GRIB2 - GRID DEFINITION TEMPLATE 3.110

Equatorial Azimuthal Equidistant Projection

Created 08/03/2005


Octet No. Contents
15 Shape of the Earth (See Table 3.2)
16
Scale factor of radius of spherical Earth
17-20
Scaled value of radius of spherical Earth
21
Scale factor of major axis of oblate spheroid Earth
22-25
Scaled value of major axis of oblate spheroid Earth
26
Scale factor of minor axis of oblate spheroid Earth
27-30
Scaled value of minor axis of oblate spheroid Earth
31-34 Nx ‐ number of points along x-axis
35-38
Ny ‐ number of points along y-axis
39-42
La1 ‐ latitude of tangency point (centre of grid)
43-46
Lo1 ‐ longitude of tangency point
47
Resolution and component flags (see Flag Table 3.3)
48-51
Dx ‐ x-direction grid length in units of 10 -3 m as measured at the point of the axis
52-55
Dy ‐ y-direction grid length in units of 10-3 m as measured at the point of the axis
56

Projection centre flag (see Flag Table 3.5)

57 Scanning mode (see Flag Table 3.4)


Notes:

1. A scale value of radius of spherical Earth, or major or minor
axis of oblate spheroid Earth, is derived by applying the apropriate
scale factor to the value expressed in meters.


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