| Acronym | Meaning |
| MB | Millibar(s) |
| AOT | Aerosol Optical Thickness |
| GEOSAT | GEOdetic SATellite |
| ERSC | Environmental Remote Sensing Center (IES) |
| STEP | Satellite Technology Education Program (WSGC) |
| OSS | Office Of Space Science (NASA) |
| AERI | Atmospheric Emitted Radiance Interferometer |
| EPA | Environmental Protection Agency (U.S.) |
| NESDIS | National Environmental Satellite |
| GLOBE | Global Learning And Observations To Benefit The Environment |