water_latent_heat_vaporization#
- metpy.calc.water_latent_heat_vaporization(temperature)[source]#
Calculate the latent heat of vaporization for water.
Accounts for variations in latent heat across valid temperature range.
- Parameters:
temperature (
pint.Quantity
)- Returns:
pint.Quantity
– Latent heat of vaporization
Examples
>>> from metpy.calc import water_latent_heat_vaporization >>> from metpy.units import units >>> water_latent_heat_vaporization(20 * units.degC) <Quantity(2453677.15, 'joule / kilogram')>
Notes
Assumption of constant \(C_{pv}\) limits validity to \(0\) – \(100^{\circ} C\) range.
\[L = L_0 - (c_{pl} - c_{pv}) (T - T_0)\]Eq 15, [Ambaum2020], using MetPy-defined constants in place of cited values.