The lapse rate refers to the rate at which atmospheric temperature decreases as altitude increases. The average lapse rate in the troposphere is about 6.5°C per 1,000 meters (or 3.6°F per 1,000 feet). There are different types, such as: Environmental Lapse Rate (ELR) – actual rate in the atmosphere Dry Adiabatic Lapse Rate (DALR) – for unsaturated air Moist Adiabatic Lapse Rate (MALR) – for saturated air
The rate at which temperature decreases with increasing altitude is known as the:
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