HIGHLIGHTING SEASONAL ANOMALY IN IONOSPHERE DURING MINIMUM AND MAXIMUM SOLAR CYCLE PHASES

Ionosphere is the part of atmosphere where waves reflect for telecommunication because of its concentration in particles. The morphology of ionosphere layer is not uniform. The density in particles in this layer varies from daytime to nighttime, from winter to summer, via spring and autumn. Time parameter and solar activity also influence this variation. This study is focused on the electron density in ionosphere layer during minimum and maximum of solar cycle 22, at Ouagadougou station. It uses International Reference Ionosphere model. The seasonal peak of electron density and total electron content parameters are carried out by running the 2012-version of the model. Comparison from winter to summer shows out a decrease of the peak of electron density and total electron content in ionosphere. Winter anomaly is highlighted by the time profiles of these two parameters. This correlates with previous results found by other authors.