Radar Reflectivity
Weather
The sum of all backscattering cross-sections (e.g., precipitation particles) in a pulse resolution volume divided by that volume. The radar reflectivity can be related to the radar reflectivity factor through the dielectric constant term |K|^2, and the radar wavelength.
Climate Change
A measure of the efficiency of a radar target intercepting and returning radio energy. It depends upon the size, shape, aspect, and dialectic properties of that target.
- — ARM Climate Research Glossary retrieved 2014-06-12