| Acronym | Meaning |
| BITNET | Because It's Time Network |
| NPOP | NASA Polar Orbiting Platform |
| CALTECH | California Institute Of Technology |
| PD | Positive Definite |
| IAGA | International Association Of Geomagnetism And Aeronomy |
| RACOON | Radiation Controlled Balloon |
| NOAANET | NOAA Network |
| NIGEC | National Institute For Global Environmental Change |
| BRS | Bibliographic Retrieval Service |
| AOL | Airborne Oceanographic LIDAR |