| KSEC1 element |
Contents |
GRIB octet |
Recommended
GRIB_API key |
Coded
GRIB_API keys |
Comments |
| 37 |
ECMWF local GRIB use definition identifier. 191 = Free format data descriptor
|
41 |
localDefinitionNumber |
localDefinitionNumber |
|
| 38 |
Class: 121
= general member state data |
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, for compatibility with Mars labelling |
50 |
|
|
|
| 43 |
Zero, for compatibility with Mars labelling |
51 |
|
|
|
| 44 |
Format version major number |
52 |
formatVersionMajorNumber
|
formatVersionMajorNumber |
|
| 45 |
Format version minor number |
53 |
formatVersionMinorNumber
|
formatVersionMinorNumber |
|
| 46 |
Original sub-centre identifier |
54 |
originalSubCentreIdentifier
|
originalSubCentreIdentifier |
|
| 47-50 |
Set to zero |
55-58 |
|
|
|
| 51 |
Number of bytes of free format data descriptor (N, say) |
59-60 |
numberOfBytesOfFreeFormatData
|
numberOfBytesOfFreeFormatData |
|
| 52-(51+N/J) |
Data descriptor bytes packed in integer array elements (J= the number of bytes in an integer = 4 or 8)
|
61-(60+N) |
freeFormData
|
freeFormData |
numberOfBytesOfFreeFormatData
values.
|
| - |
The section is padded with zeroes to make the overall
length of the section = 60 + 80*M for some M > 0 |
(61+N)-(60+80*M) |
|
|
|