| Acronym | Meaning |
| AIAA | American Institute Of Aeronautics And Astronauts |
| GSOP | Ground Systems Operations |
| PSOS | Profiler Surface Observing System |
| ATV | Ariane Transfer Vehicle |
| APLJHU | Applied Physics Laboratory John Hopkins University |
| PRECIP | Processing Of Emissions By Clouds And Precipitation |
| NHRE | National Hail Research Experiment |
| ARPA | Archaeological Resources Protection Act |
| UKAERE | United Kingdom Atomic Energy Research Establishment |
| W-Z RELATIONSHIP | W = Precipitation Content |