| Acronym | Meaning |
| GN AND C | Guidance |
| NRLSI | National Reference Library Of Science And Invention |
| GTCSM | Global Tropospheric Chemistry Systems Model |
| NEWS | Network Extensible Windows System |
| TASI | Time-assingment Speech Interpolation |
| LAI | Leaf Area Index |
| BBSO | Big Bear Solar Observatory |
| ARGUS | ARGonne Unified Safeguards |
| ESML | Earth Science Markup Language |
| 3CPO | Cloud Chemistry And Cloud Physics Organization |