| Acronym | Meaning |
| AEN | Administrative Exception Note |
| K | A Symbol For Planetary Wave Number |
| CCMS | CCM0B |
| PSC | Polar Stratospheric Cloud |
| RAOBS | Radiosonde Observations |
| SMMR | Scanning Multichannel Microwave Radiometer |
| CARSS | Center For Atmospheric And Remote Sounding Studies |
| DAM | Data Access Management |
| LME | Layer Management Entity |
| EERU | Environmental Emergency Response Unit |