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- 7a4c13fb-3f2d-49d9-9158-ed84743355fc type Concept @default.
- 7a4c13fb-3f2d-49d9-9158-ed84743355fc broader 08fd82a1-4370-46a2-82ea-94c0f91498a7 @default.
- 7a4c13fb-3f2d-49d9-9158-ed84743355fc definition "Path = ['ATMOSPHERIC PRESSURE', 'ATMOSPHERE', 'EARTH SCIENCE', 'Science Keywords'] Air mass/density is a fundamental property of atmosphere. Mixture of gases forming Earth's atmosphere, consisting of nitrogen (∼78%), oxygen (∼21%), water vapor, and other trace gases such as carbon dioxide, helium, argon, ozone, or various pollutants. The concentration of water vapor is very variable, being a strong function of temperature and, hence, altitude in the atmosphere. Dry air is referred to as air from which measurable amounts of water vapor have been physically removed. Pure, dry air has a density of 1.293 kg m−3 at a temperature of 273 K and a pressure of 101.325 kPa. Apart from the variability of water vapor, the composition of air is essentially constant to an altitude of at least 50 km." @default.
- 7a4c13fb-3f2d-49d9-9158-ed84743355fc inScheme concept_scheme @default.
- 7a4c13fb-3f2d-49d9-9158-ed84743355fc prefLabel "AIR_MASS_DENSITY" @default.