| Acronym | Meaning |
| PRECP | Processing Of Emissions By Clouds And Precipitation |
| FX-ALPHA | FSL X-window AWIPS-Like Prototype For Hydrometeorological Applications |
| APU | Auxiliary Power Unit |
| IGACP | International Global Atmospheric Chemistry Program |
| GC | Gas Chromatograph |
| IPOC | International Partner Operations Center |
| AAG | Association Of American Geographers |
| BBSO | Big Bear Solar Observatory |
| IDS | International Data Service |
| VNTSC | Volpe National Transportation Systems Center |