| Acronym | Meaning |
| ESM | Earth Systems Model |
| IPMMI | International Photolysis Measurements And Modeling Intercomparison |
| AGGG | Advisory Group On Greenhouse Gases |
| WITI | Weather Information Technologie |
| EOS-A | First NPOP |
| RMC | RAF Management Council |
| NLDS | National Lightning Detection System |
| BITS | Biologically Important Trace Species |
| FWS | Filter Wedge Spectrometer |
| ISRDB | Incoherent Scatter Radar Data Base |