Applications of a Spatially Variable Advection Correction Technique for Temporal Correction of Dual-Doppler Analyses of Tornadic Supercells

Wienhoff, Zachary B.; Bluestein, Howard B.; Wicker, Louis J.; Snyder, Jeffrey C.; Shapiro, Alan; Potvin, Corey K.; Houser, Jana B.; Reif, Dylan W.

doi:10.1175/MWR-D-17-0360.1

i

Applications of a Spatially Variable Advection Correction Technique for Temporal Correction of Dual-Doppler Analyses of Tornadic Supercells

2018
By Wienhoff, Zachary B. ; Bluestein, Howard B. ; Wicker, Louis J. ; ...

Select the Download button to view the document

Please click the download button to view the document.

Details

Journal Title:

Monthly Weather Review
Personal Author:

Wienhoff, Zachary B. ; Bluestein, Howard B. ; Wicker, Louis J. ; Snyder, Jeffrey C. ; Shapiro, Alan ; Potvin, Corey K. ; Houser, Jana B. ; Reif, Dylan W.
NOAA Program & Office:

CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory)
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:

Doppler Radar Tornadoes Doppler Radar
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:sha-512:849010dbbc7d1cdf4a4cd2f7294c8306114433d872d70b5a2dc7d26bf56cc2012edcfc801ef98aeab87bac3129706455b482b03e3100d6fd768b8946d61cb4a1
Download URL:

https://repository.library.noaa.gov/view/noaa/25702/noaa_25702_DS1.pdf
File Type:

[PDF - 23.72 MB ]

ON THIS PAGE

Details

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.