| Acronym | Meaning |
 | GSA | General Services Administration |
| NASN | National Air Surveillance Network |
| SSU | Stratospheric Sounding Unit |
| PSI | Pounds Per Square Inch |
| DML | RF Dimensional Metrology Laboratory |
| NLTE | Non Local Thermodynamic Equilibrium |
| VF | Voice Frequency |
| WPDN | Wind Profiler Demonstration Network |
| FCCSET | Federal Coordinating Council On Science |
| ETA | A Hydrostatic Model That Employs The Eta Vertical Coordinate |
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