| Acronym | Meaning |
| I2L | Integrated Injection Logic |
| GSFC | Goddard Space Flight Center |
| VTVM | Vacuum Tube Voltmeter |
| FIFE II | First ISLSCP Field Experiment II |
| NASN | National Air Surveillance Network |
| PAR | Photosynthetically Active Radiation |
| EGD | Effluent Guidelines Division |
| SZOLD | Skewed Zeroth Order Logaorithmic Distribution Function |
| USAF | United States Air Force |
| SLW | Supercooled Liquid Water |