Friedrich, Katja and Hagen, Martin and Einfalt, Thomas (2006) A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity. Journal of Atmospheric and Oceanic Technology, 23, pp. 865-887. American Meteorological Society. doi: 10.1175/JTECH1920.1.
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Abstract
Over the last few years the use of weather radar data has become a fundamental part of various applications like rain-rate estimation, nowcasting of severe weather events, and assimilation into numerical weather prediction models. The increasing demand for radar data necessitates an automated, flexible, and modular quality control. In this paper a quality control procedure is developed for radar reflectivity factors, polarimetric parameters, and Doppler velocity. It consists of several modules that can be extended, modified, and omitted depending on the user requirement, weather situation, and radar characteristics. Data quality is quantified on a pixel-by-pixel basis and encoded into a quality-index field that can be easily interpreted by a nontrained end user or an automated scheme that generates radar products. The quality-index algorithms detect and quantify the influence of beam broadening, the height of the first radar echo, ground clutter contamination, return from non-weather-related objects, and attenuation of electromagnetic energy by hydrometeors on the quality of the radar measurement. The quality-index field is transferred together with the radar data to the end user who chooses the amount of data and the level of quality used for further processing. The calculation of quality-index fields is based on data measured by the polarimetric C-band Doppler radar (POLDIRAD) located in the Alpine foreland in southern Germany.
Item URL in elib: | https://elib.dlr.de/44923/ | ||||||||||||
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Document Type: | Article | ||||||||||||
Title: | A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity | ||||||||||||
Authors: |
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Date: | 2006 | ||||||||||||
Journal or Publication Title: | Journal of Atmospheric and Oceanic Technology | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
Volume: | 23 | ||||||||||||
DOI: | 10.1175/JTECH1920.1 | ||||||||||||
Page Range: | pp. 865-887 | ||||||||||||
Publisher: | American Meteorological Society | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | C-band Doppler radar, Doppler velocity, the Alps | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||
HGF - Program: | Space (old) | ||||||||||||
HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||
DLR - Research area: | Space | ||||||||||||
DLR - Program: | W EO - Erdbeobachtung | ||||||||||||
DLR - Research theme (Project): | W - Vorhaben Atmosphären- und Klimaforschung (old) | ||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||
Institutes and Institutions: | Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology | ||||||||||||
Deposited By: | Freund, Jana | ||||||||||||
Deposited On: | 06 Oct 2006 | ||||||||||||
Last Modified: | 31 Jul 2019 19:18 |
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