| Acronym | Meaning |
| SPL | SLATEC Plotting Library |
| AG | Australia Group |
| FNAL | Fermi National Accelerator Laboratory |
| GMSA | Global Multivariate Statistical Analysis |
| GTOS | Global Terrestrial Observing System |
| IBM PC | Generic Term For IBM Personal Computers |
| BAA | Buy American Act |
| IEIS | Integrated Earth Information Server |
| AIX | Advanced Interactive Executive |
| STSP | Solar Terrestrial Science Programme |