Doppler Radar

Doppler radar is the use of doppler effect from outsent microwaves. Doppler is the primary tool of weather forecasting as it can determine precipitation and windspeed along with cloud cover. Doppler is a science advancing all the time, and is found in fields ranging from police radar guns to air traffic control.




Found - http://mirror.bom.gov.au/weather/radar/about/images/doppler.gif