| Acronym | Meaning |
| EISCAT | European Incoherent Scatter Radar System |
| BEJ | Best Expert Judgment |
| EBCDIC | Extended Binary-coded Decimal Interchange Code |
| HCSN | High-Capacity Satellite Network |
| SOR | Successive Over Relaxation |
| ICSU | International Council Of Science |
| EIC | Earth Information System |
| KBYTE | Kilobyte (103) |
| RDSS | Research Data Support System |
| GCE | Part Of EUROTRAC |