| Acronym | Meaning |
| ELP | Emission Line Polarimeter |
| PPB | Parts Per Billion |
| UID | User Identification |
| GRASP | Graphic Animation System For Professionals |
| IASH | International Association Of Scientific Hydrology |
| ITIR | Intermediate Thermal Infrared Radiometer |
| AM | Ampex |
| FO | Field Office |
| CCRS | Canada Centre For Remote Sensing |
| NMC | National Meteorological Center |