Doppler Radar Map

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This is an example of a Doppler radar of Hurricane Katrina that hit New Orleans in August of 2005.  The reason this is an example of Doppler radar is because it uses microwave radiation and a directional antenna to receive and measure the time of arrival of reflected pulses from distant objects.  In this case it to break through cloud cover and provide detailed information in regards to the hurricanes location, direction, strength, etc.