ElementContentsecCodes keys
1Data representation type (see WMO code table 6) = 5gridType
2Number of points along X-axis.Nx
Ni
3Number of points along Y-axis.Ny
Nj
4Latitude of the first grid point.latitudeOfFirstGridPointInDegrees*1000
5Longitude of the first grid point.longitudeOfFirstGridPointInDegrees*1000
6Reserved. Set to 0. (Resolution flag is not applicable to polar stereographic.)
7Orientation of the grid, ie the longitude of the meridian which is parallel to the Y-axis along which latitude increases as the Y-coordinate increases.orientationOfTheGrid
8Reserved. Set to 0.
9X-direction grid length.xDirectionGridLengthInMetres
10Y-direction grid length.yDirectionGridLengthInMetres
11Scanning mode flag (see WMO code table 8)
12Zero
13
Projection centre flag:
 0      North pole is on projection plane.
 128    South pole is on projection plane.
projectionCenterFlag
14-16Reserved. Set to 0.
170 Regular grid.gridType
18
Earth flag:
 0      Earth assumed spherical with radius 6367.47 km.
 64     Earth assumed oblate spheroidal with size as determined by IAU in 1965:
          6378.160km,   6356.775km,   f=1/297.0
earthIsOblate
19
Components flag. Valid values are:
 0      Resolved u and v components of vector quantities relative to easterly
        and northerly directions.
 8      Resolved u and v components of vector quantities relative to the
        defined grid in the direction of increasing x and y (or i and j)
        coordinates respectively.
uvRelativeToGrid
20-22Reserved. Set to 0.

Grid lengths are in metres, at the 60-degree parallel nearest to the pole on the projection plane.