R: Tools for Simulation of Evapotranspiration of Field Crops and Soil Water Balance

# Tools for Simulation of Evapotranspiration of Field Crops and Soil Water Balance

## Documentation for package ‘simET’ version 1.0.3

- DESCRIPTION file

## Help Pages

cal_ActualVapourPressure_for_hourly | Calculating actual vapour pressure for hourly time step
cal_ActualVapourPressure_from_dewPoint | Actual vapour pressure derived from dewpoint temperature
cal_ActualVapourPressure_from_psychrometricData | Actual vapour pressure (ea) derived from psychrometric data
cal_ActualVapourPressure_from_RHmax | Calculating actual vapour pressure derived from RHmax
cal_ActualVapourPressure_from_RHmaxAndRHmin | Actual vapour pressure derived from RHmax and RHmin
cal_ActualVapourPressure_from_RHmean | Calculating actual vapour pressure derived from RHmean
cal_afterRedistribution | Calculating the volumetric water content after redistribution
cal_airVaporPressureDeficit_meanCanopyflow | Calculating air vapor pressure deficit at the mean canopy
cal_angerFromSouth | Calculating anger from south
cal_atmosphericPressure | Calculating atmospheric pressure
cal_bulkBoundaryLayerResistance | Calculating bulk boundary layer resistance
cal_canopyPenetrationProbabilityForNetRadiation | The canopy penetration probability for net radiation
cal_canopyResistance | Calculating canopy resistance
cal_canopyTem | Calculating canopy temperature
cal_capillaryRise | Calculating capillary rise
cal_cropRoughnessLength | Calculating the crop roughness length
cal_daylightHours | Calculating Daylight hours
cal_DeepPercolation | Calculating Deep percolation
cal_Dei_for_DualKc | calculating the depletion in the topsoil layer at the end of the day
cal_DPe_for_DualKc | Deep percolation loss from the topsoil layer
cal_DPr_for_DualKc | Deep percolation loss from the root layer
cal_DP_for_singleKc | Calculating deep percolation
cal_eddyDiffusivity_Canopytop | Calculating eddy diffusivity at the canopy top
cal_eddyDiffusivity_heightZ | Calculating eddy diffusivity at height z
cal_ET0_from_PM | calculating reference evapotranspiration from Penman-Monteith method
cal_ET0_from_PM_for_daily | Calculating reference evapotranspiration from Penman-Monteith for daily
cal_ET0_from_PM_for_hourly | Calculating reference evapotranspiration from Penman-Monteith method for hourly time step
cal_extraterrestrialRadiation_for_daily | Calculating extraterrestrial radiation for daily periods
cal_extraterrestrialRadiation_for_shorter | Calculating extraterrestrial radiation for hourly or shorter periods
cal_frictionVelocity | Calculating friction velocity
cal_hourAngle | Calculating hour angle
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_Kc_max_for_DualKc | An upper limit on the evaporation and transpiration from any cropped surface
cal_Kr_for_DualKc | Dimensionless evaporation reduction coefficient
cal_latentHeatFluxesForCrop | Calculating latent heat fluxes for crop
cal_latentHeatFluxesForSoil | Calculating latent heat fluxes for soil
cal_localDolarTime | Calculating local solar time
cal_meanCanopyFlowToReferenceLevel | Calculating mean canopy flow to reference level
cal_meanSaturationVapourPressure | Calculating mean saturation vapour pressure
cal_netLongwaveRadiation | Calculating net longwave radiation Rnl
cal_netRadiation | Calculating net radiation Rn
cal_netRadiationForCrop | Calculating net radiation available to the crop
cal_netRadiationForSoil | Calculating net radiation available to the soil
cal_netRadiationForSystem | Calculating net radiation available to the system(soil and crop)
cal_netSolarRadiation | Calculating net solar (shortware radiation) Rns
cal_percolationForExcessWater | Calculating percolation for excess water
cal_psychrometriCconstant | Calculating psychrometric constant
cal_reductionFactorForE | Calculating reduction factor for evaporation
cal_reductionFactorForT | calculating reduction factor for transpiration
cal_relativeHumidity | Calculating relative humidity
cal_Rs_from_Na | Calculating Solar radiation from actual duration of sunshine
cal_saturationVapourPressure | Calculating saturation vapour pressure
cal_sensibleHeatFluxesForCrop | Calculating sensible heat fluxes for crop
cal_sensibleHeatFluxesForSoil | Calaulating sensible heat fluxes for soil
cal_skySolarRadiation_withas_bs | Calculating clear sky solar radiation with as and bs
cal_skySolarRadiation_withas_elevation | Calculating clear sky solar radiation with elevation
cal_slopeOfSaturationVapourPressureCurve | Calculating slope of saturation vapour pressure curve
cal_soilHeatFlux | Calculating Soil/ground heat flux
cal_soilHeatFlux_day | Calculating soil heat flux(G) for day/ten-day periods
cal_soilHeatFlux_general | Calculating soil heat flux (G) for general
cal_soilHeatFlux_hourly | Calculating soil heat flux(G) for hourly/shorter periods
cal_soilHeatFlux_monthly | Calculating soil heat flux(G) for monthly periods
cal_soilSurfaceResistance | Calculating soil surface resistance
cal_soilSurfaceToMeanCanopyFlow | Calculating soil surface to mean canopy flow
cal_solarDeclination | Calculating solar declination
cal_solarDeclination_in_FAO | Calculating solar declination with FAO56 method
cal_solarInclination | Calculating solar inclination
cal_solarRadiation | Calculating Solar radiation
cal_sunsetHourAngle | Calculating sunset hour angle
cal_sunsetTime | Calculating the local solar time for sunset/sunrise
cal_TemMean | calculating the mean daily air temperature
cal_TEW_for_DualKc | calculating total evaporable water
cal_totalLatentHeatFlux | Calculating total latent heat flux
cal_WaterStressCoef | Calculating water stress coefficient
cal_windSpeed_Canopy | Calculating wind speed above and within the canopies.
cal_zeroPlaneHeight | Calculating zero plane displacement height
compare_model_plot | Show the results of different models
convert_angert_to_radian | Converting angert to radian
convert_Date_to_dayofyear | Convert date to day of year
convert_degreesCelsius_to_Fahrenheit | Convert degrees Celsius to Fahrenheit
convert_Fahrenheit_to_degreesCelsius | Convert Fahrenheit to degrees Celsius
convert_Rad_unit | Convert radiation unit
convert_windSpeed_to_2m | Convert wind speed to the standard of 2m
create_modelDF | Create a csv file or a dataframe in R to store the model data
estimate_ea | Estimating missing humidity data
estimate_ET0_with_TmaxAndTmin | Estimating ET0 with Tmax and Tmin
estimate_goodnessOfFit | Calculating the goodness-of-fit indicators between measured and simulated values
estimate_LAI_for_alfalfa | Estimate LAI for alfalfa
estimate_Rs_for_islandLocations | Estimating solar radiation for island locations
estimate_Rs_from_airTemDiff | Estimating solar radiation data derived from air temperature differences
FIalfalfa | A example dataset of alfalfa under flood irrigation
Kcb_adj_for_DualKc | Adjust the recommended Kc values at the middle and late stages
linear_interpolation | linear interpolation for vector
Model_DualKc | Simulation of evapotranspiration using dual crop coefficient method
Model_single_Kc | Simulation for evapotranspiration using single crop coefficient method
Model_SW | Simulation of evapotranspiration using Shuttleworth-Wallace model
SDIalfalfa | A example dataset of alfalfa under subsurface drip irrigation