| Acronym | Meaning |
| RAFS | Regional Analysis And Forecast System |
| Z-R | Relationship |
| GDS | GeoMet Data Services |
| BWI | Baltimore-Washington International Airport |
| CAT | Clear Air Turbulence |
| OI | Optimal Interpolation |
| APJ | The Astrophysical Journal |
| NRN | National Research Network |
| SSM/T | Special Sensor Microwave Temperature |
| S/TM | Stratospheric/tropospheric Measurements |