mixing ratio


mixing ratio

[′mik·siŋ ‚rā·shō] (meteorology) In a system of moist air, the dimensionless ratio of the mass of water vapor to the mass of dry air; for many purposes, the mixing ratio may be approximated by the specific humidity.

mixing ratio

As it pertains to meteorology, it is the ratio by weight of the amount of water vapor in a volume of air to the amount of dry air, expressed as grams per kilogram (parts per thousand parts by weight). Higher values of the mixing ratio imply a more humid atmosphere. For many purposes, the mixing ratio may be approximated by the specific humidity.