Will somebody help me how to calculate the approximate evaporation rate at a waterfall pond. The rate of recirculation water is @ 2,500 GPM.Ambient temperare is 85 deg. F during summer months ( wet bulb temp.),@80% relative humidity.
There are a few variables not mentioned, so the best help I can offer is a text reference - See "Engineering Hydrology - Principles and Practices" by Victor Ponce. The publisher is Prentice-Hall (ISBN 0-13-277831-9). Other texts on hydrology may have similar methods.