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Title: Rain retrieval from dual-frequency radar Doppler spectra: validation and potential for a midlatitude precipitating case-study
Authors: Tridon, Frederic
Battaglia, Alessandro
Luke, E.
Kollias, P.
First Published: 27-Jan-2017
Publisher: Wiley
Citation: Quarterly Journal of the Royal Meteorological Society, 2017, 143 (704), pp. 1364-1380
Abstract: A recently developed technique retrieving the binned raindrop size distributions (DSDs) and air state parameters from ground-based Ka and W-band radars Doppler spectra profiles is improved and applied to a typical midlatitude rain event. The retrievals are thoroughly validated against DSD observations of a 2D video disdrometer and independent X-band observations. For this case-study, profiles of rain rate, R, mean volume diameter and concentration parameter are retrieved, with low bias and standard deviations. In light rain (0.1 < R < 1 mm h−1), the radar reflectivities must be calibrated with a collocated disdrometer which introduces random errors due to sampling mismatch between the two instruments. The best performances are obtained in moderate rain (1 < R < 20 mm h−1) where the retrieval is providing self-consistent estimates of the absolute calibration and of the attenuation caused by antenna or radome wetness for both radars.
DOI Link: 10.1002/qj.3010
ISSN: 0035-9009
eISSN: 1477-870X
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © the authors, 2017. This is an open-access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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