DBZ (meteorology)

dBZ stands for decibel relative to Z. It is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity of a radar signal reflected off a remote object to the return of a droplet of rain with a diameter of 1 mm. It is proportional to the number of drops per unit volume and the sixth power of drops diameter and is thus used to estimate the rain or snow intensity. With other variables analyzed from the radar returns, it will help to determine the type of precipitation, too. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video