ecCodes definition

Name:Convective available potential energyAbbreviation:capeUnit:J kg-1paramId:59

S2S details

DefinitionAmount of potential energy an air parcels acquires when lifted adiabatically from its lifting condensation level to the level of neutral bouyancy.
ValidityDaily averaged
CommentComputed from instantaneous values at 00, 06, 12 and 18Z

WMO GRIB2 definition

Parameter
Discipline0Meteorological products
Parameter Category7Thermodynamic stability indices
Parameter Number6Convective available potential energy
Level
Type of first fixed surface1Ground or water surface
Scale factor of first fixed surfaceall bits to 1Missing
Scaled value of first fixed surfaceall bits to 1Missing
Type of second fixed surface8Nominal top of the atmosphere
Scale factor of second fixed surfaceall bits to 1Missing
Scaled value of second fixed surfaceall bits to 1Missing