| Acronym | Meaning |
| AMC | Army Materiel Command |
| ESML | Earth Science Markup Language |
| RFC | River Forecast Center |
| OSTP | Office Of Science And Technology Policy |
| BNWL | Battelle Northwest Laboratory |
| GAPEX | Ground-based Atmospheric Profiling Experiment |
| GKS | Graphic Kernal System |
| ENACEOS | Energetic Neutral Atom Camera For EOS |
| ACF | Acid Concentrator Feed |
| IFOV | Instantaneous Field Of View |