| Acronym | Meaning |
| MSG | Meteosat Second Generation |
| BIT | Binary Digit |
| OSO | Orbiting Solar Observatory |
| CRAS | CIMSS Regional Assimilation System |
| SAGE | Stratospheric Aerosol And Gas Experiment (EOS) |
| KM | Kilometer |
| AERI | Atmospheric Emitted Radiance Interferometer |
| ESSA | Environmental Science Services Administration (preceded NOAA) |
| NOAA | National Oceanic And Atmospheric Administration |
| NCEP | National Centers For Environmental Prediction (form. NMC; NWS Center) |