earthkit.meteo.thermo.mixing_ratio_from_specific_humidity

earthkit.meteo.thermo.mixing_ratio_from_specific_humidity(q: ArrayLike) → ArrayLike

earthkit.meteo.thermo.mixing_ratio_from_specific_humidity(q: xarray.DataArray) → xarray.DataArray

earthkit.meteo.thermo.mixing_ratio_from_specific_humidity(q: earthkit.data.FieldList) → earthkit.data.FieldList

Compute the mixing ratio from specific humidity.

Parameters:

q (array-like | xarray.DataArray) – Specific humidity (kg/kg)

Returns:

Mixing ratio (kg/kg)

Return type:

array-like | xarray.DataArray

The result is the mixing ratio in kg/kg units. The computation is based on the following definition [Wallace2006]:

\[w = \frac {q}{1-q}\]

Implementations

mixing_ratio_from_specific_humidity() calls one of the following implementations depending on the type of the input arguments:

• earthkit.meteo.thermo.array.mixing_ratio_from_specific_humidity() for array-like

• earthkit.meteo.thermo.xarray.mixing_ratio_from_specific_humidity() for xarray.DataArray

• earthkit.meteo.thermo.fieldlist.mixing_ratio_from_specific_humidity() for FieldList

The function returns an object of the same type as the input arguments.