climt.mass_to_volume_mixing_ratio

climt.mass_to_volume_mixing_ratio(mass_mixing_ratio, molecular_weight=None, molecular_weight_air=28.964)[source]

g/g or g/kg to mole/mole

Converts from mass mixing ratio (mass per unit mass) to volume mixing ratio (volume per unit volume)

Parameters:
  • mass_mixing_ratio (array) – The quantity to be transformed in units of \(g/g\).
  • molecular_weight (float) – The molecular weight of the gas in \(g/mol\).
  • molecular_weight_air (float,optional) – The molecular weight of dry air. If it is not provided, the value for dry air on earth (28.964 g/mol) is used.
Returns:

The volume mixing ratio of the gas.

Return type:

volume_mixing_ratio (array)

Raises:

ValueError – if the molecular weight is not provided.