adiabatic lapse rate
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adiabatic lapse rate
The rate at which the temperature changes as the air rises or falls without the heat being taken away from or given to the air mass. The standard adiabatic lapse rate is 3°C/1000 ft, 5.4°F/1000 ft, or 9.8°C/km when air is dry (dry adiabatic lapse rate) and 1.6°C/1000 ft, 2.7°F/1000 ft, or 5.8°C/km when air is saturated (saturated adiabatic lapse rate). See also dry adiabatic lapse rate and saturated adiabatic lapse rate.
Dry adiabatic lapse rate.
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McGraw-Hill Dictionary of Aviation
An Illustrated Dictionary of Aviation.. Copyright © 2005 by McGraw-Hill Companies, Inc. All rights reserved.
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