R: Evapotranspiration Based on FAO Penman-Monteith Equation

# Evapotranspiration Based on FAO Penman-Monteith Equation

## Documentation for package ‘FAO56’ version 1.0

- DESCRIPTION file
- Package NEWS
- Package README

## Help Pages

FAO56-package | A package for computing the crop evapotranspiration and evapotranspiration rate from the reference surface by FAO Penman-Monteith equation
AtmPres | Atmospheric Pressure (P)
CSSRad | Clear-Sky Solar Radiation (R_so)
DD2Rad | Degree to Radian Converter
DH | Daylight Hours (N)
EarSunDis | Inverse Earth-Sun Distance (d_r)
EffPrec | Effective Monthly Precipitation (P_eff)
ETo_FPM | FAO Penman-Monteith Reference Evapotranspiration (ETo) Equation
ETo_Hrg | Hargreaves Reference Evapotranspiration (ETo) Equation
ETo_Pan | Evapotranspiration based on Pan Evaporation Method
ET_c | Crop Evapotranspiration (ET_c)
ExRad | Extraterrestrial Radiation for Daily Periods (R_a)
JulDate | Julian Date
Kc_Cereals | Crop Coefficients (Kc) of Cereals
Kc_Fibre_Crops | Crop Coefficients (Kc) of Fibre Crops
Kc_Forages | Crop Coefficients (Kc) of Forages
Kc_Fruit_Trees | Crop Coefficients (Kc) of Fruit Trees
Kc_Grapes_and_Berries | Crop Coefficients (Kc) of Grapes and Berries
Kc_Legumes | Crop Coefficients (Kc) of Legumes
Kc_Oil_Crops | Crop Coefficients (Kc) of Oil Crops
KC_Perennial_Vegetables | Crop Coefficients (Kc) of Perennial Vegetables
Kc_Roots_and_Tubers | Crop Coefficients (Kc) of Roots and Tubers
Kc_Small_Vegetables | Crop Coefficients (Kc) of Small Vegetables
Kc_Special | Crop Coefficients (Kc) of Special Areas
Kc_Sugar_Cane | Crop Coefficients (Kc) of Sugar Cane
Kc_Tropical_Fruits_and_Trees | Crop Coefficients (Kc) of Tropical Fruits and Trees
Kc_Vegetables_Cucumber_Family | Crop Coefficients (Kc) of Cucumber Family Vegetables
Kc_Vegetables_Solanum_Family | Crop Coefficients (Kc) of Solanum Family Vegetables
Kc_Wetlands_Temperate_Climate | Crop Coefficients (Kc) of Wetlands Temperate Climate
MeanRH | Mean Relative Humidity (RH_mean)
MeanTemp | Mean Daily Air Temperature (T_mean)
MSVP | Mean Saturation Vapour Pressure (e_s)
NLRad | Net Longwave Radiation (R_nl)
NRad | Net Radiation (R_n)
NSRad | Net Shortwave Radiation (R_ns)
PanCoef | Pan Coefficient (K_p)
PsyCon | Psychrometric Constant (gamma)
RelHum | Relative Humidity (RH)
SatVP | Saturation Vapour Pressure at a specific Air Temperature (e0T)
SlpSVPC | Slope of Saturation Vapour Pressure Curve (Delta)
SolDec | Solar Declination (delta)
SolRad | Solar Radiation (R_s)
SunHA | Sunset Hour Angel (omega_s)
WndSp2m | Wind Speed at the height 2 m Above Ground Surface