| Acronym | Meaning |
| AMSU | Advanced Microwave Sounder Unit (EOS) |
| NOAASIS | NOAA Satellite Information System |
| HZ | Hertz |
| NOAA | National Oceanic And Atmospheric Administration |
| OSO | Orbiting Solar Observatory |
| DXS | Diffuse X-ray Spectrometer |
| SHARP | Summer High School Apprenticeship Research Program (NASA) |
| AOT | Aerosol Optical Thickness |
| HIS | High-resolution Interferometer Sounder |
| TMR | TOPEX Microwave Radiometer (EOS) |