Prompt Penetration Electric Field and the Ionospheric Effects of Major Geomagnetic Storms in Low Latitude Stations

L.G. OlatunbosunDepartment of Science Technology, Federal Polytechnic, Ado-Ekiti, Ekiti State, Nigeria

Vol 6 No 3 (2022): Volume 6, Issue 3, March 2022 | Pages: 61-67

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 22-03-2022

doi Logo doi.org/10.47001/IRJIET/2022.603010

Abstract

The effect of prompt penetration electric field of high latitude origin during geomagnetic storms on total electron content (TEC) has been analyzed using GNSS data. The major storm events that occurred in 2015, with particular emphasis to events on 17 March, 22 – 23 June and 5 July was the subject of consideration. The storms started with Storm Sudden Commencement (SSC) and happened during the daytime of about 06:00, 19:00 and 16:00 UT respectively. The effects of penetration electric field during the main phase of the storms was evidence in the low latitude TEC data, as it resulted in the enhancement in TEC in Cotonu and Addis Ababa and subsequent uplift of F-layer. The penetration of electric field to Lagos low latitude resulted in depletion of TEC during the day and night enhancement. The variations in TEC were dependent on time of the day, location and the time of occurrence of the storm. Addis Ababa recorded the highest variation in TEC, followed by Cotonou station. Lagos low latitude consistently recorded the least variations in all the days considered.

Keywords

Electric Field, Geomagnetic Storms, Low-Latitude Ionosphere, Total Electron Content


Citation of this Article

L.G. Olatunbosun, “Prompt Penetration Electric Field and the Ionospheric Effects of Major Geomagnetic Storms in Low Latitude Stations” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 6, Issue 3, pp 61-67, March 2022. Article DOI https://doi.org/10.47001/IRJIET/2022.603010

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