Doppler Radar

 Doppler Effect is the increase or decrease in the frequency of light, sound or other waves as the source and observer move toward or away from each other. A Doppler Radar detects the wind dirrection, wind speed and precipitation's force. An example is the Doppler weather forecast is used to research about weather so that people can make predictions on precipitation, to calculate its motion and to estimate its type of rain hail snow. People mostly use pulse doppler-radar so that they can determine the motion of rain dopplers