Afrique de l'Ouest (1) satellite (1) bassin de retenue (1) télédétection (1) région (1) surveillance (1) cheptel sur pied (1) lac (1) irrigation (1) in situ (1) eau potable (1) comparaison (1) Afrique (1) Monitoring (1) Comparison (1) Area (1) Methods (1) Environmental sciences (1) Area (1) Work (1) Water (1) Values (1) Scarcity (1) Sahel (1) Reservoirs (1) Remote sensing (1) Pleiades (1) Play (1) Performance (1) Missions (1)