This survey done from a colour Infra-red Mission (1/45 000, Crau, Bouches-du-Rhône) uses aerial photographies as a link between satellites data and socio-economic data : - relation between aerial photos and satellites data : analysis of foundamental descriptors and then of the combination produced by the association of these descriptors. - relation between aerial photos and data external to remote sensign : typology of the landscapes mean to be used as a frame for the introduction of socio-economic data.Cette étude faite à partir d'une mission Infrarouge couleur au 1/45000 sur la Crau (Bouches-du-Rhône) , utilise la photographie aérienne comme outil charnière, entre données satellites et données socio-économiques : -articulations photos a...