| Acronym | Meaning |
 | AP | Action Plan |
| IGBP | International Geosphere-Biosphere Program |
| ALPS | Alternate Launch Point System |
| GCRP | Global Change Research Program |
| LMOS | Lake Michigan Ozone Study |
| LEDA | On-line Earthnet Data Access |
| AA | Adverse Action |
| IAEA | International Atomic Energy Agency |
| VHRR | Very High Resolution Radiometer |
| PNR | Profiler Network Review |
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