| Acronym | Meaning |
| CH4 | Methane |
| AVIRIS | Airborne Visible InfraRed Imaging Spectrometer (JPL) |
| POES | Polar Operational Environmental Satellite |
| DOIT | Department Of Information Technology (UW-MSN) |
| SSU | Stratospheric Sounding Unit (TOVS) |
| AMSU | Advanced Microwave Sounder Unit (EOS) |
| MAMS | Multispectral Atmospheric Mapping Sensor |
| GMT | Greenwich Mean Time (repl. By UTC) |
| C | Centigrade |
| PPM | Part Per Million |