All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 97 58 25
PDF Downloads 39 16 0

Precipitation Characteristics at Vertical Incidence from Multiple Wavelength Doppler Radars

Gene B. WalkerNational Severe Storms Laboratory, NOAA, Norman, Okla. 73069

Search for other papers by Gene B. Walker in
Current site
Google Scholar
PubMed
Close
and
Peter S. Ray School of Electrical Engineering, University of Oklahoma, Norman 73069

Search for other papers by Peter S. Ray in
Current site
Google Scholar
PubMed
Close
Full access

Abstract

A vertically looking, multiple-wavelength Doppler radar technique to estimate vertical velocity, drop size distribution and turbulence is presented. The ratio of the Doppler spectra, corresponding to the drop fall velocities at two different wavelengths, is uniquely related to the ratio of the radar scattering cross sections at the appropriate temperature. These ratios are used to estimate drop fall velocities and therefore drop size distributions and vertical wind. Turbulence, which broadens the velocity power spectrum, can be estimated by deconvolution and the drop size distribution subsequently derived.

Abstract

A vertically looking, multiple-wavelength Doppler radar technique to estimate vertical velocity, drop size distribution and turbulence is presented. The ratio of the Doppler spectra, corresponding to the drop fall velocities at two different wavelengths, is uniquely related to the ratio of the radar scattering cross sections at the appropriate temperature. These ratios are used to estimate drop fall velocities and therefore drop size distributions and vertical wind. Turbulence, which broadens the velocity power spectrum, can be estimated by deconvolution and the drop size distribution subsequently derived.

Save