| Acronym | Meaning |
| PIFM | Practical Improved Flux Method |
| LSA | Logistics Support Analysis |
| OMEGA | Operational And Prediction Multi-scale Environmental Model With Grid Adaptivity |
| AMS | Army Map Service |
| ISTS | Institute For Space And Terrestrial Science |
| SIPRI | Stockholm International Peace Research Institute |
| ALSAS | AT Line Solution Assay |
| HAO | High Altitude Observatory |
| GAGE | Global Atmospheric Gases Experiment |
| FATS | FORTRAN Automatic Timing System |