ETo_Hrg | R Documentation |
ETo_Hrg
returns the value of the evapotranspiration rate from the reference surface.
ETo_Hrg(T_min, T_max, R_a)
T_min |
Optional. A numeric scalar that denotes the daily minimum temperature [C]. |
T_max |
Optional. A numeric scalar that denotes the daily maximum temperature [C]. |
R_a |
A numeric scalar denotes the extraterrestrial radiation [ |
This is a function to calculate the evapotranspiration rate from the reference surface (ETo) by using Hargreaves equation.
The function returns the value of evapotranspiration rate from the reference surface calculated by Hargreaves equation [mm/day] as a numeric scalar.
ETo_FPM
for FAO Penman-Monteith Equation.
ETo_Hrg(T_min = 19, T_max = 25, R_a = 32)
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