This model uses the Hargreaves-Samani equation to estimate evapotranspiration (ET0) using only min and max daily temperature time series and latitude inputs. This method is good for sites that lack measured radiation data. Note that because this function is empirical, you should calibrate to actual measured data if possible. This model is intended to run on a 1-day time step.
Reference: http://www.zohrabsamani.com/research_material/files/Hargreaves-samani.pdf
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Model update:
This model was updated with more thorough documentation and verification testing.
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