| Acronym | Meaning |
| ANL-E | Argonne National Laboratory-East |
| TDL | Techniques Development Lab |
| PMB | Performance Measurement Baseline |
| PC | Geomagnetic Pulsations |
| IUGS | International Union Of Geological Sciences |
| DRL | Data Requirements List |
| AMEX | Australian Monsoon EXperiment |
| IGY | International Geophysical Year |
| BASIS | Battelle Automated Search Information System |
| STA | System Technology Associates |