| Acronym | Meaning |
| PIFM | Practical Improved Flux Method |
| EOS | Earth Observing System |
| AIP | American Institute Of Physics |
| CAI | Computer-aided Instruction |
| MSFC | Marshall Space Flight Center |
| NSPI | National Society For Programmed Instruction |
| DAWG | Data Assimilation Working Group |
| TIMED | Thermosphere-Ionosphere-Mesosphere Energetics & Dynamics |
| ATRMD | Air |
| UV | UNAVCO Building |