Mixing Ratio

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Mixing Ratio

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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. In terms of the pressure p and vapor pressure e, the mixing ratio w is

w = (0.6222 e) / (p - e) Compare absolute humidity, relative humidity, dew point.

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References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use