| Acronym | Meaning |
| P/L-EX | Payload Executive |
| LMOS | Lake Michigan Ozone Study |
| APA | American Planning Association |
| MATEX | Massive Air Tracer Experiment |
| AQCR | Air Quality Control Region |
| GLS | GOMR Limb Sounder |
| NIDS | NEXRAD Information Dissemination Service |
| CAAC | Civil Aviation Administration Of China |
| REREX | Remote Read-out Experiment |
| DODS | Distributed Ocean Data System |