What Is Saturation Mixing Ratio?
The most water vapor air could hold at a given temperature and pressure, in grams per kilogram. In technical terms: The mixing ratio of air saturated with respect to a plane water surface at a given temperature and pressure; roughly doubles for every 10 °C increase (Clausius-Clapeyron relation).
Saturation Mixing Ratio In Plain English
The most water vapor air could hold at a given temperature and pressure, in grams per kilogram.
The Technical Definition
The mixing ratio of air saturated with respect to a plane water surface at a given temperature and pressure; roughly doubles for every 10 °C increase (Clausius-Clapeyron relation).