| Acronym | Meaning |
 | OCME | Oceanographic Community Modeling Effort |
| UTC | Universal Time Coordinate Or Coordinated Universal Time |
| UGGI | See IUGG |
| OBAC | Office Of Budget And Control |
| SSB | Single Sideband |
| ANI | Authorized Nuclear Inspector |
| OFAP | Observing Facilities Advisory Panel |
| CCAA | Canadian Clean Air Act |
| PCO | Polar Cap Observatory |
| NDVI | Normalized Difference Vegetation Index |
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