KSEC1 element | Contents | GRIB octet | Recommended GRIB_API keys | Coded GRIB_API keys | Comments
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37 |
    ECMWF local GRIB use definition identifier.
    17 = Surface temperature fields made from SST and SSMI data
         with first-guess values inserted on land points.
| 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 | Zero. | 50 |  |  |
43 | Zero. | 51 |  |  |
44 |
    Date of SST field used; YYMMDD
    (Stored in 3 bytes as YYYYMMDD-19000000.
    Zero = date not given.)
| 52-54 | dateOfSSTFieldUsed | dateOfSSTFieldUsed |
45 |
    Type of SST field used:
     0 = climatology
     1 = 1/1 degree SST data
     2 = 2/2 degree sat data
| 55 | typeOfSSTFieldUsed | typeOfSSTFieldUsed |
46 |
    Count of ICE fields used (N, say)
     (NB. N maybe 0)
| 56 | countOfICEFieldsUsed | countOfICEFieldsUsed |
47 |
    Date of first ICE field used; YYYYMMDD.
    (Stored in 3 bytes as YYYYMMDD-19000000.
    Zero = date not given.)
| 57-59 | dateOfIceFieldUsed | dateOfIceFieldUsed |
48 | First day satellite number (ICE data) | 60 | satelliteNumber | satelliteNumber |
49 |
    Date of second ICE field used; YYYYMMDD.
    (Stored in 3 bytes as YYYYMMDD-19000000.
    Zero = date not given.)
| 61-63 |  |  |
50 | Second day satellite number (ICE data) | 64 |  |  |
51 |
    Date of third ICE field used; YYYYMMDD.
    (Stored in 3 bytes as YYYYMMDD-19000000.
    Zero = date not given.)
| 65-67 |  |  |
52 | Third day satellite number (ICE data). | 68 |  |  |
... | ... | - |  |  |
45 + (N*2) |
    Date of Nth ICE field used; YYYYMMDD.
    (Stored in 3 bytes as YYYYMMDD-19000000.
    Zero = date not given.)
| 56 + N*4 |  |  |
46 + (N*2) | Nth day satellite number (ICE data). | 57 + N*4 |  |  |
- | Slots for dates are allocated 10 at a time, so some slots may be empty (set to zero). Empty slots are not included in the count N. | 57 + M*40 |  |  |