| Acronym | Meaning |
| GPS | Geophysical Processor System |
| SDBE | Shear-Directed Balloon Experiment |
| LAGEOS-2 | Laser Geodynamics Satellite-2 |
| GCEC | Global Change And Ecological Complexity |
| METOBS | N/A |
| MD | Modernization Division |
| ATAC | Advanced Technology Advisory Committee |
| ZAMS | Zero Age Main Sequence |
| WMC | World Meteorological Center(s) |
| ITOS | Improved Tiros Operational Satellite |