| Acronym | Meaning |
| FAT | Factory Acceptance Test |
| ETA | A Hydrostatic Model That Employs The Eta Vertical Coordinate |
| SIR | Shuttle Imaging Radar |
| HAC | Heads And Chairs |
| GOSIP | Government Open Systems Interconnect Protocol |
| POLARIS | Photochemistry Of Ozone Loss In The Arctic Region In Summer |
| NASCO | NAS Committee On Oceanography |
| ARGOS | Data Collection And Location System |
| NCGIA | National Center For Geographic Information And Analysis |
| STSP | Solar Terrestrial Science Programme |