| Acronym | Meaning |
| DLD | Digital Loran Dropwindsonde |
| AW | Annual Worth |
| SHF | Super High Frequency |
| CASC | Coalition For Academic Supercomputer Centers |
| NOARL | Naval Oceanographic And Atmospheric Research Laboratory |
| M-PDU | Multiplexed Protocol Data Unit |
| ATS | Advanced Technology Satellite |
| IUGG | International Union Of Geodesy And Geophysics |
| AORD | Astronaut Operations Requirements Document |
| DIAL | Differential Absorption Lidar |