| Acronym | Meaning |
| DPMB | Defense Programs Management Board |
| EAC | Estimated Cost At Completion |
| REGCM2 | Regional Climate Model |
| R | Rayleigh |
| FTE | Full-time Equivalent |
| ESTP | Exploratory Shaft Test Plan |
| SDSMT | South Dakota School Of Mines & Technology |
| ACE | Aerosol Characteristics Experiment |
| OBP | Onboard Processor |
| ADI | Acceptable Daily Intake |