Curve number equivalences between HEC-1 and Hydrocad
Curve number equivalences between HEC-1 and Hydrocad
(OP)
I tried to make similar model to analyst a watershed using two different software (HEC-HMS and Hydrocad) to verify the results. In most case the result are not equivalents. I can use an equivalent curve number on Hydrocad to obtain similar results?





RE: Curve number equivalences between HEC-1 and Hydrocad
Curve Number
Time of Concentration
Rainfall distribution (Type II, III, etc)
Rainfall duration (e.g. 24-hours)
Rainfall depth
Unit Hydrograph (check the peak factor)
There are other possible reasons for a difference, but these are the primary suspects.
Peter Smart
HydroCAD Software
www.hydrocad.net