APFIVE Watershed Rainfall Volume Calculation
A watershed spans 1000 square miles and receives an average rainfall of 2 inches per month. Given that 1 square mile equals 640 acres and 1 inch equals 1/12 foot, calculate the total volume of water in acre-feet that the watershed collects each month.
Watershed Data:
Area = 1000 square miles
Average rainfall = 2 inches/month
A
Approximately 12,000 acre-feet
B
Approximately 106,667 cubic feet
C
Approximately 106,667 acre-feet
D
Approximately 640,000 acre-feet
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