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Radio Detection and Ranging (Radar)
Radio Detection and Ranging (Radar)
Sends pulses of electromagnetic energy into the atmosphere to find precipitation, determine its motion and intensity, and identify the precipitation intensity and type.
Common Radar Products
Common Radar Products
Shows power returned to the antenna after hitting precipitation at some tilt angle
Measured in dBZ (decibels)
Shows the velocity and motion of an echo along the direction of the radar beam
Only available with Doppler radars
Image Description: Doppler Radar:
Image of a Doppler radar. Note the radome (huge dome) which protects the rotating radar
Image Description: How a Doppler radar works
The radar rotates while sending beams of energy into the sky. The beam hits a target (such as rain) and returns the strength of the echo.
Radar Websites
Radar Websites
College of DuPage Mosaic Radar (composite of all CONUS radars)
College of DuPage Dual-Pol NEXRAD (can choose individual radars, navigate to top left of radar image and click "Radar Selection")
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Google Sites
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