RESOLUTION AND COMPONENT FLAGS

(GDS Octet 17)

BIT | VALUE | MEANING |
---|---|---|

Direction increments not given | ||

Direction increments given | ||

Earth assumed spherical with radius = 6367.47 km | ||

Earth assumed oblate spheroid with size as determined by IAU in 1965: 6378.160 km, 6356.775 km, f = 1/297.0 | ||

reserved (set to 0) | ||

u- and v-components of vector quantities resolved relative to easterly and northerly directions | ||

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 | ||

reserved (set to 0) |

Note: | |

If the GDS is not included in a message then any wind components are assumed to be resolved relative to the grid specified in the PDS with u and v defined as positive in the direction of increasing x and y (or i and j) coordinates respectively. |