Calculates the enthalpy of vaporisation for converting a mass (flux) into an energy (flux). The enthalpy of vaporization refers to the amount of heat required to change a substance from liquid to vapor at constant pressure. It includes both the internal energy required to overcome intermolecular forces within the liquid and the work done against the surrounding atmosphere. Enthalpy of vaporization and latent heat of vaporization are often used interchangeably, but there is a subtle difference between them. Latent heat of vaporization, on the other hand, specifically refers to the heat required to change a unit mass of a substance from liquid to vapor at its boiling point at constant temperature. It represents the energy needed to overcome intermolecular forces alone.

calc_enthalpy_vap(tc)

Arguments

tc

Air temperature in degrees Celsius

Details

Returns the enthalpy of vaporisation (J/kg)

References

Henderson-Sellers (1984)

Davis, T. W., Prentice, I. C., Stocker, B. D., Thomas, R. T., Whitley, R. J., Wang, H., Evans, B. J., Gallego-Sala, A. V., Sykes, M. T., & Cramer, W. (2017). Simple process-led algorithms for simulating habitats (SPLASH v.1.0): Robust indices of radiation, evapotranspiration and plant-available moisture. Geoscientific Model Development, 10(2), 689–708. https://doi.org/10.5194/gmd-10-689-2017