| Acronym | Meaning |
| GTOS | Global Terrestrial Observing System |
| IPEI | Ionospheric Plasma And Electrodynamics Instrument |
| NIR | Near IR |
| FIS | Financial Information System |
| FIFE II | First ISLSCP Field Experiment II |
| NPP | Net Primary Productivity |
| AES | Atmospheric Environment Service |
| IHOP | International H2O Project |
| CBO | Carrier Balloon/Omegasonde |
| SPTVAR | Special Purpose Test Vehicle For Atmospheric Research |