The standard U.S. Class A evaporation land pan has an inside diameter of 47.5 in. and a depth of 10.0 in.
(A) Calculate the surface area of water in the pan in square meters.
(B) Calculate the volume of the pan in cubic meters.
(C) If the initial volume of water in the pan is 11.5 U.S. gallons, what is the depth of the water in millimeters?
(D) If after a 24-h period with no precipitation the volume of water in the pan is measured and found to be 10.2 U.S. gallons, what is the evaporation rate in millimeters/day?
(E) What would be the depth of water in millimeters?
(F) During the succeeding day there was a 3-h period of precipitation at a constant rate of 5 mm/h. Assuming that the 24-h evaporation rate calculated in step D also occurs during this 24-h period, what would be the depth of water in the pan?
(G) If there is no further rain, and no water is added to the pan, how long would it take for the water in the pan to totally evaporate, assuming the constant 24-h evaporation rate of step D?