KSEC1 element | Contents | GRIB octet | Recommended GRIB_API keys | Coded GRIB_API keys | Comments
--- | --- | --- | --- | --- | ---
37 |
    ECMWF local GRIB use definition identifier.
    30 = Forecasting Systems with Variable Resolution
| 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 |
    Ensemble member number.
    Control forecast is number 0, perturbed forecasts are 1-nn.
| 50 | number | perturbationNumber |
43 | Number of forecasts in ensemble | 51 |  |  |
44 | Ocean Atmosphere Coupling | 52 | oceanAtmosphereCoupling | oceanAtmosphereCoupling |
45 | Spare | 53 |  |  |
- | Padding | 54-55 |  |  |
46 | Leg base Date (in format YYYYMMDD) | 56-59 | legBaseDate | legBaseDate |
47 | Leg base Time (in format hhmm) | 60-61 | legBaseTime | legBaseTime |
48 | Leg Number | 62 | legNumber | legNumber |
49 | Date of forecast run (YYYYMMDD) | 63-66 | referenceDate | referenceDate |
50 | Climate date - from (YYYYMMDD) | 67-70 | climateDateFrom | climateDateFrom |
51 | Climate date - to (YYYYMMDD) | 71-74 | climateDateTo | climateDateTo |
- | Spare (set to zero) | 75-106 |  |  |