Adiabatic Lapse Rate
Weather
The rate of decrease of temperature experienced by a parcel of air when it is lifted in the atmosphere under the restriction that it cannot exchange heat with its environment. For parcels that remain unsaturated during lifting, the (dry adiabatic) lapse rate is 9.8°C per kilometer.
Climate Change
The rate of decreased temperature experienced by a parcel of air when it is lifted in the atmosphere under the restriction that it cannot exchange heat with its environment. For parcels that remain unsaturated during lifting, the dry adiabatic lapse rate is 9.8° per kilometer.
- — ARM Climate Research Glossary retrieved 2014-06-12