| Acronym | Meaning |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| AMSU | Advanced Microwave Sounder Unit (EOS) |
| K | Kilo |
| ESSP | Earth System Science Pathfinder Mission (ESSP) |
| MISR | Multi-angle Imaging Spectro-Radiometer (EOS) |
| PPM | Part Per Million |
| ENSO | El Ni?o/Southern Oscillation |
| MODIS-N | MODerate-resolution Imaging Spectroradiometer-Nadir (EOS) |
| V | Volts |
| M | Meter(s) |