Characteristics of counter-Sq SFE (SFE) at the dip equator CPMN stations A05306

Y. Yamazaki, K. Yumoto, A. Yoshikawa, S. Watari, H. Utada

研究成果: ジャーナルへの寄稿学術誌査読

14 被引用数 (Scopus)

抄録

The solar flare effect (SFE) at dip equatorial latitudes sometimes shows the counter-Sq variation around local noon. In this paper, we refer to this type of SFE as SFE*. Observations obtained by the Circum-pan Pacific Magnetometer Network (CPMN) reveal some previously unknown characteristics of SFE*. Some of these features are the following: (1) the counter-Sq SFE variation is observed in limited longitude (local time) and latitude sectors (i.e., LT ≈ 1030-1300, \DipLat.\ ≲, 1.5°) (2) outside this limited region, the amplitude of SFE(Z/) and preflare S q(H) have a linear relationship (3) SFE* is observed during the significant depression of the horizontal magnetic field at dip equatorial latitudes, which indicates the presence of westward electric fields whose origin remains to be understood.

本文言語英語
論文番号A05306
ジャーナルJournal of Geophysical Research: Space Physics
114
5
DOI
出版ステータス出版済み - 5月 1 2009

!!!All Science Journal Classification (ASJC) codes

  • 宇宙惑星科学
  • 地球物理学

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