Variable Threshold Computation
The Variable Threshold Computation operation helps you to prepare a threshold map that can be used in a Drainage network extraction operation.
You can base the threshold map on a height map (DEM), or on attribute values from an attribute table of a raster map with a class or ID domain (e.g. infiltration attribute values in a table linked to a geological unit map).
As a user, you have to:
When height values are used as input, you can optionally obtain an internal relief map as additional output.
For more information on the calculations that will take place, refer to Variable threshold computation : functionality.