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DefinitionDownwards thermal (long wave) radiation at the surface.
Validityaccumulated Accumulated from the beginning of the forecast
CommentThe field will be archived once a day at 00Z
GRIB 2 
Parameter
Discipline= 0 Meteorological products 
Parameter Category= 5  Long-wave radiation
Parameter Number= 3
 Downward long-wave radiation flux

 

All 1's All 's All 'sGRIB 2 and C-code for: Perturbed forecast, Control forecast, Perturbed re-forecast and Control re-forecast
Level
Type of statistical processingfirst fixed surface= 1
  Ground or water surface
Scale factor Type of first fixed surface= all bits to 1Missing
Scaled value of first Type of second fixed surface= All 1'sScale factor of first all bits to 1Missing
Type of second fixed surface= all bits to 1Missing
Scale factor of second fixed surface= all bits to 1Missing
Scaled value of first fixed surface= All 1'sScaled value of second fixed surface= all bits to 1Missing