utils: Physical utility functions
In miquelcaceres/meteoland: Landscape Meteorology Tools

Description Usage Arguments Value Author(s) References

Set of functions used in the calculation of physical variables.

utils_airDensity(temperature, Patm)
utils_atmosphericPressure(elevation)
utils_averageDailyVP(Tmin, Tmax, RHmin, RHmax)
utils_averageDaylightTemperature(Tmin, Tmax)
utils_latentHeatVaporisation(temperature)
utils_latentHeatVaporisationMol(temperature)
utils_psychrometricConstant(temperature, Patm)
utils_saturationVP(temperature)
utils_saturationVaporPressureCurveSlope(temperature)

`temperature`	Air temperature (ºC).
`Tmin, Tmax`	Minimum and maximum daily temperature (ºC).
`RHmin, RHmax`	Minimum and maximum relative humidity (%).
`Patm`	Atmospheric air pressure (in kPa).
`elevation`	Elevation above sea level (in m).

Values returned for each function are:

utils_airDensity: air density (in kg·m-3).
utils_atmosphericPressure: Air atmospheric pressure (in kPa).
utils_averageDailyVP: average (actual) vapour pressure (in kPa).
utils_averageDaylightTemperature: average daylight air temperature (in ºC).
utils_latentHeatVaporisation: Latent heat of vaporisation (MJ·kg-1).
utils_latentHeatVaporisationMol: Latent heat of vaporisation (J·mol-1).
utils_psychrometricConstant: Psychrometric constant (kPa·ºC-1).
utils_saturationVP: saturation vapour pressure (in kPa).
utils_saturationVaporPressureCurveSlope: Slope of the saturation vapor pressure curve (kPa·ºC-1).

Miquel De Cáceres Ainsa, Centre Tecnologic Forestal de Catalunya

McMurtrie, R. E., D. A. Rook, and F. M. Kelliher. 1990. Modelling the yield of Pinus radiata on a site limited by water and nitrogen. Forest Ecology and Management 30:381–413.

McMahon, T. A., M. C. Peel, L. Lowe, R. Srikanthan, and T. R. McVicar. 2013. Estimating actual, potential, reference crop and pan evaporation using standard meteorological data: a pragmatic synthesis. Hydrology & Earth System Sciences 17:1331–1363. See also: http://www.fao.org/docrep/x0490e/x0490e06.htm

miquelcaceres/meteoland documentation built on May 8, 2019, 11:57 p.m.