Percent cropland coverage for sub-Saharan Africa

The dataset contains a cropland percent coverage map for Africa created through the combination of five existing land cover products: GLC-2000, MODIS Land Cover, GlobCover, MODIS Crop Likelihood and AfriCover. A synergy map was created in which the products are ranked by experts, which reflects the likelihood or probability that a given pixel is cropland. The cropland map was calibrated with national and sub-national crop statistics using a novel approach. Preliminary validation of the map was undertaken. The resulting cropland map has an accuracy of 83%, which is higher than the accuracy of any of the individual maps. The cropland percent coverage map for Africa is available for overlay on Google Earth or for download at agriculture.geo-wiki.org. The Erdas Imagine (.img) format is described at gdal.org (stable link to document hdl:10013/epic.37579.d001). Map in GeoTIFF-format see "Other version"; the format is described at gdal.org. Supplement to: Fritz, Steffen; You, Liangzhi; Bun, Andriy; See, Linda; McCallum, Ian; Schill, Christian; Perger, Christoph; Liu, Junguo; Hansen, Matt; Obersteiner, Michael (2011): Cropland for sub-Saharan Africa: A synergistic approach using five land cover data sets. Geophysical Research Letters, 38, L04404, 6 pp