery and late recovery phases as a function of L‐shell and magnetic local time. It is found that during the main and early recovery phase of the storms the ion pressure is asymmetric in the inner magnetosphere, leading to a strong partial ring current. The ion pressure becomes symmetric during the late recovery phase. H<jats:sup>+</jats:sup> ions with energies of ∼20–50 keV and ∼50–100 keV contribute more to the ring current pressure during the main phase and early/late recovery phase, respectively. O<jats:sup>+</jats:sup> ions with energies of ∼10–20 keV contribute significantly during main and early recovery phase. These are consistent with previous studies. The electron pressure was found to be asymmetric during the main, early recovery and late recovery phase. The electron pressure peaks from midnight to the dawn sector. Electrons with energy of <50 keV contribute to the ring current pressure during the main and early recovery phase of the storms. Overall, the electron contribution to the total ring current is found to be ∼11% during the main and early recovery phases. However, the electron contribution is found to be significant (∼22%) in the 03–09 MLT sector during the main and early recovery phase. The results indicate an important role of electrons in the ring current build up.</jats:p>

収録刊行物

参考文献 (94)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ