| Acronym | Meaning |
| PEM | Particle Environment Monitor |
| CBO | Congressional Budget Office |
| IUCR | International Union Of Crystallography |
| PAC | Polar Atmospheric Chemistry |
| CCR | Commitment |
| ESID | EOSDIS Systems Interface Document |
| SCOR | Scientific Committee For Oceanographic Research |
| AC | Adirondac Conference |
| DECAFE | Dynamique Et Chimie De L'Atmosphere En Foret Equitoriale |
| WVF | Water Vapor Flux |