Scholarlink

<p>A planar magnetic structure refers to a compressed and ordered region in interplanetary space where magnetic field vectors are predominantly confined to a plane. Due to enhanced plasma parameters associated with them, they play a significant role in space weather dynamics. To examine their geoeffectiveness, we investigate the impact of planar and non-planar sheaths of Interplanetary Coronal Mass Ejections on the outer radiation belt electrons, using in-situ particle data from NASA’s Van Allen Probes mission. A superposed epoch analysis on electron flux data revealed a significant reduction in electron flux during planar sheath passages as compared to non-planar sheaths, possibly driven by stronger magnetospheric compression resulting in intensifying magnetopause shadowing. Notably, electron flux levels exhibit a significant post-passage increase, surpassing pre-passage levels three days later. For the first time, the efforts taken to highlight the interplay between planar sheath-driven magnetospheric compression and radiation belt dynamics offer new insights for improving space weather forecasting.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Impact of ICME sheath planarity on Earth’s outer radiation belt

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月18日

查看全文
  • Kalpesh Ghag,
  • Ankush Bhaskar,
  • Anil Raghav,
  • Omkar Dhamane,
  • Mary Hudson,
  • Kishor Kumbhar,
  • Mariyam Karari,
  • Mohit Shah,
  • Ajay Kumar,
  • Ganesh Shitole

摘要

A planar magnetic structure refers to a compressed and ordered region in interplanetary space where magnetic field vectors are predominantly confined to a plane. Due to enhanced plasma parameters associated with them, they play a significant role in space weather dynamics. To examine their geoeffectiveness, we investigate the impact of planar and non-planar sheaths of Interplanetary Coronal Mass Ejections on the outer radiation belt electrons, using in-situ particle data from NASA’s Van Allen Probes mission. A superposed epoch analysis on electron flux data revealed a significant reduction in electron flux during planar sheath passages as compared to non-planar sheaths, possibly driven by stronger magnetospheric compression resulting in intensifying magnetopause shadowing. Notably, electron flux levels exhibit a significant post-passage increase, surpassing pre-passage levels three days later. For the first time, the efforts taken to highlight the interplay between planar sheath-driven magnetospheric compression and radiation belt dynamics offer new insights for improving space weather forecasting.