| Acronym | Meaning |
| ZWA | Zonal Wind Anomaly |
| FL2 | Second Flight Model |
| TAO | Tropical Atmosphere Ocean |
| ARIN | Aerospace Resource Information Network |
| KP | Low Magnetic Activity |
| ENDEX | Environmental Data Index |
| IRI | International Research Institute For Climate Prediction |
| OWRR | Office Of Water Resources Research |
| IGW | Internal Gravity Waves |
| ITOS | Improved Tiros Operational Satellite |