| Acronym | Meaning |
| SAV | State-of-the-atmosphere Variable |
| R | Rayleigh |
| NCDC | National Climatic Data Center |
| SIRS | Social Issues Resources Services |
| APT | Accelerator Production Of Tritium |
| AIS | Administrative Information Systems |
| DEC | Digital Equipment Corporation |
| ISPAN | Information Stream Project For AWIPS NOAAport |
| NAWPG | National Aviation Weather Products Generator |
| IUPS | International Union Of Physiological Sciences |