| Acronym | Meaning |
| MSLP | MSL Pressure |
| HRIR | High Resolution Infrared Radiometer |
| HSRL | High Spectral Resolution Lidar |
| MAS | MODIS Airborne Simulator |
| CRAS | CIMSS Regional Assimilation System |
| METEOSAT | METEOrological SATellite (European) |
| SSEC | Space Science And Engineering Center |
| NCDC | National Climatic Data Center |
| JPL | Jet Propulsion Laboratory |
| H2O | Water (vapor) |