KSEC1 element | Contents | GRIB octet | Recommended GRIB_API keys | Coded GRIB_API keys | Comments
--- | --- | --- | --- | --- | ---
37 |
    ECMWF local GRIB use definition identifier.
    5 = Forecast probability 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 | Forecast probability number. | 50 | number | forecastProbabilityNumber |
43 | Total number of forecast probabilities. | 51 | totalNumberOfForecastProbabilities | totalNumberOfForecastProbabilities |
44 |
    Threshold units decimal scale factor.
     + or - power of 10 (or zero).
     Most significant bit = 1 for negative values.
| 52 | localDecimalScaleFactor | localDecimalScaleFactor |
45 |
    Threshold indicator:
     1 = Only lower threshold is present.
     2 = Only upper threshold is present.
     3 = Both upper and lower thresholds are present.
| 53 | thresholdIndicator | thresholdIndicator |
46 | Lower threshold value. | 54-55 | lowerThreshold | lowerThreshold |
47 | Upper threshold value. | 56-57 | upperThreshold | upperThreshold |
- | Spare (set to zero). | 58 |  |  |