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Last update
12 Nov 2007

This page is maintained by
Chris Westbrook

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Real-time cloud radar images: Doppler spectra

   Radar reflectivity factor   Vertical velocity   Spectral width   Doppler spectra   Lidar backscatter coefficient
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   Archived images   How to interpret these images   Chilbolton Weather Web

Vertical Profiles of radar Doppler spectra - coded and uncoded

Two plots are shown here -
1. Radar spectra using pulse coding for improved sensitivity - note that in strong reflectivity gradients the coding can produce artifacts;
2. Uncoded spectra for comparison: less sensitive to clouds with low Z, but no artifacts.

These plots are updated once every hour.

Latest profile of Doppler spectra (pulse coding)
Latest profile of Doppler spectra (uncoded)

These images are generated every 60 minutes from data recorded by the 35-GHz cloud radar at Chilbolton, using programs written by Owain Davies, Robin Hogan, Darcy Ladd and Gareth Davies. For more information contact Robin Hogan.