| Acronym | Meaning |
| YAG | Yttrium |
| CASW | Council For The Advancement Of Science Writing |
| TUTT | Tropical Upper-tropospheric Trough |
| MDR | Manually Digitized Radar |
| MPIF | Message Passing Interface Forum |
| PHIGS | Portable Hierarchical Image And Graphic Standard |
| HDF | Hierarchical Data Format |
| OMO | Orbiting Meteorological Observatory |
| EMA | Electrodynamics Of The Middle Atmosphere |
| AFA | American Forestry Association |