| Acronym | Meaning |
| RAOB | RAdiosonde OBservation |
| NOAASIS | NOAA Satellite Information System |
| EPA | Environmental Protection Agency (U.S.) |
| GAC | Global Area Coverage |
| VAS | VISSR Atmospheric Sounder (launch |
| S-HIS | Scanning High Resolution Interferometer Sounder |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| AOT | Aerosol Optical Thickness |
| CONUS | CONtinental (or CONterminus) United States |
| ASPT | Advanced Satellite Products Team (NOAA/ORA) |