| Acronym | Meaning |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| ESSA | Environmental Science Services Administration (preceded NOAA) |
| SHARP | Summer High School Apprenticeship Research Program (NASA) |
| HSB | Humidity Sounder For Brazil |
| MSLP | MSL Pressure |
| CONUS | CONtinental (or CONterminus) United States |
| HIRES | HIgh RESolution |
| HIRDLS | HIgh-Resolution Dynamics Limb Sounder (EOS) |
| ESMR | Electrically Scanning Microwave Radiometer |
| SSU | Stratospheric Sounding Unit (TOVS) |