DefinitionThe temperature near the surface to which a given air parcel must be cooled at constant pressure and constant water vapour content in order for saturation to occur.
CommentPlease note that the specific height level above ground might vary from one Centre to another. The scaled value of first fixed surface given below is the one in usage at ECMWF.
Discipline= 0  
Parameter Category= 0  
Parameter Number= 6  
Type of first fixed surface= 103Type of second fixed surface= All 1's
Scale factor of first fixed surface= 0Scale factor of second fixed surface= All 1's
Scaled value of first fixed surface= 2Scaled value of second fixed surface= All 1's



Jörg UrbanCorresponds to the 2m dew point temperature at ECMWF.