A Review on “Weather Surveillance Radar”

This paper strives to make an impact on Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar which locates precipitation and estimates its type (rain, snow, hail etc.). Soon after the World War II, surplus radars were used and since then, weather radar has evolved and is now used by national weather services and research departments. Modern weather radars i.e. Doppler radars are capable of detecting the motion of rain droplets in addition to the intensity of the precipitation to determine the structure of storms and their potential to cause severe weather. Hence, it is a key forecasting tool. Weather radars send directional pulses of microwave radiation, on the order of a microsecond long, using a cavity magnetron or klystron tube connected by a waveguide to a parabolic antenna and receives the return signals from particles in the air on the order of a millisecond, which is a thousand times longer than the pulse duration.