Element | Contents | GRIB APIecCodes keys | |
---|---|---|---|
1 | Data representation type (see WMO code table 6); e.g. | gridType | |
2 | Number of points along X-axis. | Nx Ni | |
3 | Number of points along Y-axis. | Ny Nj | |
4 | Latitude of the first grid point. | latitudeOfFirstGridPointInDegrees*1000 | |
5 | Longitude of the first grid point. | longitudeOfFirstGridPointInDegrees*1000 | |
6 | Resolution flag: | ijDirectionIncrementGiven*128 | |
7 | Orientation of the grid. The East longitude of the meridian which is parallel to the Y-axis along which latitude increases as the Y-coordinate increases. | orientationOfTheGridInDegrees*1000 | |
8 | Reserved. Set to 0. | ||
9 | X-direction grid length. | xDirectionGridLength | |
10 | Y-direction grid length. | yDirectionGridLength | |
11 | Scanning mode flag (see WMO code table 8) | iScansNegatively jScansNegatively jPointsAreConsecutive | |
12 | Number of vertical coordinate parameters. | NV | |
13 | Projection centre flag: | projectionCenterFlag | |
14 | First latitude from the pole at which the secant cone cuts the sphere. | firstLatitudeFromThePoleAtWhichTheSecantConeCutsTheSphereInDegrees*1000 | |
15 | Second latitude at which the secant cone cuts the sphere. | secondLatitudeFromThePoleAtWhichTheSecantConeCutsTheSphereInDegrees*1000 | |
16 | Reserved. Set to 0. | ||
17 | 0 Regular grid | gridType | |
18 | Earth flag: | earthIsOblate | |
19 | Components flag: | uvRelativeToGrid | |
20 | Latitude of the southern pole. | latitudeOfSouthernPoleInDegrees*1000 | |
21 | Longitude of the southern pole. | longitudeOfSouthernPoleInDegrees*1000 | |
22 | Reserved. Set to 0. |
Notes: Grid lengths are in metres, at the 60-degree parallel nearest to the pole on the projection plane