| Acronym | Meaning |
 | ABBA | Automated Biomass Burning Algorithm |
| ABI | Advanced Baseline Imager |
| ABS | Advanced Baseline Sounder |
| AC | Alternating Current |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| ADEOS | ADvanced Earth Observing Satellite (Japan) |
| AERI | Atmospheric Emitted Radiance Interferometer |
| AIRS | Atmospheric InfraRed Sounder (EOS) |
| AMRIR | Advanced Medium Resolution Infrared Radiometer |
| AMS | American Meteorological Society |
| AMSU | Advanced Microwave Sounder Unit (EOS) |
| AO&SS | Atmospheric |
| AOS | (Department Of) Atmospheric And Oceanic Sciences |
| AOT | Aerosol Optical Thickness |
| APP | AVHRR Polar Pathfinder |
| ASPT | Advanced Satellite Products Team (NOAA/ORA) |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection Radiometer (EOS) |
| ATOVS | Advanced TIROS Operational Vertical Sounder |
| AU | Astronomical Unit |
| AURA | Association Of Universities For Research In Astronomy |
| AVHRR | Advanced Very High Resolution Radiometer |
| AVIRIS | Airborne Visible InfraRed Imaging Spectrometer (JPL) |
| BIBEX | Biomass Burning Experiment |
| BIT | Binary Digit |
| C | Centigrade |
| CAC | Climate Analysis Center |
| CCR | Center For Climatic Research (IES) |
| CD-ROM | Compact Disc-Read Only Memory |
| CERES | Clouds And The Earth's Radiant Energy System (EOS) |
| CFC | ChloroFluoroCarbon |
| CH4 | Methane |
| CIMSS | Cooperative Institute For Meteorological Satellite Studies |
| COMET | Cooperative Program For Operational Meteorology Education And Training (NOAA And UCAR) |
| COMSAT | COMmunications SATellite |
| CONUS | CONtinental (or CONterminus) United States |
| CPC | Climate Prediction Center (NWS Center) |
| CRAS | CIMSS Regional Assimilation System |
| CRIS | Cross-track Infrared Sounder |
| CSBT | Clear-Sky Brightness Temperature |
| DCS | Data Collection System (NOAA Polar Orbiting Satellites) |
| DOIT | Department Of Information Technology (UW-MSN) |
| DORIS | Doppler Orbitography And Radiopositioning Integrated By Satellite (EOS) |
| DXS | Diffuse X-ray Spectrometer |
| EARTHKAM | Earth Knowledge Acquired By Middle-schoolers |
| ECMWF | European Centre For Medium-range Weather Forecasts |
| EDC | EROS Data Center |
| EM | ElectroMagnetic |
| ENSO | El Ni?o/Southern Oscillation |
| EOS | Earth Observing System |
| EOSDIS | Earth Observing System Data And Information System |
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