| Acronym | Meaning |
| AMS | American Meteorological Society |
| HRIR | High Resolution Infrared Radiometer |
| MCIDAS | Man Computer Interactive Data Access System |
| EOS | Earth Observing System |
| KSC | Kennedy Space Center |
| MB OR MB | Megabytes (or Megabits) |
| EPA | Environmental Protection Agency (U.S.) |
| GEWEX | Global Energy And Water Cycle EXperiment (WCRP) |
| IRIS | Infrared Radiation Interferometer Spectrometer (1960s) |
| MAS | MODIS Airborne Simulator |