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Old 05-04-2011, 07:32 PM
Darryl G Darryl G is offline
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Join Date: May 2001
Posts: 7,964
It's not a simple calculation and you may have a hard time finding the data to calculate it. You really need a meteorological station in order to do it, and even then the best you're going to get is an estimate. You could directly measure the evaporation rate relatively easily, but that would only give you information of what it under the specific conditions at the time and would not give you transpiration. My best advice would be to try to do a search and see if you can at least find a range from already existing data/calculations.
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