| Acronym | Meaning |
| CCL | Convection Condensation Level |
| IUPAB | International Union Of Pure And Applied Biophysics |
| SVAT | Surface Vegetation- Atmosphere Transfer |
| TRW SYSTEMS | Inc. |
| BCL | Battelle Columbus Laboratory |
| LM | Large Model |
| IOC | Inception Of Contract |
| AOC | Award Of Contract |
| IGC | International Geophysical Cooperation |
| IF | Intermediate Frequency |