| GRIB_FIELD | GRIB Field stored/to be stored im message |
| GRIB_FILE | GRIB level 1 file |
| GRIB_GRID | Interface to grid as defined in GRIB version 1 files |
| GRIB_GRID_gaussian_latlon | Gaussian latitude/longitude grid |
| GRIB_GRID_lambert_conformal | Lambert conformal grid parameters |
| GRIB_GRID_mercator | Mercator grid parameters |
| GRIB_GRID_polar_stereographic | Polar Stereographic grid parameters |
| GRIB_GRID_regular_latlon | Regular lat/lon grid parameters |
| GRIB_GRID_spaceview | Space View grid (meteorological satellites) |
| GRIB_GRID_spherical_harmonic | Spherical Armonic coefficients |
| GRIB_LEVEL | Interface to level description as stored in GRIB version 1 files |
| GRIB_MESSAGE | Message structure: a grid at single level and single time |
| GRIB_TIME | Interface to time description as stored in GRIB version 1 files |
| ParmTable | Parameter tables |
1.2.18