| cal_ActualVapourPressure_from_RHmean | Calculating actual vapour pressure derived from RHmean |
| cal_atmosphericPressure | Calculating atmospheric pressure |
| cal_ET0 | Calculating reference evapotranspiration from Penman-Monteith for daily |
| cal_ET0_from_PM | calculating reference evapotranspiration from Penman-Monteith method |
| cal_extraterrestrialRadiation_for_daily | Calculating extraterrestrial radiation for daily periods |
| cal_FC | calculating field capacity |
| cal_inverseRelativeDistance_Earth_sun | Calculating inverse relative distance Earth-sun |
| cal_Kcend_for_singleKc | Crop coefficient for the end of the late season stage |
| cal_Kcini_for_SingleKc | Calculating Kcini value |
| cal_Kcmid_for_singleKc | Crop coefficient for the mid-season stage |
| cal_meanSaturationVapourPressure | Calculating mean saturation vapour pressure |
| cal_netLongwaveRadiation | Calculating net longwave radiation Rnl |
| cal_netRadiation | Calculating net radiation Rn |
| cal_netRain | calculating the net rain |
| cal_netSolarRadiation | Calculating net solar (shortware radiation) Rns |
| cal_PET | Calculation of potential evaporation and potential transpiration |
| cal_psychrometriCconstant | Calculating psychrometric constant |
| cal_Red_PETc | calculating reduction rate for Potential transpiration |
| cal_Red_PETs | calculating reduction rate for Potential evaporation |
| cal_Sat | calculating Soil saturated water content |
| cal_saturationVapourPressure | Calculating saturation vapour pressure |
| cal_skySolarRadiation_withas_elevation | Calculating clear sky solar radiation with elevation |
| cal_slopeOfSaturationVapourPressureCurve | Calculating slope of saturation vapour pressure curve |
| cal_solarDeclination_in_FAO | Calculating solar declination with FAO56 method |
| cal_sunsetHourAngle | Calculating sunset hour angle |
| cal_WP | calculating wilting point |
| convert_angert_to_radian | Converting angert to radian |
| convert_degreesCelsius_to_Fahrenheit | Convert degrees Celsius to Fahrenheit |
| linear_interpolation | linear interpolation for vector |
| plot_result | Graphically display the output results of the model |
| SIalfalfa | A example dataset of alfalfa under flood irrigation |
| soilwatr | Simulation of soil water flow in different soil layers |