mixing_ratio_from_relative_humidity

metpy.calc.mixing_ratio_from_relative_humidity(relative_humidity, temperature, pressure)

Calculate the mixing ratio from relative humidity, temperature, and pressure.

Parameters

• relative_humidity (array_like) – The relative humidity expressed as a unitless ratio in the range [0, 1]. Can also pass a percentage if proper units are attached.

• temperature (pint.Quantity) – Air temperature

• pressure (pint.Quantity) – Total atmospheric pressure

Returns

pint.Quantity – Dimensionless mixing ratio

Notes

Formula adapted from [Hobbs1977] pg. 74.

$$w = (RH)(w_s)$$

• $w$ is mixing ratio

• $RH$ is relative humidity as a unitless ratio

• $w_s$ is the saturation mixing ratio

See also

relative_humidity_from_mixing_ratio(), saturation_mixing_ratio()