Dry adiabatic lapse rate (DALR)

The dry adiabatic lapse rate is the rate of temperature decrease with height for a parcel of dry or unsaturated air rising under adiabatic conditions.

Source: National Wildfire Coordinating Group. 2012. Glossary of Wildland Fire Terminology. PMS 205. Accessed on 9 September 2013. Available at http://www.nwcg.gov