| Acronym | Meaning |
 | HIRDLS | High-Resolution Dynamics Limb Sounder |
| IUE | International Ultraviolet Explorer |
| SYDNEY 2000 | Olympics In Sydney |
| NAFTA | North American Free Trade Agreement |
| PNA | Pacific/North American |
| TRIP | Thunderstorm Research International Program |
| THORPEX | The Observing System Research And Predictability Experiment |
| FUN | FL-4 Uniform Network Project |
| CCL | Convective Condensation Level |
| SSC | Scientific Steering Committee |
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