| Acronym | Meaning |
| EM | ElectroMagnetic |
| AOS | (Department Of) Atmospheric And Oceanic Sciences |
| GARS | GOES Archive And Retrieval System |
| NWS | National Weather Service (NOAA) |
| APP | AVHRR Polar Pathfinder |
| PIFTS | Planetary Imaging Fourier Transform Spectrometer |
| ESOC | European Satellite Operations Center |
| MAS | MODIS Airborne Simulator |
| MLS | Microwave Limb Sounder (EOS) |
| LAWS | Laser Atmospheric Wind Sounder (EOS) |