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The behavior of electron flux was studied by examining 42 geomagnetic storms driven by Co-rotating Interaction Regions (CIR) and 48 geomagnetic storms driven by Coronal Mass Ejections (CME). This study used solar wind parameters (Nsw, Vsw, Psw), the Dst index, electron flux, and the interplanetary magnetic field southward-northward (Bz IMF) during solar cycle 24. The results indicate that the decrease in electron flux before (PRE) and during (POST) both CME-driven and CIR-driven storms is likely related to an increase in solar wind speed. For both types of storms, the decrease in electron flux generally begins almost simultaneously with the onset of the geomagnetic storm. The electron flux then starts to rise after the storm returns to normal conditions. The behavior of electron flux following both CME-driven and CIR-driven geomagnetic storms involves complex processes.

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Characterizing Radiation Belt Electron Flux Behavior During Geomagnetic Storms Driven by CMEs and CIRs

  • 会议论文

  • 发表日期：

    2025年

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  • Anwar Santoso,
  • Sismanto Sismanto,
  • Eddy Hartantyo,
  • Rhorom Priyatikanto,
  • La Ode Muhammad Musafar Kilowasit,
  • Mamat Ruhimat,
  • Fitri Nuraeni,
  • Mira Juangsih,
  • Setyanto Cahyo Pranoto,
  • Siska Filawati,
  • Dadang Nurmali,
  • Iskandar Bakri

摘要

The behavior of electron flux was studied by examining 42 geomagnetic storms driven by Co-rotating Interaction Regions (CIR) and 48 geomagnetic storms driven by Coronal Mass Ejections (CME). This study used solar wind parameters (Nsw, Vsw, Psw), the Dst index, electron flux, and the interplanetary magnetic field southward-northward (Bz IMF) during solar cycle 24. The results indicate that the decrease in electron flux before (PRE) and during (POST) both CME-driven and CIR-driven storms is likely related to an increase in solar wind speed. For both types of storms, the decrease in electron flux generally begins almost simultaneously with the onset of the geomagnetic storm. The electron flux then starts to rise after the storm returns to normal conditions. The behavior of electron flux following both CME-driven and CIR-driven geomagnetic storms involves complex processes.