Details:

Journal Title:
Monthly Weather Review
Personal Author:
Weinhoff, Zachary B. ; Bluestein, Howard B. ; Wicker, Louis J. ; Snyder, Jeffrey C. ; Shapiro, Alan ; ... More +
Weinhoff, Zachary B. ; Bluestein, Howard B. ; Wicker, Louis J. ; Snyder, Jeffrey C. ; Shapiro, Alan ; Potvin, Corey K. ; Houser, Jana B. ; Reif, Dylan W. ; Less -
NOAA Program & Office:
CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) ;
CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) ; Less -
Description:
In many instances, synchronization of Doppler radar data among multiple platforms for multiple-Doppler analysis is challenging. This study describes the production of dual-Doppler wind analyses from several case studies using data from a rapid-scanning, X-band, polarimetric, Doppler radar—the RaXPol radar—and data from nearby WSR-88Ds. Of particular interest is mitigating difficulties related to the drastic differences in scanning rates of the two radars. To account for differences in temporal resolution, a variational reflectivity tracking scheme [a spatially variable advection correction technique (SVAC)] has been employed to interpolate (in a Lagrangian sense) the coarser temporal resolution data (WSR-88D) to the times of the RaXPol volume scans. The RaXPol data and temporally interpolated WSR-88D data are then used to create quasi–rapid scan dual-Doppler analyses. This study focuses on the application of the SVAC technique to WSR-88D data to create dual-Doppler analyses of three tornadic supercells: the 19 May 2013 Edmond–Carney and Norman–Shawnee, Oklahoma, storms and the 24 May 2016 Dodge City, Kansas, storm. Results of the dual-Doppler analyses are briefly examined, including observations of the ZDR columns as a proxy for updrafts. Potential improvements to this technique are also discussed.
Keywords:
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Doppler Radar
Tornadoes

Source:
Mon. Wea. Rev. (2018) 146 (9): 2949–2971.
DOI:
https://doi.org/10.1175/MWR-D-17-0360.1
Document Type:
Journal Article ;
Funding:
Grant no. NA11OAR4320072 ;
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:349a28fb4fd775847a6e1733a6433e9acc727c677c63363cfe01370a543c469a
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