| Acronym | Meaning |
| ISRIC | International Soil Reference And Information Centre |
| HIAPER | High-Performance Instrumented Airborne Platform For Environmental Research |
| AW | Annual Worth |
| SGI | Silicon Graphics Inc. |
| IRCAT | Infrared Radiometer To Detect (CAT) Horizontal Temperature Gradients |
| CAPTEX | Cross-Appalachian Tracer Experiment |
| EG&G | Inc. |
| DB | Direct Broadcast |
| IEIS | Integrated Earth Information Server |
| C&C | Consultation And Cooperation Agreement |