ETUDE DE L’EVOLUTION CLIMATIQUE AU BURKINA FASO DE 1983 A 2012 : CAS DES VILLES DE BOBO DIOULASSO, OUAGADOUGOU ET DORI

Climate zoning of Burkina Faso let out three regions obtained from the annual average temperature and annual rainfall variously registered in the territory. In view of the importance of the effect of the selected climatic parameters (pluviometry, temperature, relative humidity, duration of sunshine and wind velocity) on local life (daily activities), a careful analysis of their evolution is planning of long-term human behavior towards environmental resources: water, vegetation, animals, energy, soil.  According to the results of the analysis of the 1983 to 2012 monthly averages of the selected parameters, we observe that, compared with the normal values 1981-2010, there is: in terms of temperatures, a strengthening of the rising trend of values in all three study regions (Bobo Dioulasso, Dori and Ouagadougou); in terms of precipitation, a drop in Bobo Dioulasso and an increase in Dori and Ouagadougou; a decrease in relative humidity and sunshine duration in the three study zones; in terms of the wind velocity, a constant evolution of the values in a general way.