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Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Both types of data can be analyzed to determine the structure of storms and their potential to cause several weathers.

Radar (Radio Detection and Ranging):

It is a device which uses electromagnetic waves in the microwaves region to detect location (range & direction), altitude, intensity and movement of moving and non-moving objects.

Doppler radar :

It is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance

Radar (Radio Detection and Ranging):

When the source and the signal are in relative motion to each other there is a change in the frequency observed by the observer. If they are moving closer frequency increases and vice

Doppler Weather Radar:

Based on Doppler principle the radar is designed to improve precision in long-range weather forecasting and surveillance using a parabolic dish antenna and a foam sandwich spherical radome.

DWR has the equipment to measure rainfall intensity, wind shear and velocity and locate a storm centre and the direction of a tornado or gust front Types.

Of Doppler Radars : Doppler radar can be divided into several different categories according to the wavelength which are L,S,C,X,K.

X band radars:

These radars are used for studies on cloud development because they can detect the tiny water particles and also used to detect light precipitation such as snow.

X band radars also attenuate (become less effective) very easily, so they are used for only very short range weather observation.

Due to the small size of the radar, it can therefore be portable like the Doppler on Wheels (DOW). Most major airplanes are equipped with an X band radar to pick up turbulence and other weather phenomena.

This band is also shared with some police speed radars and some space radars.