Retrieval of clear-air turbulent dissipation rate using spectral width measured by wind profiler

From the formation mechanism of the wind profiler radar’s echoes, this paper studied a retrieval method of the turbulent kinetic energy dissipation rate from spectral width measured by a wind profiler. Two key steps of the method are extracting spectral width contributed by turbulence and calculating turbulent dissipation rate based on the relation between turbulent dissipation rate and turbulent spectral width. The paper also analyzed the data of spectral width measured by wind profiler in Hefei and the result is that the turbulent kinetic energy dissipation rate over Hefei at the height of 300 m distributes between 10-4 and 10-1 m2/s3. The result accords with theory, so the retrieval method is viable.