| Acronym | Meaning |
 | IRR | Integrated Requirements Review |
| IRAS | Infrared Astronomical Satellite |
| AQD | Air Quality Digest |
| GAARS | Global Atmospheric Aerosol And Radiation Study |
| CCSDS | Consultative Committee For Space Data Systems |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| EUCREX | European Cirrus Research Experimetn |
| HAPEX | Hydrological Atmospheric Pilot Experiment |
| ERC | Environmental Research Center |
| GRIP | Greenland Ice Project |
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