| Acronym | Meaning |
| FTS | Fourier Transform Spectrometer (HIS |
| GAC | Global Area Coverage |
| MISR | Multi-angle Imaging Spectro-Radiometer (EOS) |
| V | Volts |
| HRIR | High Resolution Infrared Radiometer |
| ABS | Advanced Baseline Sounder |
| OSS | Office Of Space Science (NASA) |
| POES | Polar Operational Environmental Satellite |
| CERES | Clouds And The Earth's Radiant Energy System (EOS) |
| EPA | Environmental Protection Agency (U.S.) |