# geocat.comp.meteorology.relhum_water#

geocat.comp.meteorology.relhum_water(temperature, mixing_ratio, pressure)#

Calculates relative humidity with respect to water, given temperature, mixing ratio, and pressure.

Definition of mixing ratio if:

• es - is the saturation mixing ratio

• ep - is the ratio of the molecular weights of water vapor to dry air

• p - is the atmospheric pressure

• rh - is the relative humidity (given as a percent)

$rh = 100 q / ( (ep*es)/(p-es) )$
Parameters
Returns

relative_humidity (numpy.ndarray) – Relative humidity. Will have the same dimensions as temperature