| Acronym | Meaning |
| WSO | Weather Service Office |
| ATDRSS | Advanced TDRSS |
| GCIP | GEWEX Continental-Scale International Project |
| RPI | Rensselaer Polytechnec Institute |
| DPMB | Defense Programs Management Board |
| AWPG | Aviation Weather Products Generator |
| PEL | Photo-electron Layer |
| IAPO | International Association Of Physical Oceanography |
| MSU | Microwave Sounding Unit |
| WACCM | Whole Atmosphere Community Climate Model |