| Acronym | Meaning |
| MLSO | Mauna Loa Solar Observatory |
| OPLE | OMEGA Position And Location Experiment |
| A/C | Aircraft |
| ASNT | American Society For Nondestructive Testing |
| AMOS | Automatic Meteorological Observation System |
| ETAG | Educational Technologies Assistance Group |
| SPAN | Space Physics Analysis Network |
| EU | European Union |
| CCM3 | Community Climate Model Version 3 |
| DDS | Data Delivery Services |