I have precipitation accumulation and streamflow data for the watershed. Now I know there's a rational method and a curve number method for calculating runoff coefficient. But the problem is for Q=CiA, I don't have the values for Q and i, and for the curve number method, I don't have Q and CN values. I need the runoff coefficient values for snow and rain as parameter input into SRM.
Saad Baloch
I actually solved this by using the runoff coefficient equation (C)= Total depth of runoff (R)/Total depth of precipitation (P). Then you can differentiate runoff coefficient for snow and rain by using a temperature threshold.
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