| BIT | VALUE | MEANING |
|---|
| 1 |
0 |
Direction increments not given |
| 1 |
Direction increments given |
| 2 |
0 |
Earth assumed spherical with
radius = 6367.47 km |
| 1 |
Earth assumed oblate spheroid with size
as determined by IAU in 1965:
6378.160 km, 6356.775 km, f = 1/297.0 |
| 3-4 | 0 |
reserved (set to 0) |
| 5 |
0 |
u- and v-components of vector quantities resolved relative to easterly and northerly directions |
| 1 |
u and v components of vector quantities resolved
relative to the defined grid in the direction of increasing x and y (or i and j) coordinates respectively |
| 6-8 | 0 |
reserved (set to 0) |