Element | Contents | GRIB APIecCodes keys | |
---|---|---|---|
1 | Data representation type (see WMO code table 6) = 1 | gridType | |
2 | Number of points along a parallel. | Ni Nx | |
3 | Number of points along a meridian. | Nj Ny | |
4 | Latitude of the first grid point. | latitudeOfFirstGridPointInDegrees*1000 | |
5 | Longitude of the first grid point. | longitudeOfFirstGridPointInDegrees*1000 | |
6 | Resolution flag: | ijDirectionIncrementGiven*128 | |
7 | Latitude of the last grid point. | latitudeOfLastGridPointInDegrees*1000 | |
8 | Longitude of the last grid point. | longitudeOfLastGridPointInDegrees*1000 | |
9 | Latitude at which the Mercator projection cylinder intersects the Earth(Latin). | latitudeAtWhichTheMercatorProjectionCylinderIntersectsTheEarthInDegrees*1000 | |
10 | Reserved. Set to 0. | ||
11 | Scanning mode flags (see WMO code table 8) | iScansNegatively jScansNegatively jPointsAreConsecutive | |
12 | Number of vertical coordinate parameters. | NV | |
13 | i direction grid length. | longitudinalDirectionGridLength | |
14 | j direction grid length. | latitudinalDirectionGridLength | |
15-16 | Reserved. Set to 0. | ||
17 | 0 Regular grid. | gridType | |
18 | Earth flag: | earthIsOblate | |
19 | Components flag: | uvRelativeToGrid | |
20-22 | Reserved. Set to 0. |
Grid lengths are in units of metres, at the parallel specified by Latin