Spatial distribution of DWB model parameters in Sogamoso River basin
gru_mapslist and raster
a vector with alpha1 values for each GRU
a vector with alpha2 values for each GRU
a vector with Smax values for each GRU
a vector with d values for each GRU
a raster with alpha1 values for each GRU
a raster with alpha2 values for each GRU
a raster with Smax values for each GRU
a raster with d values for each GRU