| Acronym | Meaning |
| STSP | Solar Terrestrial Science Programme |
| EMAD | Equatorial Middle Atmosphere Dynamics |
| UUCP | UNIX-to-UNIX Copy |
| EORV | Emergency Operating Records Vault |
| A/I | Accident/incident |
| IGPO | International GEWEX Program Office |
| CBO | Congressional Budget Office |
| USDI | United States Department Of Interior |
| FDM | Full-depth Model |
| LDR | Linear Depolarization Ratio |