| Acronym | Meaning |
| VHF | Very High Frequency |
| ARIN | Aerospace Resource Information Network |
| CAPP | Center For Applied Parallel Processing |
| NMFS | National Marine Fisheries Service |
| AWFTF | Aviation Weather Forecasting Task Force |
| LSM | Land Surface Model |
| AAEE | American Academy Of Environmental Engineers |
| AAM | Airborne Activity Monitor |
| NAOS | North American Observing System |
| HB | Hard Black |