| Acronym | Meaning |
| GOS | Geomagnetic Observing System |
| SCGB | Special Committee For The Geosphere-Biosphere |
| ITC | Information Technology Council |
| EGP | Exterior Gateway Protocol |
| MMD | Mass Median Diameter |
| OTA | Office Of Technology Assessment |
| GSE | Ground Support Equipment |
| MS | The Company Microsoft |
| LGSOWG | Landsat Ground Station Operators Working Group |
| FMS | French Meteorological Society |