| Acronym | Meaning |
| POP | Photochemical Oxidation And Products |
| PD | Positive Definite |
| FREON | DuPont Trade Name |
| AGU | American Geophysical Union |
| TECAMS | Technical Conference On Automated Meteorological Systems |
| VRMS OR VRMS | Volt Root Mean Square |
| FRD | Forecast Research Division |
| AWU | Associated Western Universities |
| ESDIM | Earth System Data And Information Management |
| APS | Autocorrelated Photon Spectroscopy |