| Acronym | Meaning |
| DCS | Data Collection System (NOAA Polar Orbiting Satellites) |
| TMR | TOPEX Microwave Radiometer (EOS) |
| HST | Hubble Space Telescope |
| MOPITT | Measurements Of Pollution In The Troposphere (EOS) |
| CAC | Climate Analysis Center |
| MHZ | MegaHertz |
| GEOSAT | GEOdetic SATellite |
| HRIR | High Resolution Infrared Radiometer |
| CPC | Climate Prediction Center (NWS Center) |
| IMG | Interferometric Monitor For Greenhouse Gases |