| Acronym | Meaning |
| UARC | Upper Atmosphere Research Corporation |
| IRS | Information Retrieval Service |
| EOPM | Electro-optic Phase Modulated |
| SPAN | Space Physics Analysis Network |
| PLDS | Pilot Land Data System |
| MIGS | MASnet Internet Gateway Server (or System) |
| ABL | Atmospheric Boundary Layer |
| AT | IBM Advanced Technology Personal Computer |
| ODE | Ordinary Differential Equation |
| AEP | Alkaline Earth Precipitate |