| Acronym | Meaning |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| GMT | Greenwich Mean Time (repl. By UTC) |
| OSS | Office Of Space Science (NASA) |
| NASDA | National Space Development Agency (Japan) |
| MLS | Microwave Limb Sounder (EOS) |
| MB | Millibar(s) |
| GIFTS | Geosynchronous Imaging Fourier Transform Spectrometer |
| SSU | Stratospheric Sounding Unit (TOVS) |
| CONUS | CONtinental (or CONterminus) United States |
| ABS | Advanced Baseline Sounder |