| Acronym | Meaning |
| Z-R | Relationship |
| FCC | Federal Communications Commission |
| IAGW | International Acoustic Gravity Waves |
| GLOCHEM | Global Atmospheric Chemistry (or Chemical) Survey |
| SSI | Strategic Simulation Initiative |
| TOMS | Total Ozone Mapping Spectrometer |
| UNESCO | United Nations Educational |
| STEP | Solar Terrestrial Energy Program |
| MECCA | Model Evaluation Consortium For Climate Assessment |
| GARP | Global Atmospheric Research Program |