| Acronym | Meaning |
| CAC | California Administrative Code |
| ALPEX | Alpine Experiment |
| PDM | Pulse Duration Modulation |
| MRIR | Medium Resolution Infrared Radiometer |
| ACV | At-completion Variance |
| BLPS | Boundary Layer Profiler System |
| KDP | Potassium Dihydrogen Phosphate |
| PSC | Polar Stratospheric Cloud |
| FB | Blanketing Frequency |
| NDTP | North Dakota Thunderstorm Project |