relative_humidity_from_specific_humidity

metpy.calc.relative_humidity_from_specific_humidity(specific_humidity, temperature, pressure)[source]

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

Parameters:
  • specific_humidity (pint.Quantity) – Specific humidity of air
  • temperature (pint.Quantity) – Air temperature
  • pressure (pint.Quantity) – Total atmospheric pressure
Returns:

pint.Quantity – Relative humidity

Notes

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

\[RH = \frac{q}{(1-q)w_s}\]
  • \(RH\) is relative humidity as a unitless ratio
  • \(q\) is specific humidity
  • \(w_s\) is the saturation mixing ratio

See also

relative_humidity_from_mixing_ratio()

Examples using metpy.calc.relative_humidity_from_specific_humidity