African water resource database. technical manual and workbook

agua superficial aplicaciones del ordenador application des ordinateurs bases de datos bassin versant boundaries climatic data computer applications cours d'eau cursos de agua data analysis databases eau superficielle especies formation geographical information systems gestion des eaux imagerie imagery information processing limite physiographic features population density ressource en eau rivers satellite satellites soil sol species suelo surface water training traitement de l'information water management water resources watersheds