| Acronym | Meaning |
| OSI | Open Systems Interconnection |
| EPRI | Electric Power Research Institute |
| STP | Solar Terrestrial Physics |
| EO-ICWG | Earth Observation International Coordination Working Group |
| IERS | International Earth Rotation Service |
| TWC | The Weather Channel |
| AEEN | Agence Europeenne Pour L'Energie Nucleaire |
| BASIC | Beginner's All-purpose Symbolic Instruction Code |
| THREDDS | Thematic Real-time Environmental Distributed Data Services |
| MSS | Mass Storage System |