KSEC1 element Contents GRIB octet Recommended GRIB_API key Coded GRIB_API keys Comments
37 
ECMWF local GRIB use definition identifier.
25 = 4DVar model errors
 41 localDefinitionNumber localDefinitionNumber
38 Class 42 class marsClass
39 Type=35(model errors) 43 type marsType
40 Stream 44-45 stream marsStream
41 
Version number or experiment identifier.
(4 ASCII characters, right justified)
 46-49 expver experimentVersionNumber
42 
Component index
 50 number
 componentIndex
43 
Number of components
 51 numberOfComponents
 numberOfComponents
44 
Model error type:
  1 - Full state
  2 - Forcing
  3 - Model Bias
 52 modelErrorType
 modelErrorType