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RISComments on “Describing the Shape of Raindrop Size Distributions Using Uncorrelated Raindrop Mass Spectrum Parameters”
Publisher: American Meteorological Society
Errors in Estimating Raindrop Size Distribution Parameters Employing Disdrometer and Simulated Raindrop Spectra
Publisher: American Meteorological Society
Abstract: There have been debates and differences of opinion over the validity of using drop size distribution (DSD) models to characterize precipitation microphysics and to retrieve DSD parameters from multiparameter radar measurements. ...
Detection of Ground Clutter for Dual-Polarization Weather Radar Using a Novel 3D Discriminant Function
Publisher: American Meteorological Society
Abstract: AbstractA novel 3D discriminant function is introduced as part of a ground clutter detection algorithm for improving weather radar observations. The 3D discriminant function utilizes the phase fluctuations of the received ...
Spaced-Antenna Interferometry to Detect and Locate Subvolume Inhomogeneities of Reflectivity: An Analogy with Monopulse Radar
Publisher: American Meteorological Society
Abstract: The theory of spaced-antenna interferometry (SAI) is formulated to detect and locate deterministic objects and reflectivity inhomogeneities embedded within the phased-array weather radar?s resolution volume V6 and to improve ...
Spaced-Antenna Interferometry to Measure Crossbeam Wind, Shear, and Turbulence: Theory and Formulation
Publisher: American Meteorological Society
Abstract: The theory of measuring crossbeam wind, shear, and turbulence within the radar?s resolution volume V6 is described. Spaced-antenna weather radar interferometry is formulated for such measurements using phased-array weather ...
Comparison of Polarimetric Radar Drop Size Distribution Retrieval Algorithms
Publisher: American Meteorological Society
Abstract: Recently, two physically based algorithms, the ?beta? (?) method and the ?constrained-gamma? method, have been proposed for retrieving the governing parameters of the gamma drop size distribution (DSD) from polarimetric ...
Simulations of Polarimetric Radar Signatures of a Supercell Storm Using a Two-Moment Bulk Microphysics Scheme
Publisher: American Meteorological Society
Abstract: A new general polarimetric radar simulator for nonhydrostatic numerical weather prediction (NWP) models has been developed based on rigorous scattering calculations using the T-matrix method for reflectivity, differential ...
Fuzzy Logic Classification of S-Band Polarimetric Radar Echoes to Identify Three-Body Scattering and Improve Data Quality
Publisher: American Meteorological Society
Abstract: he three-body scatter signature (TBSS) is a radar artifact that appears downrange from a high-radar-reflectivity core in a thunderstorm as a result of the presence of hailstones. It is useful to identify the TBSS artifact ...
Winter Precipitation Liquid–Ice Phase Transitions Revealed with Polarimetric Radar and 2DVD Observations in Central Oklahoma
Publisher: American Meteorological Society
Abstract: bservations and analysis of an ice?liquid phase precipitation event, collected with an S-band polarimetric KOUN radar and a two-dimensional video disdrometer (2DVD) in central Oklahoma on 20 January 2007, are presented. ...
Improving Parameterization of Rain Microphysics with Disdrometer and Radar Observations
Publisher: American Meteorological Society
Abstract: Disdrometer observations indicate that the raindrop size distribution (DSD) can be represented by a constrained-gamma (CG) distribution model. The model is used to retrieve DSDs from polarization radar measurements of ...