| Acronym | Meaning |
| M | Meter(s) |
| EPA | Environmental Protection Agency (U.S.) |
| NASDA | National Space Development Agency (Japan) |
| AMS | American Meteorological Society |
| CAC | Climate Analysis Center |
| MISR | Multi-angle Imaging Spectro-Radiometer (EOS) |
| IRIS | Infrared Radiation Interferometer Spectrometer (1960s) |
| V | Volts |
| NCAR | National Center For Atmospheric Research |
| TOVS | TIROS Operational Vertical Sounder |