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By Defourny P


The land cover mapping of the Democratic Republic of Congo has always been considered as an outstanding challenge because of its important cloud cover, its limited accessibility, its equatorial localization, and its extended territory. Up to recently, no cartographic document presented the state of the land cover of this country in an exhaustive way. Very recently, in the framework of the AFRICOVER program, a land cover map of the DRC has been produced based on visual interpretation of Landsat images acquired at different years and different seasons, by several experts. While providing a great deal of details, the production of such a map encounters some difficulties because of the heterogeneity of the acquisition dates, images and interpretation from one scene to another. The objective of this study is to demonstrate an alternative mapping strategy based on high temporal resolution data to produce a spatially consistent and easily updated land cover map covering all the Congo territory. Seasonal and annual satellite image composites have been generated from SPOT VEGETATION temporal series acquired during the year 2000. The compositing procedure used, i.e. the mean compositing strategy, provides cloud-free and spatially consistent colour composites as never realized before. Based on th

Year: 2011
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