Apply a contributing-area threshold to existing routing outputs

Source: R/synthetic_stream_network.R

Reuses resolved D8 direction and accumulation rasters. It does not condition terrain, recalculate flow direction or recalculate accumulation.

threshold_synthetic_stream_network(
  direction,
  accumulation,
  output_file,
  threshold_ha = 1
)

Arguments

direction

Existing resolved D8 direction GeoTIFF.

accumulation

Existing upstream-cell accumulation GeoTIFF.

output_file

New GeoPackage path for the thresholded network.

threshold_ha

Positive contributing-area threshold in hectares.

Value

Threshold, cell-area and vector summary evidence.