Local definition 14: Brightness temperature

Octets Key Type Contents
41 localDefinitionNumber unsigned ECMWF local GRIB use definition identifier. 14 = Brightness temperature.
42 class codetable Class
43 type codetable Type
44-45 stream codetable Stream
46-49 experimentVersionNumber ksec1expver Version number or experiment identifier. (4 ASCII characters, right justified)
50 perturbationNumber unsigned As for MARS labelling (eg set to zero, or ensemble forecast number if appropriate)
51 numberOfForecastsInEnsemble unsigned As for MARS labelling (eg set to zero, or total number in ensembles if appropriate)
52 channelNumber unsigned Channel number
53-56 scalingFactorForFrequencies unsigned Integer scaling factor applied to frequencies in following list of frequency definitions (4-byte integer)
57 numberOfFrequencies unsigned Total number of frequencies (Nf)
58-60 Spare (set to zero)
61->(60+Nf*4) listOfScaledFrequencies unsigned List of Nf scaled frequencies (4-byte integers)
(61+Nf*4)->1080 Spare (set to zero)