| Acronym | Meaning |
| IASH | International Association Of Scientific Hydrology |
| NENA | NOAA's Northeast-North Atlantic 2004 |
| LAPB | Local Analysis And Prediction Branch |
| EPICS | Energetic Pion Channel And Spectrometer |
| BDL | Boundary Layer |
| PDR | Preliminary Design Review |
| NAVSTAR | NAVigation Signal Timing And Ranging System |
| Z-R | Relationship |
| ETS | Emergency Transponder System |
| GLRS | Geodynamics (or Geoscience) Laser Ranging System |