| Acronym | Meaning |
| GMU | Gyro Mechanical Unit |
| LOE | Level Of Effort |
| RIDGE | Ridge Interdisciplinary Global Experiment |
| GTG | GARP Task Group |
| ICMUA | IAMAS Commission On The Meteorology Of The Upper Atmosphere |
| LRU | Laser Recording Unit |
| CAST | Chinese Academy Of Space Technology |
| UQAM | Universite De Quebec A Montreal |
| GOM | Global Observations And Modeling Project |
| UTC | Universal Time Coordinate Or Coordinated Universal Time |