Code table 3.1 - Grid Definition Template Number



Code figure	Meaning	Comments
0	Latitude/longitude	Also called equidistant cylindrical, or Plate Caree.
1	Rotated latitude/longitude
2	Stretched latitude/longitude
3	Stretched and rotated latitude/longitude
4-9	Reserved
10	Mercator
11-19	Reserved
20	Polar stereographic	can be south or north.
21-29	Reserved
30	Lambert conformal	can be secant or tangent, conical or bipolar.
31	Albers equal-area
32-39	Reserved
40	Gaussian latitude/longitude
41	Rotated gaussian latitude/longitude
42	Stretched gaussian latitude/longitude
43	Stretched and rotated gaussian latitude/longitude
44-49	Reserved
50	Spherical harmonic coefficients
51	Rotated spherical harmonic coefficients
52	Stretched spherical harmonic coefficients
53	Stretched and rotated spherical harmonic coefficients
54-89	Reserved
90	Space-view perspective orthographic
91-99	Reserved
100	Triangular grid based on an icosahedron
101-109	Reserved
110	Equatorial azimuthal equidistant projection
111-119	Reserved
120	Azimuth-range projection
121-999	Reserved
1000	Cross-section grid, with points equally spaced on the horizontal
1001-1099	Reserved
1100	Hovmöller diagram grid, with points equally spaced on the horizontal
1101-1199	Reserved
1200	Time section grid
1201-32767	Reserved
32768-65534	Reserved for local use
65535	Missing