| Acronym | Meaning |
| GIFTS | Geosynchronous Imaging Fourier Transform Spectrometer |
| MHZ | MegaHertz |
| NASA | National Aeronautics And Space Administration |
| TMR | TOPEX Microwave Radiometer (EOS) |
| HIRDLS | HIgh-Resolution Dynamics Limb Sounder (EOS) |
| GAC | Global Area Coverage |
| VIS5D | Visualization Of Five-Dimensional Data |
| OAO | Orbiting Astronomical Observatory |
| IMG | Interferometric Monitor For Greenhouse Gases |
| SSU | Stratospheric Sounding Unit (TOVS) |