| Acronym | Meaning |
| APP | AVHRR Polar Pathfinder |
| MB OR MB | Megabytes (or Megabits) |
| CPC | Climate Prediction Center (NWS Center) |
| DXS | Diffuse X-ray Spectrometer |
| TMR | TOPEX Microwave Radiometer (EOS) |
| AVHRR | Advanced Very High Resolution Radiometer |
| IMG | Interferometric Monitor For Greenhouse Gases |
| SDS | Satellite Data Services |
| IES | Institute For Environmental Studies (UW) |
| ERBE | Earth Radiation Budget Experiment |