| Acronym | Meaning |
| FIFRA | Federal Insecticide |
| GSD | Geometric Standard Deviation |
| BSD UNIX | Berkeley Software Distribution UNIX |
| FIAR | European Aviation Partnership |
| IWRS | Improved Weather Reconnaissance System |
| BATS | Biosphere-atmosphere Transfer Scheme |
| RCPG | Research Coordination And Planning Group |
| SNR | Signal-to-noise Ratio |
| ESM | Earth Systems Model |
| LERC | Lewis Research Center |