This function can crop layers of Global Forest Change (
using either Geographic Administrative Units (
other user-defined polygons.
Additional arguments in
GADM are imported using
Links to the data sets are obtained using
GFCurls. Geographic extents
in both the
GADM and the
are intersected using the package function
are cropped using two functions of the
rasterize. Depending on
localization of the
GFC layers by data type
might be required. This is done
implementing the in-package
FCMosaic. This function
could be memory demanding if the extents
of the polygons used to cut the
are big (30,000 km^2). For these cases,
machines with RAM of 8 GB or greater should
be used. In unix-alike systems, the
package can implement parallel execution,
list of rasters or set of
Hansen, M. C., Potapov, P. V., Moore, R., Hancher, M., Turubanova, S. A. A., Tyukavina, A., ... & Kommareddy, A. (2013). High-resolution global maps of 21st-century forest cover change. science, 342(6160), 850-853.
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## A list of departments of Colombia is printed: dep <- FCPolygon(level = 1) head(dep) ## Two adjacent layers of GFC must be bounded together before cropping ## the GFC data using the boundaries of the the municipality of ## 'Cumaribo' in Colombia. This is automatically developed by ## FCPolygon: cumariboArea <- FCPolygon(pol = 'Cumaribo') ## The name 'Mosquera' matchs two municipalities of Colombia. A ## corresponding department should be specified in the argument 'pol' ## of FCPolygon: mosquera <- FCPolygon('Mosquera') mosqueraNarinho <- FCPolygon(pol = c('Mosquera','Narino'))
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