| Acronym | Meaning |
| ERG | External Review Group |
| EEID | EOSDIS External Interface Document |
| AFPEO/ST | Air Force Programs Executive Officer |
| NVAP | NASA Water Vapor Project |
| WGNE | Working Group On Numerical Experimentation |
| SIBIZMIR | Siberian Institute Of Terrestrial Magnetism |
| FMS | French Meteorological Society |
| EQS | Equatorial Scatter |
| SPAR | Spaceborne Rawinsonde |
| CCC | Cray Computer Corporation |