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On Optimal Radar Reflectivity Processing
Publisher: American Meteorological Society
Abstract: A format for an optimal post-detection integration is discussed. The measurement cells in the integration scheme have equal down-range and cross-range resolution to conserve more of the variability of the precipitation ...
Long-Term Radar Observations of the Melting Layer of Precipitation and Their Interpretation
Publisher: American Meteorological Society
Abstract: In this study, 600 h of vertically pointing X-band radar data and 50 h of UHF boundary layer wind profiler data were processed and analyzed to characterize quantitatively the structure and the causes of the radar signature ...
Instrumental Uncertainties in Z–R Relations
Publisher: American Meteorological Society
Abstract: Intercomparisons among three different sensors for ground-based measurement of drop size distributions are presented: the Joss?Waldvogel distrometer, the optical spectro-pluviometer, and the precipitation occurrence sensor ...
Modeling of the Melting Layer. Part I: Dynamics and Microphysics
Publisher: American Meteorological Society
Abstract: To obtain the full description of the dynamical and microphysical finescale structures required for the computation of the radar-derived brightband parameters, a numerical model has been developed. A bulk microphysics ...
Snow Studies. Part III: Theoretical Derivations for the Ensemble Retrieval of Snow Microphysics from Dual-Wavelength Vertically Pointing Radars
Publisher: American Meteorological Society
Abstract: s a first step toward retrieval of snow microphysics from two vertically pointing radars operating at X band and W band, a theoretical model of snow microphysics is formulated in which the number of unknown parameters is ...
Snow Studies. Part IV: Ensemble Retrieval of Snow Microphysics from Dual-Wavelength Vertically Pointing Radars
Publisher: American Meteorological Society
Abstract: ased on the theory developed in Part III, this paper introduces a new method to retrieve snow microphysics from ground-based collocated X- and W-band vertically pointing Doppler radars. To take into account the variety of ...
Optimization of Dynamic Retrievals from a Multiple-Doppler Radar Network
Publisher: American Meteorological Society
Abstract: Recently, Protat and Zawadzki described an analysis method to retrieve the three wind components and their temporal derivatives from measurements collected by a bistatic multiple-Doppler radar network deployed around ...
Effect of Nonuniform Beam Filling on the Propagation of the Radar Signal at X-Band Frequencies. Part I: Changes in the k(Z) Relationship
Publisher: American Meteorological Society
Abstract: Most attenuation correction algorithms are based on the assumption of an average, range-independent power-law relationship, k = aZb, between attenuation k and reflectivity Z. This paper analyzes how nonuniform beam filling ...
A Comparison of Two Techniques for Generating Nowcasting Ensembles. Part I: Lagrangian Ensemble Technique
Publisher: American Meteorological Society
Abstract: agrangian extrapolation of recent radar observations is a widely used deterministic nowcasting technique in operational and research centers. However, this technique does not account for errors due to changes in precipitation ...
A Comparison of Two Techniques for Generating Nowcasting Ensembles. Part II: Analogs Selection and Comparison of Techniques
Publisher: American Meteorological Society
Abstract: owcasting is the short-range forecast obtained from the latest observed state. Currently, heuristic techniques, such as Lagrangian extrapolation, are the most commonly used for rainfall forecasting. However, the Lagrangian ...