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GRIB-API definition

Namesurface Surface air maximum temperature since previous post-processing
Abbreviationmx2t6mx2tUnitKparamIdTBD

 

UERRA details

DefinitionThe maximum temperature near the surface determined over the last six hourssince previous post-processing step.
ValidityMaximum determined over the last 6 hourssince previous post-processing step.
CommentCommentThe field will NOT be archived at forecast step 0 .It will be archived 4 times a day at 00, 06, 12 and 18Z.

Please 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.

 

WMO GRIB2 definition

Parameter
Discipline0meteorological products
Parameter Categorycategory0temperature
Parameter Numbercumber0temperature
Type of statistical processing2maximum
Length of time rangeXXX 
Level
Type of first fixed surface103 specified height level above ground (m)
Scale factor of first fixed surface0 
Scaled value of first fixed surface22 metres (might vary from one centre to another)
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