Resolution stored in parameter.yaml. Here, resolution values refer
to the aggregation factor or granularity. Granularity is the number of small
grid cells that are aggregated into larger grid cells in each direction
(horizontally and vertically).
For example, the finest spatial resolution of the Monfreda and MAPSPAM dataset
in geohabnet is 5 minutes, a granularity value of 6 will result in maps with
a spatial resolution of 0.5 degrees.
If not provided, the resolution value used for the analysis is by default 12
(or two degrees when using the Monfreda and MAPSPAM dataset).
Otherwise, a single integer value for granularity equal to or greater
than one should be specified.