dB Z
dB Z : A unit of radar reflectivity used in meteorology. The unit measures the amount of energy returned to a weather radar site as a function of the amount transmitted. The scale is logarithmic, a difference of 10 dB Z indicating a 10-fold increase in energy returned. For display purposes, dB Z values are grouped as follows: (Level 1, 18-30 dBZ) - Light precipitation. (Level 2, 30-38 dBZ) - Light to moderate rain (Level 3, 38-44 dBZ) - Moderate to heavy rain (Level 4, 44-50 dBZ) - Heavy rain (Level 5 50-57 dBZ) - Very heavy rain; hail possible (Level 6, >57 dBZ) - Very heavy rain and hail; large hail possible. The colorful "radar images" shown on television are actually plots of these levels
No records Found