# Code table 3.1 - Grid definition template number
0 0 Latitude/longitude (Also called equidistant cylindrical, or Plate Carree)
1 1 Rotated latitude/longitude
2 2 Stretched latitude/longitude
3 3 Stretched and rotated latitude/longitude
4 4 Variable resolution latitude/longitude 
5 5 Variable resolution rotated latitude/longitude 
# 6-9 Reserved
10 10 Mercator
12 12 Transverse Mercator
# 13-19 Reserved
20 20 Polar stereographic projection (Can be south or north)
# 21-29 Reserved
30 30 Lambert conformal (Can be secant or tangent, conical or bipolar)
31 31 Albers equal area
# 32-39 Reserved
40 40 Gaussian latitude/longitude
41 41 Rotated Gaussian latitude/longitude
42 42 Stretched Gaussian latitude/longitude
43 43 Stretched and rotated Gaussian latitude/longitude
# 44-49 Reserved
50 50 Spherical harmonic coefficients
51 51 Rotated spherical harmonic coefficients
52 52 Stretched spherical harmonic coefficients
53 53 Stretched and rotated spherical harmonic coefficients
# 54-89 Reserved
90 90 Space view perspective or orthographic
# 91-99 Reserved
100 100 Triangular grid based on an icosahedron
101 101 General unstructured grid
# 102-109 Reserved
110 110 Equatorial azimuthal equidistant projection
# 111-119 Reserved
120 120 Azimuth-range projection
# 121-129 Reserved
130 130 Irregular latitude/longitude grid
# 131-139 Reserved
140 140 Lambert azimuthal equal area projection
# 141-999 Reserved
1000 1000 Cross-section grid with points equally spaced on the horizontal
# 1001-1099 Reserved
1100 1100 Hovmoller diagram grid with points equally spaced on the horizontal
# 1101-1199 Reserved
1200 1200 Time section grid
# 1201-32767 Reserved
# 32768-65534 Reserved for local use
65535 65535 Missing
