Calculates an FD8 flow accumulation raster from an input DEM.
Usage
wbt_md_inf_flow_accumulation(
dem,
output,
out_type = "specific contributing area",
exponent = 1.1,
threshold = NULL,
log = FALSE,
clip = FALSE,
wd = NULL,
verbose_mode = NULL,
compress_rasters = NULL,
command_only = FALSE
)
Arguments
- dem
Input raster DEM file.
- output
Output raster file.
- out_type
Output type; one of 'cells', 'specific contributing area' (default), and 'catchment area'.
- exponent
Optional exponent parameter; default is 1.1.
- threshold
Optional convergence threshold parameter, in grid cells; default is infinity.
- log
Optional flag to request the output be log-transformed.
- clip
Optional flag to request clipping the display max by 1 percent.
- wd
Changes the working directory. Default:
NULL
will use the value in WhiteboxTools settings, seewbt_wd()
for details.- verbose_mode
Sets verbose mode. If verbose mode is
FALSE
, tools will not print output messages. Default:NULL
will use the value in WhiteboxTools settings, seewbt_verbose()
for details.- compress_rasters
Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters. Default:
NULL
will use the value in WhiteboxTools settings, seewbt_compress_rasters()
for details.- command_only
Return command that would be executed by
system()
rather than running tool. Default:FALSE
.