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Use of Polarization to Characterize Precipitation and Discriminate Large Hail
Publisher: American Meteorological Society
Abstract: We examine the utility of the correlation coefficient between linear orthogonally polarized echoes for determining precipitation type and gauging hail size. Models and measurements from pure rain coincide in predicting ...
Rain Rate Estimates from Differential Polarization Measurements
Publisher: American Meteorological Society
Abstract: This paper presents an analysis of the accuracy of rain rate estimates from data observed with a radar that has alternating horizontal and vertical polarization. Theoretical accuracies of rain rates from the reflectivity, ...
Efficient Processing of Alternately Polarized Radar Signals
Publisher: American Meteorological Society
Abstract: Processing of simultaneous measurements of differential polarization parameters (differential reflectivity, ZDR, and differential phase shift, ?DP) and Doppler spectral moments is discussed. It is shown how ZDR and ?DP ...
Dependence of Reflectivity Factor—Rainfall Rate Relationship on Polarization
Publisher: American Meteorological Society
Abstract: The reflectivity factor (Z), rainfall rate (R) relationship for weather radars that probe precipitation at low elevation angles is sensitive to polarization. It is shown how to transform a relation that is valid with one ...
The 10-cm-Wavelength Polarimetric Weather Radar at NOAA's National Severe Storms Laboratory
Publisher: American Meteorological Society
Abstract: The NSSL Doppler radar has been upgraded to include polarimetric measurements and remote operations. We discuss details of thew upgrades and specifics concerning real-time computations of polarimetric variables. Tests and ...
Clutter Filtering and Spectral Moment Estimation for Doppler Weather Radars Using Staggered Pulse Repetition Time (PRT)
Publisher: American Meteorological Society
Abstract: In this paper, a new algorithm for the estimation of spectral parameters from the signal time series, collected using the staggered pulse repetition time (PRT) transmission in a Doppler weather radar, is presented. The ...
An Improved Clutter Filtering and Spectral Moment Estimation Algorithm for Staggered PRT Sequences
Publisher: American Meteorological Society
Abstract: In the staggered pulse repetition time (PRT) radar, the phase difference between the autocorrelations at lag T1 and T2 is used for velocity estimation. This paper investigates velocity estimates from the autocorrelation ...
Advantages of Rain Measurements Using Specific Differential Phase
Publisher: American Meteorological Society
Abstract: The following advantages of rain measurements using specific differential phase are examined: 1) immunity to beam blockage, 2) immunity to ground clutter canceling, and 3) case to isolate effects of anomalous propagation. ...
Precipitation and Attenuation Measurements at a 10-cm Wavelength
Publisher: American Meteorological Society
Abstract: On 9 June 1993, a squall line passed over the National Severe Storms Laboratory Cimarron radar and polarimetric data of this event were recorded. The line produced heavy rain and at one time was oriented north-south, ...
Unambiguous Range Extension by Overlay Resolution in Staggered PRT Technique
Publisher: American Meteorological Society
Abstract: In this paper a method is presented for separating overlaid echoes in a Doppler weather radar that uses a staggered pulse repetition time (PRT) transmission scheme to mitigate the effects of range?velocity ambiguities. In ...