TEC derived from some GPS stations in Nigeria and comparison with the IRI and NeQuick models
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Total electron content (TEC) measured simultaneously using Global Positioning System (GPS) ionospheric monitors installed at some locations in Nigeria during the year 2011 (Rz = 55.7) was used to study the diurnal, seasonal, and annual TEC variations. The TEC exhibits daytime maximum, seasonal variation and semiannual variations. Measured TEC were compared with those predicted by the improved versions of the International Reference Ionosphere (IRI) and NeQuick models. The models followed the diurnal and seasonal variation patterns of the observed values of TEC. However, IRI model produced better estimates of TEC than NeQuick at all locations.
Ionosphere , GPS , Total electron content , IRI , NeQuick
Rabiu, A.B., Adewale, A.O., Abdulrahim, R.B., Oyeyemi, E.O. (2014). TEC derived from some GPS stations in Nigeria and comparison with the IRI and NeQuick models. Advances in Space Research 53, 1290–1303.