| Acronym | Meaning |
| ZTD | Zenith Tropospheric Signal Delay |
| SOLSTICE | Solar/Stellar Intercomparison Experiment |
| (AA3) | Accident Analysis Computer Program |
| HALOE | Halogen Occultation Experiment |
| UPO | UCAR Projects Office |
| SPL | SLATEC Plotting Library |
| DARE-2 | A Weather Service Work Station At PROFS |
| ADS | Aircraft Data Systems |
| CDCL | Contract Document Control List |
| ITWIS | Integrated Terminal Weather Information System |