Affiliation:
1. Direction des Systemes d’Observation, Meteo-France, Trappes, France
Abstract
Abstract
The French operational radar network is being upgraded and expanded from 2002 to 2006 by Meteo-France in partnership with the French Ministry of the Environment. A detailed examination of the quality of the raw polarimetric variables is reported here. The analysis procedures determine the precision of the measurements and quantify errors resulting from miscalibration, near-radome interference, and noise effects. Correction methods to remove biases resulting from effective noise powers in the horizontal and vertical channels, radar miscalibration, and the system offset in differential propagation phase measurements are presented and evaluated. Filtering methods were also required in order to remove azimuthal dependencies discovered with fields of differential reflectivity and differential propagation phase. The developed data quality analysis procedures may be useful to the agencies that are in the process of upgrading their radar networks with dual-polarization capabilities.
Publisher
American Meteorological Society
Subject
Atmospheric Science,Ocean Engineering
Reference23 articles.
1. Radar calibration: Some simple approaches.;Atlas;Bull. Amer. Meteor. Soc.,2002
2. Quantitative cross validation of space-based and ground-based radar observations.;Bolen;J. Appl. Meteor.,2000
3. Polarimetric Doppler Weather Radar: Principles and Applications.;Bringi,2001
4. A new accuracy in determining rainfall rates and attenuation due to rain by means of dual-polarization measurements.;Bringi;IEE Conf. Publ.,1978
5. Technique for calibration of meteorological radars using differential phase.;Goddard;Electron. Lett.,1994
Cited by
43 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献