| Acronym | Meaning |
| FSSP | Forward Scattering Spectometer Probe |
| STI | Scientific & Technical Information |
| APC | Argon Purge Cart |
| HIAPER | High-Performance Instrumented Airborne Platform For Environmental Research |
| UNU | United Nations University |
| LRU | Laser Recording Unit |
| LDR | LIDAR |
| GTCSM | Global Tropospheric Chemistry Systems Model |
| GARDIAN | GBL Point Defense System |
| ARPS | Advanced Regional Prediction System |