| Acronym | Meaning |
| TAP | Diffusion Transport Models |
| NASCO | NAS Committee On Oceanography |
| DIB | Disabilities Issues Board |
| IGU | International Geographical Union |
| NPSNET | NASCOM Packet Switched Subnetwork |
| ESML | Earth Science Markup Language |
| RAWS | Remote Automatic Weather Station |
| APM | Axial Power Monitor |
| SOI/MDI | Solar Oscillations Imager/Michelson Doppler Imager |
| USC-GARP | United States Committee For GARP |