Virtual Temperature
Weather
The virtual temperature is the temperature a parcel which contains no moisture would have to equal the density of a parcel at a specific temperature and humidity.
Climate Change
The virtual temperature Tv = T(1 + rv/ε), where rv is the mixing ratio, and ε is the ratio of the gas constants of air and water vapor, ≈ 0.622.
- — ARM Climate Research Glossary retrieved 2014-06-12