Calculates an FD8 flow accumulation raster from an input DEM.
fd8_flow_accumulation(dem, output,
out_type = "specific contributing area", exponent = 1.1,
threshold = NULL, log = FALSE, clip = FALSE,
verbose_mode = FALSE)
Input raster DEM file.
Output raster file.
Output type; one of 'cells', 'specific contributing area' (default), and 'catchment area'.
Optional exponent parameter; default is 1.1.
Optional convergence threshold parameter, in grid cells; default is inifinity.
Optional flag to request the output be log-transformed.
Optional flag to request clipping the display max by 1 percent.
Sets verbose mode. If verbose mode is False, tools will not print output messages.
Returns the tool text outputs.