relative_humidity_from_specific_humidity

metpy.calc.relative_humidity_from_specific_humidity(pressure, temperature, specific_humidity)

Calculate the relative humidity from specific humidity, temperature, and pressure.

Parameters

• pressure (pint.Quantity) – Total atmospheric pressure

• temperature (pint.Quantity) – Air temperature

• specific_humidity (pint.Quantity) – Specific humidity of air

Returns

pint.Quantity – Relative humidity

Notes

Formula based on that from [Hobbs1977] pg. 74. and [Salby1996] pg. 118.

\[relative_humidity = \frac{q}{(1-q)w_s}\]

• \(relative_humidity\) is relative humidity as a unitless ratio

• \(q\) is specific humidity

• \(w_s\) is the saturation mixing ratio

Changed in version 1.0: Changed signature from (specific_humidity, temperature, pressure)

See also

relative_humidity_from_mixing_ratio

Examples using metpy.calc.relative_humidity_from_specific_humidity

Cross Section Analysis

Isentropic Analysis

relative_humidity_from_mixing_ratio relative_humidity_wet_psychrometric