| Acronym | Meaning |
| APEX | APLE Prototype Experiment |
| LVDT | Linear Variable Differential Transformer |
| THIR | Temperature And Humidity Infrared Radiometer |
| NSTP | National Solar Terrestrial Program |
| IBM | International Business Machines Corporation |
| SONIC | SPAN Ocean Network Information Center |
| MRF | Medium-Range Forecast |
| SUB-MM | Submillimeter Spectrometer |
| NODC | National Oceanographic Data Center |
| PVC | Polyvinyl Chloride |