basinmerge | R Documentation |
basinmerge
merges adjoining basins if the height differences between the
bottom of the basin and the pour point is less than than that
specified by boundary
.
basinmerge(dem, basins, boundary)
dem |
a raster object, two-dimensional array or matrix of elevations. |
basins |
a raster object, two-dimensional array or matrix with basins numbered as integers as returned by |
boundary |
a single numeric value. Basins seperated by boundaries below this height are merged (should have same units as |
If dem
is a raster object, then a raster object is returned.
If the differences in height between the pour-point and bottom of the basin is
less than that specified by boundary
the basin is merged with basin to which
water or air would pour.
a raster object, two-dimensional array or matrix with basins numbered as integers.
library(raster)
basins2 <- basinmerge(dtm100m, basins100m, 1)
par(mfrow=c(1, 2))
plot(basins100m, main = "Basins")
plot(basins2, main = "Merged basins")
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