Droughts (2) Sequía (2) Collectivité territoriale (2) Saison (2) Sécheresse (2) région (2) Niger (2) Dynamics (1) Deterioration (1) Variation (1) Childhood and youth (1) Cartography (1) Assaying (1) Communication (1) Acquisition (1) Couples (1) Nineteen eighties (1) Nineteen sixties (1) Time-domain analysis (1) Winds (1) Wind erosion (1) Visibility (1) Villages (1) Trails (1) Time (1) Temporal bone (1) Synthetic aperture radar (1) Sand dunes (1) Sand (1) Rain and rainfall (1)