Study of the Spatio-Temporal Variability of Rainfall in the Northern Region of Senegal

Senegal is a country of the Sahel. In this region, most populations live from agro-pastoral activities. The northern zone strongly influenced by river cultures. And dynamics River are dependent on rainfall. rainfall in area very closely linked to atmosphere. study spatio-temporal variability region requires quality observation data. It includes Ferlo and valley, particular regions Louga (department Linguère included), Saint-Louis (departments Dagana Podor included) Matam. These stations have been defined since Le Borgne (1988). difficulty having rain data can be resolved using more accessible good satellite Using data, namely MSWEP, CRU, TAMSAT, ARC PERSIANN, we showed return precipitation that appeared 2000 unimodal cycle our area. were validated correlation coefficient, bias, RMSE Nash index with Regional Study Center for Improvement Adaptation Drought (CERASS). CRU then retained. Thus, made it possible show zonal distribution Senegal.