Mr. Abdoul Kader SEGDA defended his thesis on January 19, 2021 at the Norbert ZONGO University in Koudougou on the topic: “Modeling of the variability of the critical frequencies foF2 during the shock activities for sunspot cycle 21 and 22 . Assessment of the predictive values of URSI and CCIR of IRI-2012 on in situ measurements at the ionosonde station in Ouagadougou ”
From left to right Dr (Senior Researcher) Emmanuel NANEMA (referee), Dr (Senior Lecturer) Jean-Louis ZERBO (examiner), Prof. Saïdou MADOUGOU (President of the Jury), Prof. Frédéric OUATTARA (Thesis Director), Dr ( Associate Professor) Bétaboalé NAON (referee),