Runoff Fraction

For catchments simulated with the Rainfall Runoff version of the Simplified Coefficient Method, the Runoff Flow Routing specifies the fraction of runoff generated by the catchment that is sent to each runoff flow destination. These flows must sum to 100% since they are a fraction of outflow.

For catchments that use the Soil Moisture, MABIA or Plant Growth methods and have runoff to more than one surface water node or more than one groundwater node, you will need to specify the Surface Runoff Fraction or the Groundwater Infiltration Fraction to apportion the flow among the various destination.  The surface runoff shares and the groundwater infiltration shares must each sum to 100%.

Entered on: Data View, Branch: Supply and Resources \ Runoff and Infiltration, Tab: Runoff Fraction