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I. S. Batista and M. A. Abdu, “Ionospheric Variability at Brazilian Low and Equatorial Latitudes: Comparison between Observations and IRI Model,” Advances in Space Research, Vol. 34, No. 9, 2004, pp. 1894-1900.
http://dx.doi.org/10.1016/j.asr.2004.04.012

has been cited by the following article:

• TITLE: foF2 Diurnal Variability at African Equatorial Stations: Dip Equator Secular Displacement Effect

  AUTHORS: Doua A. Gnabahou, Frédéric Ouattara, Emmanuel Nanéma, François Zougmoré

  KEYWORDS: Dip Angle; foF2; Diurnal Variability; Solar Cycle Phase

  JOURNAL NAME: International Journal of Geosciences, Vol.4 No.8, October 18, 2013

  ABSTRACT: The paper goal is to analyze the variability of foF2 at African equatorial stations and the effect of dip angle on this variability. The gap between the dip angle of Dakar and Ouagadougou is superior to that between Djibouti and Ouagadougou. The trend of the dip angle at Ouagadougou and Dakar decreases while that of Djibouti increases. The relative position of the station with respect to the equator and the trend sign explains the difference observed in foF2 variability at Dakar station and at the two other stations. At Djibouti and Ouagadougou, foF2 exhibits noon bite out profile during all solar cycle phases while at Dakar observed profile is dome or plateau during the maximum and the predominance afternoon peak for the other solar cycle phases.