| Acronym | Meaning |
| NSPI | National Society For Programmed Instruction |
| HMES | Hough Mode Extensions |
| CAC | Climate Analysis Center |
| AQCR | Air Quality Control Region |
| HIS | High-resolution Interferometer Sounder |
| SERP | Strategic Environmental Research Program |
| ESDIM | Earth System Data And Information Management |
| CAPTEX | Cross-Appalachian Tracer Experiment |
| BDSP | Basic Data Set Project |
| VLA | Very Large Array |