GRIB2 - GRID DEFINITION TEMPLATE 3.50

Spherical Harmonic Coefficients

Created 07/29/2005


Octet No. 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


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