| Acronym | Meaning |
| ARPA | Archaeological Resources Protection Act |
| IRIS | Italian Research Interim Stage |
| POLEX | Polar Experiment |
| O/I | Optimal Interpolation |
| JCL | Job Control Language |
| VM/SP | Virtual Machine/System Product |
| IGW | Internal Gravity Waves |
| HIRS | High Infrared Radiometer (or Radiation) Sounder |
| FOS | Flight Operations Segment |
| JONSWAP | Joint North Sea Wave Project |