ressource en eau (1) état (1) satellite (1) ruissellement (1) fleuve (1) télédétection (1) région (1) province (1) surveillance (1) gestion (1) information (1) hydrologie (1) débit (1) captage (1) abords (agglomération) (1) index (1) Afrique (1) Dynamics (1) Monitoring (1) Area (1) Identification (1) States (1) Area (1) Watersheds (1) Water (1) Variations (1) Synthetic aperture radar (1) South Africa (1) Runoff (1) Rivers (1)