| Acronym | Meaning |
| GCTM | Global Chemical Transport Model |
| NDBC | National (or NOAA) Data Buoy Center |
| ATSR | Argonne Thermal Source Reactor |
| LSM | Land Surface Model |
| IAP | International Affiliates Program |
| THORPEX | The Observing System Research And Predictability Experiment |
| PAR | Photosynthetically Active Radiation |
| ACS | Administrative Computing And Systems |
| APEX | Advance Purchase Excursion |
| RAF | Research Aviation Facility |