| Acronym | Meaning |
| GPM | Geopotential Meter |
| DSL | Distributed Software Libraries |
| TWC | The Weather Channel |
| IUGS | International Union Of Geological Sciences |
| SSC'S | Sudden Storm Commencements |
| AEB | Auxiliary Equipment Building |
| ERACF | Environmental Radiation Ambient Monitoring System |
| ARES | Advanced Reentry System |
| PPS-PODS | Precise Position System- Precise Orbit Determination System |
| ISLSCP | International Satellite Land-Surface Climatology Project |