Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa23a1902r&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA23A-1902
Physics
[2415] Ionosphere / Equatorial Ionosphere
Scientific paper
Total electron content (TEC) measured simultaneously using Global Positioning System (GPS) satellites at some locations in Nigeria during 2008-2010 was used to study the diurnal, seasonal, and annual TEC variations. These stations fall within the equatorial anomaly region. The TEC manifests spatial variation and exhibits features like the equatorial noon time bite-out, annual and semiannual variations, the equatorial ionization anomaly, and day-to-day variability. Daytime variability is compared with nighttime variability at all stations. The time of occurrence of the diurnal maximum in TEC also varies with season. Measured TEC were compared with those predicted by the International Reference Ionosphere (IRI). It was observed that IRI TEC is not in accord with those measured at about all local times.
Abdulrahim R. B.
Adeniyi J. O.
Ariyibi E. A.
Fayose R. S.
Groves Keith M.
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