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 Cpv limits validity to 0100C range.

L=L0(cplcpv)(TT0)

Eq 15, [Ambaum2020], using MetPy-defined constants in place of cited values.