Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms

https://doi.org/10.46481/jnsps.2020.112

Authors

  • S. O. Ikubanni Space Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, Nigeria
  • S. J. Adebiyi Space Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, Nigeria
  • B. O. Adebesin Space Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, Nigeria
  • O. S. Bolaji Department of Physics,University of Tansmania, Australia; Department of Physics, University of Lagos, Nigeria
  • B. J. Adekoya Department of Physics, Olabisi Onabanjo University, Ago-Iwoye, Ogun State
  • B. W. Joshua Department of Physics, Kebbi State University, Aleiro, Kebbi State
  • J. O. Adeniyi Space Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, Nigeria

Keywords:

Disturbance Electric Field, Equatorial ionosphere, Geomagnetic storms, GNSS

Abstract

Intense geomagnetic storms offer opportunity to understand ionospheric response to space weather events. Using Total Electron Content (TEC) data from stations along the east African sector, the two most intense storms during the 24th solar cycle, with similarly occurrence season and time were studied. We observe that ionospheric effect during the main phase is not a function of the severity of the storm, whereas the more intense storm shows greater influence on the African ionosphere during the recovery phase. Plasma movement within the equatorial ionization anomaly (EIA) was evident particularly during the recovery phase, especially during the 2015 event. For both storms, the nighttime/early morning ionospheric effect is more pronounced than the daytime effects across all stations.

 

 

Dimensions

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Published

2020-11-15

How to Cite

S. O. Ikubanni, S. J. Adebiyi, B. O. Adebesin, O. S. Bolaji, B. J. Adekoya, B. W. Joshua, & J. O. Adeniyi. (2020). Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms. Journal of the Nigerian Society of Physical Sciences, 2(4), 228–240. https://doi.org/10.46481/jnsps.2020.112

Issue

Section

Original Research