| Acronym | Meaning |
| MSLP | MSL Pressure |
| AOT | Aerosol Optical Thickness |
| NESDIS | National Environmental Satellite |
| APP | AVHRR Polar Pathfinder |
| MODIS-N | MODerate-resolution Imaging Spectroradiometer-Nadir (EOS) |
| EM | ElectroMagnetic |
| CERES | Clouds And The Earth's Radiant Energy System (EOS) |
| HZ | Hertz |
| CAC | Climate Analysis Center |
| ASPT | Advanced Satellite Products Team (NOAA/ORA) |