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Meteorological Glossary
Absolute Temperature
A temperature scale with a freezing point of +273°K (Kelvin) and a boiling point of +373°K. Related term: Kelvin Temperature Scale
AIR
This is considered the mixture of gases that make up the earth\'s atmosphere. The principal gases that compose dry air are Nitrogen (N2) at 78.09%, Oxygen (O2) at 20.946%, Argon (A) at 0.93%, and Carbon Dioxide (CO2) at 0.033%. One of the most important constituents of air and most important gases in meteorology is water vapor (H2O). For more on meteorological Glossary go to http://www.weather.com/glossary