| Acronym | Meaning |
| DOOS | DICOMED Online Operating System |
| ARPS | Advanced Regional Prediction System |
| NPI | North Pacific Index |
| ACC | Antarctic Circumpolar Current |
| MSI | Measurements |
| IWRA | International Water Resources Association |
| CAC | Climate Analysis Center |
| AGT | Above-ground Test |
| FERMILAB | FERMI National Acceleration Laboratory |
| FICA | Federal Insurance Contributions Act |