A system called Doppler lidar uses a light beam to measure the change in frequency of falling precipitation, cloud particles, and dust.

Question

Quizplus · Accepted Answer

Doppler lidar measures the change in frequency (Doppler shift) of a light beam that is scattered back to the instrument from falling precipitation, cloud particles, and dust, allowing for the determination of their velocity relative to the lidar system.

A System Called Doppler Lidar Uses a Light Beam to Measure