| Acronym | Meaning |
 | ISM | In Situ Measurements |
| AFGL | Air Force Geophysics Laboratory |
| AD&D | Accidental Death And Dismemberment |
| HIRDLS | High-Resolution Dynamics Limb Sounder |
| SDHS | Satellite Data Handling System |
| NRN | National Research Network |
| NAT | Nitric Acid Trihydrate |
| SG | Semigeostrophic |
| GNU | GNU's Not UNIX (a Recursive Acronym) |
| ITU | International Telecommunications Union |
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