| Acronym | Meaning |
| FRS | First Repository States |
| UNU | United Nations University |
| IBM PS/2 | One Class Of IBM Personal Computers |
| ISM | In Situ Measurements |
| AOIPS | Atmospheric And Oceanographic Information Processing System |
| CDS | Coronal Doppler Spectrometer |
| NOMSS | National Operational Meteorological Satellite System |
| RITS | Radiatively Important Trace Substances |
| ALAPCO | Association Of Local Air Pollution Control Officials |
| VTD | Velocity Track Display |