International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

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DOI Prefix: 10.47001/IRJIET

Observed Discrepancies in International Reference Ionosphere Model Predictions at a Nigerian Low - Latitude Station

Lilian G. OlatunbosunDepartment of Science Laboratory Technology, The Federal Polytechnic, Ado–Ekiti, NigeriaAyomide O. OlabodeDepartment of Physics and Engineering Physics, Obafemi Awolowo University, Ile–Ife, NigeriaEmmanuel A. AriyibiDepartment of Physics and Engineering Physics, Obafemi Awolowo University, Ile–Ife, Nigeria

Vol 3 No 4 (2019): Volume 3, Issue 4, April 2019 | Pages: 32-39

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 07-04-2019

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Abstract

IRI–2016 and GPS derived Total Electron Content (TEC) has been analyzed for comparative results. Day–to–day, monthly, seasonal and annual variations of TEC were observed, with IRI prediction values consistently higher than the GPS measured TEC values at all segments, especially during the day time plateau and decay region. The relative deviation of measured TEC from the modeled TEC showed appreciable difference, about 70% in most cases. IRI–2016 therefore, over–estimates GPS–derived TEC in Lagos low–latitude station. Investigation of TEC variation with geomagnetic storms revealed that IRI predicted GPS measurement better during storms.

Keywords

IRI Model, GPS, Ionosphere, Total Electron Content, Low–Latitude


Citation of this Article

Citation of this article:

Lilian G. Olatunbosun, Ayomide O. Olabode, Emmanuel A. Ariyibi, “Observed Discrepancies in International Reference Ionosphere Model Predictions at a Nigerian Low – Latitude Station” Published in International Research Journal of Innovations in Engineering and Technology (IRJIET), Volume 3, Issue 4, pp 32-39, April 2019.

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
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