Fig. 7.From: Equatorial F2-layer variations: Comparison between F2 peak parameters at Ouagadougou with the IRI-2007 model(a) Local time and seasonal variations of percent deviations of calculated hmF2 from IRI predictions over Ouagadougou during low solar flux period of 1987. (b) Results similar to those of Fig. 7(a), but for the solar activity maximum year 1990.Back to article page