| Acronym | Meaning |
| DSAP | DOE Special Analysis Project |
| IASPEI | International Association Of Seismology And Physics Of The Earth's Interior |
| DCX | Delta Clipper Experimental |
| PP | Parts Per |
| TWERLE | Tropical Wind |
| NSTS | National Space Transportation System |
| NAILS | NCAR Airborne Infrared Lidar System |
| IGU | International Geographical Union |
| EROS | Earth Resources Observation System |
| FSS | Facilities Support Services |