Grid 50: Spherical harmonic coefficients

Grids

Grid 0
Grid 1
Grid 2
Grid 3
Grid 4
Grid 5
Grid 6
Grid 7
Grid 8
Grid 9
Grid 10
Grid 13
Grid 14
Grid 20
Grid 24
Grid 30
Grid 34
Grid 50
Grid 60
Grid 70
Grid 80
Grid 90

Octets	Key	Type	Content
7-8	J	unsigned	J pentagonal resolution parameter
9-10	K	unsigned	K pentagonal resolution parameter
11-12	M	unsigned	M pentagonal resolution parameter
13	representationType	codetable	Representation type (see Code table 9)
14	representationMode	codetable	Representation mode (see Code table 10)
15-32			Set to zero (reserved)

Notes:

( 1) 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

( 2) The representation type (octet 13) indicates the method used to define the norm.

( 3) The representation mode (octet 14) indicates the order of the coefficients, whether global or hemispheric data are depicted, and the nature of the parameter stored (symmetric or antisymmetric).

( 4) See Notes (6) to (11) under Grid definition latitude/longitude grid (or equidistant cylindrical, or Plate Carrée) page I.2 Bi 8.