| Acronym | Meaning |
| GRM | Geopotential Research Mission |
| ADV | Atmospheric Dump Valve |
| HRDI | High Resolution Doppler Imager |
| IHOP 2002 | International H2O Project 2002 |
| CCB | Change Control Board |
| QPF | Quantitative Prediction Of Precipitation |
| IMS | Information Management Service |
| ACEC | American Consulting Engineers Council |
| SIGMA | Software For Interactive Graphics And Model Analysis |
| ACI | Automatic Closure And Interlock |