| Acronym | Meaning |
| MSI | Measurements |
| M-UCSD | University Of California At San Diego |
| NCRP | National Council On Radiation Protection And Measurement |
| AER | Advanced Electric Reactor |
| ADA | Applied Decision Analysis |
| I/ O | Input/output |
| PC | Geomagnetic Pulsations |
| AIMS | Advanced Information Management Systems |
| ICAS | Interdepartmental Committee On Atmospheric Science |
| EL NI-O | The Little Boy |