| Acronym | Meaning |
| TEXMEX | Tropical Experiment Over Mexico |
| VAP | Voluntary Assistance Program |
| AP | Anomalous Propagation |
| LORAN-C | Long Range (aid To) Navigation-C |
| MTL | Message Transfer Layer |
| WMC | World Meteorological Center(s) |
| D/RADEX | Digital Radar Experiment |
| DA | Drift Angle |
| AXBT | Expendable Bathythermographs Air Dropped Temperature Device |
| AMR | Advanced Microwave Radiometer |