Longitudinal variability of the equatorial counter electrojet during the solar cycle 24

Gabriel Soares, Yosuke Yamazaki, Jürgen Matzka, Katia Pinheiro, Claudia Stolle, Patrick Alken, Akimasa Yoshikawa, Teiji Uozumi, Akiko Fujimoto, Atul Kulkarni

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抜粋

Ground and space-based geomagnetic data were used in the investigation of the longitudinal, seasonal and lunar phase dependence of the equatorial counter electrojet (CEJ) occurrence in the Peruvian, Brazilian, African, Indian and Philippine sectors during geomagnetically quiet days from the solar cycle 24 (2008 to 2018). We found that CEJ events occur more frequently during the morning (MCEJ) than in the afternoon (ACEJ). The highest MCEJ and ACEJ occurrence rates were observed for the Brazilian sector. Distinct seasonal dependence was found for each longitudinal sector under investigation. The lunar phase dependence was determined for the first time for the Philippine sector (longitude 125°E), and it was shown to be less pronounced than in the Peruvian, Brazilian and African sectors. We demonstrate that differences in CEJ rates derived from ground-based and satellite data can arise from the longitudinal separation between low-latitude and equatorial stations that are used to determine the signal and its consequent time delay in their sunrise/sunset times at ionospheric heights.

元の言語英語
ページ(範囲)304-319
ページ数16
ジャーナルStudia Geophysica et Geodaetica
63
発行部数2
DOI
出版物ステータス出版済み - 4 1 2019

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

これを引用

Soares, G., Yamazaki, Y., Matzka, J., Pinheiro, K., Stolle, C., Alken, P., ... Kulkarni, A. (2019). Longitudinal variability of the equatorial counter electrojet during the solar cycle 24. Studia Geophysica et Geodaetica, 63(2), 304-319. https://doi.org/10.1007/s11200-018-0286-0