Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms
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 studi...
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doaj-360e3c50712844cb8652d5fe004291152020-11-25T04:09:56ZengNigerian Society of Physical SciencesJournal of Nigerian Society of Physical Sciences2714-28172714-47042020-11-012410.46481/jnsps.2020.112Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic stormsS. O. Ikubanni0S. J. Adebiyi1B. O. Adebesin2O. S. Bolaji3B. J. Adekoya4B. W. Joshua5J. O. Adeniyi6Space Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, NigeriaSpace Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, NigeriaSpace Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, NigeriaDepartment of Physics,University of Tansmania, Australia; Department of Physics, University of Lagos, NigeriaDepartment of Physics, Olabisi Onabanjo University, Ago-Iwoye, Ogun StateDepartment of Physics, Kebbi State University, Aleiro, Kebbi StateSpace Weather Group, Landmark University, P.M.B. 1001, Omu-Aran, Nigeria 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. https://journal.nsps.org.ng/index.php/jnsps/article/view/112Disturbance Electric FieldEquatorial ionosphereGeomagnetic stormsGNSS |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. O. Ikubanni S. J. Adebiyi B. O. Adebesin O. S. Bolaji B. J. Adekoya B. W. Joshua J. O. Adeniyi |
spellingShingle |
S. O. Ikubanni S. J. Adebiyi B. O. Adebesin O. S. Bolaji B. J. Adekoya B. W. Joshua J. O. Adeniyi Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms Journal of Nigerian Society of Physical Sciences Disturbance Electric Field Equatorial ionosphere Geomagnetic storms GNSS |
author_facet |
S. O. Ikubanni S. J. Adebiyi B. O. Adebesin O. S. Bolaji B. J. Adekoya B. W. Joshua J. O. Adeniyi |
author_sort |
S. O. Ikubanni |
title |
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms |
title_short |
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms |
title_full |
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms |
title_fullStr |
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms |
title_full_unstemmed |
Plasma re-distribution in the African low-latitude ionosphere during intense geomagnetic storms |
title_sort |
plasma re-distribution in the african low-latitude ionosphere during intense geomagnetic storms |
publisher |
Nigerian Society of Physical Sciences |
series |
Journal of Nigerian Society of Physical Sciences |
issn |
2714-2817 2714-4704 |
publishDate |
2020-11-01 |
description |
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.
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topic |
Disturbance Electric Field Equatorial ionosphere Geomagnetic storms GNSS |
url |
https://journal.nsps.org.ng/index.php/jnsps/article/view/112 |
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