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Monitoring natural disasters and 'hot spots' of land cover change with SPOT Vegetation data to assess regions at risks / F. Lupo (2001)

Public contenu dans Observing our environment from space / G. Begni (2002) Titre : Monitoring natural disasters and 'hot spots' of land cover change with SPOT Vegetation data to assess regions at risks Type de document : Article/Communication Auteurs : F. Lupo, Auteur ; I. Reginster, Auteur ; Eric F. Lambin, Auteur Editeur : Lisse et Amsterdam : Balkema (August Aimé) Année de publication : 2001 Conférence : EARSeL 2001, 21st international symposium, Observing our environment from space : news solutions for a new millennium 14/05/2001 16/05/2001 Paris France Importance : pp 333 - 336 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Afrique (géographie politique) [Termes IGN] catastrophe naturelle [Termes IGN] déboisement [Termes IGN] détection de changement [Termes IGN] Europe (géographie politique) [Termes IGN] image SPOT-Végétation [Termes IGN] incendie de forêt [Termes IGN] inondation [Termes IGN] occupation du sol [Termes IGN] risque naturel [Termes IGN] sécheresse [Termes IGN] surveillance écologique Résumé : (Auteur) The impact of global change on land surface attributes will not be uniformly distributed geographically. Changes in land surface attributes have major implications for ecosystem processes, geochemical cycles and society. Assessing the regions “at risk” of rapid land-cover changes and/or natural disasters is therefore a priority for global change research and for policies aimed at mitigating the impact of these changes. The paper describes a change detection technique based on the multi-temporal changevector to two years of SPOT VEGETATION data. The main processes detected are related to droughts, floods and deforestation. The study was extended to Europe and the whole of Africa over a time period from May 1998 to April 2000. Continental scale maps of change in surface attributes were generated over the growing seasons of every biome. Finally, a validation of the change patches identified allows us to interpret the type of change and their environmental significance. Numéro de notice : C2001-037 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64945