| Acronym | Meaning |
| OSS | Office Of Space Science (NASA) |
| TOVS | TIROS Operational Vertical Sounder |
| SDS | Satellite Data Services |
| CPC | Climate Prediction Center (NWS Center) |
| AVHRR | Advanced Very High Resolution Radiometer |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| SAB | Satellite Applications Branch (old. NESDIS) |
| CRAS | CIMSS Regional Assimilation System |
| MODIS-N | MODerate-resolution Imaging Spectroradiometer-Nadir (EOS) |
| IMG | Interferometric Monitor For Greenhouse Gases |