| Acronym | Meaning |
| MDDS | Maintenance Decision Support System |
| AFPS | AWIPS Forecast Preparation System |
| ISO | International Standards Organization |
| ECMOP | Experimental Center For Mesoscale Ocean Predictions |
| SEM | Space Environment Monitor |
| AWIPS-90 | Advanced Weather Interactive Processing System For The 90's |
| GEM | Global Environmental Multiscale Model |
| IMSP | International Meteorological Service Program |
| FAS | Federation Of American Scientists |
| LED | Light Emitting Diode |