relative_humidity_from_dewpoint#

metpy.calc.relative_humidity_from_dewpoint(temperature, dewpoint)[source]#

Calculate the relative humidity.

Uses temperature and dewpoint to calculate relative humidity as the ratio of vapor pressure to saturation vapor pressures.

Parameters:
Returns:

pint.Quantity – Relative humidity

Examples

>>> from metpy.calc import relative_humidity_from_dewpoint
>>> from metpy.units import units
>>> relative_humidity_from_dewpoint(25 * units.degC, 12 * units.degC).to('percent')
<Quantity(44.2484765, 'percent')>

Notes

\[RH = \frac{e(T_d)}{e_s(T)}\]

Changed in version 1.0: Renamed dewpt parameter to dewpoint

Examples using metpy.calc.relative_humidity_from_dewpoint#

Hydrostatic Thickness

Hydrostatic Thickness

Sounding Calculation Examples

Sounding Calculation Examples