Computes the equivalent intensity in watershed inches per hour for a given
value of discharge in cubic-feet-per-second (CFS) and a given drainage area
in square feet (FT^2)
To convert acres into square feet multiply acres by 43,560.
Area(ft^2) = Area(acres)*43,460(ft^2/acre)
Calculates watershed inches from:
I = (Q/A)*3600*12
where:
A is drainage area in square feet
Q is discharge in CFS
I is intensity in IN/HR
3600 converts seconds into hours
12 converts feet into inches