| Acronym | Meaning |
| ARIN | Aerospace Resource Information Network |
| PDAM | Point Data Access And Management |
| NAILS | NCAR Airborne Infrared Lidar System |
| EM | Evaluation Model |
| ASTIA | Armed Services Technical Information Agency |
| FOF | Field Observing Faciltilty |
| CAGE | Continental Africa GATE Experiment |
| GGEM | Gravity Gradiometer Explore Mission |
| SAS | Statistical Analysis System |
| METEOSAT | Meteorological Satellite |