KSEC1 element | Contents | GRIB octet | Recommended GRIB_API key | Coded GRIB_API keys | Comments
--- | --- | --- | --- | --- | ---
37 |
    ECMWF local GRIB use definition identifier.
    50 = Member state data
| 41 | localDefinitionNumber | localDefinitionNumber |
38 | Class | 42 | class | marsClass |
39 | Type | 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 |
    Number:
      Ensemble forecast number.
      Control forecast is number 0,
      perturbed foecasts 1 - nn.
    Set to 0 if not ensemble forecast.
| 50 | number | perturbationNumber |
43 |
    Total:
      Total number of forecasts in ensemble.
      This number includes the control forecast.
    Set to 0 if not ensemble forecast.
| 51 | numberOfForecastsInEnsemble | numberOfForecastsInEnsemble |
44 | Model identifier (in range 1 - 255) | 52 | modelIdentifier | modelIdentifier |
45 | Latitude of North-west corner of area (degrees*10^6) | 53 - 56 | latitudeOfNorthWestCornerOfArea | latitudeOfNorthWestCornerOfArea |
46 | Longitude of North-west corner of area (degrees*10^6) | 57 - 60 | longitudeOfNorthWestCornerOfArea | longitudeOfNorthWestCornerOfArea |
47 | Latitude of South-east corner of area (degrees*10^6) | 61 - 64 | latitudeOfSouthEastCornerOfArea | latitudeOfSouthEastCornerOfArea |
48 | Longitude of South-east corner of area (degrees*10^6) | 65 - 68 | longitudeOfSouthEastCornerOfArea | longitudeOfSouthEastCornerOfArea |
49 - 60 | Reserved for ECMWF additions | 69 - 116 |  |  |
49 | Original parameter number | 69 | originalParameterNumber | originalParameterNumber |
50 | Original parameter table number | 70 | originalParameterTableNumber | originalParameterTableNumber |
51 - 60 | Set to zero | 71 - 116 |  |  |
61 - 106 | Optional data | 117 - 300 | optionalData | optionalData |