convective available potential energy (CAPE)

convective available potential energy (CAPE)

The maximum energy available to an ascending parcel, according to parcel theory.

On a thermodynamic diagram this is called positive area, and can be seen as the region between the lifted parcel process curve and the environmental sounding, from the parcel's level of free convection to its level of neutral buoyancy. It may be defined as

[[File:ams2001glos-Ce30.gif

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Part of Speech: noun
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Industry/Domain: Weather
Category: Meteorology
Company: AMS
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