| Acronym | Meaning |
| SPIE | International Society For Optical Engineering |
| UCAID | University Corporation For Advanced Internet Development |
| EMEX | Equatorial Mesoscale Experiment |
| EOL | End Of Life |
| OSF | Operational Support Facility |
| UNCHE OR UNCHE | United Nations Conference On The Human Environment |
| PCM | Parallel Climate Model |
| BCWS | Budgeted Cost For Work Scheduled |
| URSI | International Union Of Radio Science |
| DOE/HQ-EH | DOE Headquarters |