GUIBULA Karim

Publications (2)

Analytical Modeling of VTEC and STEC via Altitudinal Integration of Solar Radiation Power Density

Segda Abdoul Kader, Kaboré Salfo, GUIBULA Karim, Nanéma Emmanuel & Segda Bila Gerard · Current Journal of Applied Science and Technology · 2026

This article focuses on determining VTEC and STEC values at any geographic location. This determination is achieved not through satellite data, but via a robust theoretical framework. The method employed involved developing a formula for electron volume density. This density is...

Open access Research Article 10.9734/cjast/2026/v45i64700

Variation of the Critical Frequency of the Ionospheric F2 Layer during Moderate Geomagnetic Conditions: A Study Using Data from the Ouagadougou Ionosonde Station Across Solar Cycles 21 and 22

DIABATE Abidina, SAWADOGO Wambi Emmanuel, GUIBULA Karim & Ouattara Frédéric · Current Journal of Applied Science and Technology · 2025

This study investigates the variations in the critical frequency of the F2 layer (foF2) at the Ouagadougou ionosonde station during moderate geomagnetic activities, focusing on corotating and magnetic cloud events across the minimum and maximum phases of solar cycles 21 and 22. T...

Open access Research Article 10.9734/cjast/2025/v44i14477