watershed {terra} | R Documentation |
Catchment delineation
Description
delineate the area covered by a catchment from a SpatRaster with flow direction and a pour-point (catchment outlet).
Usage
## S4 method for signature 'SpatRaster'
watershed(x, pourpoint, filename="",...)
Arguments
x |
SpatRaster with flow direction. See |
pourpoint |
matrix or SpatVector with the pour point location |
filename |
character. Output filename |
... |
additional arguments for writing files as in |
Value
SpatRaster
Author(s)
Ezio Crestaz, Emanuele Cordano, Roman Seliger
Examples
elev <- rast(system.file('ex/elev_vinschgau.tif', package="terra"))
flowdir <- terrain(elev, "flowdir")
## pour point at Naturns
pp <- cbind(653358.3, 5168222)
w <- watershed(flowdir, pp)
[Package terra version 1.8-5 Index]