Computes the land input data in target land categories. Splitting of land categories is performed under use of internal land weights reflecting the prevalence of a certain land category in the given area.
Details
Mapping from input to target categories is achieved via a merge of a land input mapping to reference categories and a mapping between land target categories and the same reference categories. Thereby a new source or new target can be supported by supplying a map of that new input and/or target to the reference categories.
input = "witch": The "rest" category added in calcLandInput is disaggregated into
all missing land variables using the reference dataset included in mrdownscale.
Thus the following variables are added, but were not at all part of the
input scenario data: range, urban, c4ann_*, c3per_*, c3nfx_*
This allows the harmonization and downscaling pipeline to continue with a complete
dataset, but these variables should not be used or reported (at the very least
they have to be checked extensively).