ecCodes definition

Name:Potential temperatureAbbreviation:ptUnit:KparamId:3

TIGGE details

DefinitionThe temperature that an unsaturated parcel of dry air would have if brought adiabatically and reversibly from its initial state to a standard pressure p_o, typically 1000 hPa.
ValidityInstantaneous
Comment

WMO GRIB2 definition

Parameter
Discipline0Meteorological products
Parameter Category0Temperature
Parameter Number2Potential temperature
Level
Type of first fixed surface109Potential Vorticity Surface
Scale factor of first fixed surface6
Scaled value of first fixed surface2
Type of second fixed surfaceall bits to 1
Missing
Scale factor of second fixed surfaceall bits to 1Missing
Scaled value of second fixed surfaceall bits to 1Missing