Évolution Des Extrêmes Pluviométriques Dans La Région Du Gôh (Centre-Ouest De La Côte d’Ivoire)

Abstract

The Gôh region located in western-central Ivory Coast is a region whose economy depends mainly on agriculture, which itself is dependent on the climate. Thus, variation and climate change has a significant impact on crop yields. The objective of this work is to study the evolution of extreme rainfall on rainfall station in the region (Gagnoa station). The calculation of rainfall indices was performed with the software RclimDex. It appears from this study has the Gagnoa station, five (5) of the seven indices calculated namely, the maximum rainfall of one day height (Rx1day), the maximum total rainfall of 5 days (Rx5daiy), the days very rainy (R95) extremely rainy days (R99p) and consecutive dry days (CDD) experienced an increase. While the total annual rainfall (PRCPTOT) and consecutive wet days (CWD) declined. In general, the GOH region is experiencing a decline in rainfall and therefore an increase in dry spells during the rainy seasons.