| Element | Contents | GRIB API keys |
|---|---|---|
| 1 | Data representation type = 192. | gridType |
| 2 | Number of points along first axis (32767 = not used). | Nx Ni |
| 3 | Number of points along second axis (32767 = not used). | Ny Nj |
| 4-10 | Reserved. Set to 0. | |
| 11 | Scanning mode flags (see WMO code table 8) | iScansNegatively jScansNegatively jPointsAreConsecutive |
| 12-22 | Reserved. Set to 0. |
This data representation type should always be used in conjunction with the ECMWF local definition 4 extension to GRIB section 1: ocean model data