Hi everyone,
I got a question about the calculataion of Volume of captured run off;
In the formula,(V= P.A.R/12) P value is taken according to the location of project ; humid ,semi arid and arid.which in his case can be 0,5 0,75 or 1 inch.
my confusion starts right at that point: the avarage rainfall i have had calculated in my project zone is 26 inches; so does that qualify me as a semi arid watershed where my p value is 0.75 inches? or would my P value be different ?