| Acronym | Meaning |
| GEOS | Geostationary Earth-Orbiting Satellite |
| NILU | Norwegian Institute For Air Research |
| SCAR | Scientific Committee For Antarctic Research |
| PDM | Pulse Duration Modulation |
| AVIRIS | Airborne Visible And Infared Imaging Spectrometer |
| PSC | Polar Stratospheric Cloud |
| FUN | FL-4 Uniform Network Project |
| E-MAIL | Electronic Mail |
| DSAT | Distributed System Administration Team |
| IIWG | International Investigator Working Group |