Data infrastructure and geographic information system for desertification survey in Africa circum-Saharian zone : ROSELT program Conference on water observation and information system for decision support : Balwois : abstracts /Desconnets, Jean-Christophe Loireau, M. Leibovici, Didier Moyroud, N /D'herbès, Jean-Marc DESERTIFICATION PROGRAMME DE RECHERCHE SYSTEME D'INFORMATION GEOGRAPHIQUE RESEAU D'INFORMATION BASE DE DONNEES TRAITEMENT DE DONNEES ACQUISITION DE DONNEES AIDE A LA DECISION OBSERVATOIRE COOPERATION REGIONALE ECOSYSTEME ZONE ARIDE ZONE SEMIARIDE SYSTEME D'INFORMATION Commission Européenne IRD Ministry of Environment and Physical Planning /Morell, Marc (ed.) Todorovik, O. (ed.) Dimitrov, D. (ed.) Selenica, A. (ed.) Spirkovski, Z. (ed.) 2004 text https://www.documentation.ird.fr/hor/fdi:010033792 fdi:010033792 Desconnets Jean-Christophe, Loireau M., Leibovici Didier, Moyroud N, D'herbès Jean-Marc. Data infrastructure and geographic information system for desertification survey in Africa circum-Saharian zone : ROSELT program. In : Morell Marc (ed.), Todorovik O. (ed.), Dimitrov D. (ed.), Selenica A. (ed.), Spirkovski Z. (ed.), . Conference on water observation and information system for decision support : Balwois : abstracts Commission Européenne ; IRD ; Ministry of Environment and Physical Planning, 2004, 381-382 Balwois 2004 : Colloque, Ohrid (MACEDOINE), 2004/05/25-29 EN AFRIQUE SAHARA SAHEL