| Acronym | Meaning |
| LOD2 | Lightweight Omega Digital Dropwindsonde |
| ECAO | Environmental Criteria And Assessment Office |
| IQSY/EX | International Quiet Years Of The Sun Experiments |
| GDPS | Global Data Processing System |
| MPDATA | Multidimensional Positive Definite Advection Algorithm |
| AI | Authorized Inspector |
| NAVSTAR | NAVigation Signal Timing And Ranging System |
| PACS | Pan-American Climate Studies |
| CAO | Central Aerological Observatory |
| FPS | Foot-pound Second System Of Measurements |