| Acronym | Meaning |
| WPDN | Wind Profiler Demonstration Network |
| PPHM | Parts Per Hundred Million |
| GAO | General Accounting Office |
| IUCR | International Union Of Crystallography |
| FATS | FORTRAN Automatic Timing System |
| GFY | Government Fiscal Year |
| EHF | Extremely High Frequency |
| MAPR | Multi-angle Profiling Radar |
| ICECOLORS | Cold Water Component Of WATERCOLORS |
| SEM | Space Environment Monitor |