GRIB2 - GRID TEMPLATE 3.50
Spherical harmonic coefficients
Created 07/29/2005

Octet | Contents
--- | ---
15-18 | J ― pentagonal resolution parameter
19-22 | K ― pentagonal resolution parameter
23-26 | M ― pentagonal resolution parameter
27 | Representation type indicating the method used to define the norm (see Code Table 3.6)
28 | Representation mode indicating the order of the coefficients (see Code Table 3.7)

Notes: The pentagonal representation of resolution is general. Some common truncations are special cases of the pentagonal one: Triangular: M = J = K Rhomboidal: K = J + M Trapezoidal: K = J, K > M

Back