| Acronym | Meaning |
| ZTD | Zenith Tropospheric Signal Delay |
| DD+ | Domestic Data Plus |
| ULAFOS | UCAR And Lower Atmospheric Facilities Oversight Section |
| QCMS | Quality Control Monitoring System |
| OWRR | Office Of Water Resources Research |
| STREX | Storm Transfer And Response Experiment |
| FL2 | Second Flight Model |
| MALTS | Marine Layer Thickness Study |
| IAMAS | International Association Of Meteorology And Atmospheric Sciences |
| VM/CMS | Virtual Machine/Conversational Monitor System |