| Acronym | Meaning |
| SVG | Scientific Visualization Group |
| ELF | Extremely Low Frequency |
| MAP | Middle Atmosphere Program |
| DLPDU | Data Link Protocol Data Unit |
| EUMAC | Part Of EUROTRAC |
| CDSF | Customer Data Service Facility |
| O/I | Optimal Interpolation |
| ETH | Eidgenossische Technische Hochschule |
| AIDA | Archive 1 Data Analyzer |
| GTE | Global Tropospheric Experiment |