| Acronym | Meaning |
| AGARD | Advisory Group For Aeronautical Research And Development |
| GDP | Gross Domestic Product |
| ITS | Instrument Technical Specification |
| SPC | Small Particle Count (or Counter) |
| EDA | Ecosystem Dynamics And The Atmosphere |
| ISOS | International Southern Ocean Study |
| LERC | Lewis Research Center |
| CAS | Commission For Atmospheric Science |
| AISC | Assessment And Information Services Center |
| TIROS I | Television Infrared Observation Satellite |