Calculate Base Flow Index (BFI) map from soil (HOST) map

Calculate Base Flow Index (BFI) map from soil (HOST) map

RegionalisedBFIdominant(soil, catchment, lookupTable)

Arguments

soil

filename of a raster containing the dominant soil classes (HOST).

catchment

SpatialPolygonsDataFrame containing a single catchment boundary to be used as mask to crop the raster.

lookupTable

A dataframe containing as many rows as the number of soil classes and at least two columns (named "HOSTclass" and "BFIHOST").

Value

Regionalised BFI number for a given catchment, this is in the range [0,1] and is calculated only using dominant soil classes.

Examples

## Not run: ------------------------------------
#   # Load Plynlimon sub-catchments spatial polygons data frame
#   data("PlynlimonSUBCATCHMENTS")
#   # Load soil map (HOST dominant classes)
#   data("PlynlimonSOILdominant")
#   # Load lookup table
#   data("S1")
# 
#   bfi <- RegionalisedBFIdominant(soil = PlynlimonSOILdominant,
#                          catchment = PlynlimonSUBCATCHMENTS[1,],
#                          lookupTable = S1)
## ---------------------------------------------