| Acronym | Meaning |
| APAS | Astrophysical |
| EMSES | Electromagnetic Modeling And Simulation Environment For Systems |
| ARCC | American Rivers Conservation Council |
| NARA | U.S. National Archives And Records Administration |
| PCC | Profiler Control Center |
| PRECP | Processing Of Emissions By Clouds And Precipitation |
| AC | Adirondac Conference |
| ML | Mesa Laboratory |
| AER | AWIPS Forecast Preparation System |
| SLT | Semi-Lagrangian Transport |