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Volume 35, issue 3
Ann. Geophys., 35, 701–710, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: The 14th International Symposium on Equatorial Aeronomy

Ann. Geophys., 35, 701–710, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 06 Jun 2017

Regular paper | 06 Jun 2017

Studying the variability in the diurnal and seasonal variations in GPS total electron content over Nigeria

Victor Adetayo Eyelade et al.
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Cited articles  
Adebesin, B. O., Rabiu, A. B., Adeniyi, J. O., and Amory-Mazaudier, C.: Nighttime morphology of vertical plasma drifts at Ouagadougou during different seasons and phases of sunspot cycles 20–22, J. Geophys. Res.-Space Physics, 120, 10020–10038,, 2015.
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Akala, A. O., Doherty, P. H., Valladares, C. E., Carrano, C., and Sheehan, R.: Statistics of GPS scintillations over South America at three levels of solar activity, Radio Sci., 46, RS5018,, 2011.
Akala, A. O., Doherty, P. H., Carrano, C. S., Valladares, C. E., and Groves, K. M.: Impacts of ionospheric scintillations on GPS receivers intended for equatorial aviation applications, Radio Sci., 47, RS4007,, 2012.
Akala, A. O., Rabiu, A. B., Somoye, E. O., Oyeyemi, E. O., and Adeloye, A. B.: The Response of African equatorial GPS-TEC to intense geomagnetic storms during the ascending phase of solar cycle 24, J. Atmos. Sol.-Terr. Phy., 98, 50–62, 2013.
Publications Copernicus
Short summary
The study examined the diurnal and seasonal variations in total electron content (TEC) over Nigeria. The derived GPS TEC across all the stations demonstrated consistent minimum diurnal variations during the pre-sunrise hours, increased with a sharp gradient during the sunrise period, attained a postnoon maximum at about 14:00 LT, and then fell to a minimum just before sunset. The seasonal variation depicted a semi-annual distribution with higher values around equinoxes than solstices.
The study examined the diurnal and seasonal variations in total electron content (TEC) over...