5km CONUS grid -- Image available here |
Octet No. |
Value |
Explanation |
1-4 | TBD | Length of section in octets |
5 | 3 | Number of Section |
6 | 0 | Grid definition template defined in Octet 13-14 |
7-10 | 739297 | Number of data points |
11 | 0 | Number of non-rectangular points |
12 | 0 | No appended list of points |
13-14 | 30 | Lambert Conformal GDT |
15 | 1 | Spherical earth, radius in Octet 16-20 |
16 | 0 | Scale factor of radius of spherical earth |
17-20 | 6371200 | Scaled value of radius of spherical earth |
21 | missing | |
22-25 | missing | |
26 | missing | |
27-30 | missing | |
31-34 | 1073 | NX |
35-38 | 689 | NY |
39-42 | 20192000 | Latitude of first grid point |
43-46 | 238446000 | Longitude of first grid point |
47 | 48 | Resolution and component flags |
48-51 | 25000000 | Latitude where Dx and Dy are specified |
52-55 | 265000000 | Longitude of parallel meridian |
56-59 | 5079406 | Dx - grid length in x direction |
60-63 | 5079406 | Dy - grid length in y direction |
64 | 0 | Projection centre flag |
65 | 80 | data scanned boustrophedonically |
66-69 | 25000000 | Latin 1 |
70-73 | 25000000 | Latin 2 |
74-77 | -90000000 | Latitude of southern pole |
78-81 | 0 | Longitude of southern pole |