Mathematics – Probability
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3804404f&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 4, CiteID L04404
Mathematics
Probability
1
Global Change: Remote Sensing (1855, 4337), Biogeosciences: Agricultural Systems, Biogeosciences: Biogeochemical Cycles, Processes, And Modeling (0412, 0793, 1615, 4805, 4912)
Scientific paper
This paper presents a methodology for the creation of a cropland map for Africa through the combination of five existing land cover products: GLC-2000, MODIS Land Cover, GlobCover, MODIS Crop Likelihood and AfriCover. A synergy map is created in which the products are ranked by experts, which reflects the likelihood or probability that a given pixel is cropland. The cropland map is then calibrated with national and sub-national crop statistics using a novel approach. Preliminary validation of the map was undertaken and the results are presented. The resulting cropland map has an accuracy of 83%, which is higher than the accuracy of any of the individual maps. The cropland map is freely available at agriculture.geo-wiki.org.
Bun Andriy
Fritz Steffen
Hansen Matt
Liu Junguo
McCallum Ian
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