| Acronym | Meaning |
| GREM | Geopotential Research Explorer Mission |
| AE | Architect/engineer |
| BFPQ | Block Floating Point Quantizer |
| UNCHE OR UNCHE | United Nations Conference On The Human Environment |
| ACHEM | Atmospheric Chemistry Model |
| PRT | Pulse Repetition Time |
| UMF | User Master File |
| PPU | Peripheral Processor Unit |
| IMSL | International Mathematical And Statistical Library |
| PAGES | Past Global Changes |