TITLE

A Dual-Polarization-Radar-Based Assessment of the 8 May 2003 Oklahoma City Area Tornadic Supercell

AUTHOR(S)
Romine, Glen S.; Burgess, Donald W.; Wilhelmson, Robert B.
PUB. DATE
August 2008
SOURCE
Monthly Weather Review;Aug2008, Vol. 136 Issue 8, p2849
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
On 8 May 2003, a tornadic supercell tracked through portions of the Oklahoma City, Oklahoma, metropolitan area and produced violent damage along portions of its path. This storm passed through the dense in situ radar network in central Oklahoma and provided close-range operational, prototype polarimetric and terminal Doppler weather radar observations of the storm as it made the transition into the tornadic phase. The time-evolving polarimetric features were scrutinized with regard to storm morphology, particularly as related to the development of a rear-flank downdraft pulse within the storm immediately preceding the long-track tornado event. Two new polarimetric terms are introduced, the Zdr shield and Kdp foot, along with a discussion of the orientation of the Zdr and Kdp columns relative to midlevel rotation signatures. Storm downdraft and gust front characteristics are discussed relative to polarimetric fields and background environment characteristics. Highlighted for this event are a “warm” forward-flank downdraft and a particularly cold rear-flank downdraft. Emphasis is also placed on demonstrating key polarimetric field characteristics relative to traditional features at low and midlevels defined in familiar conceptual models of severe storms.
ACCESSION #
33750480

 

Related Articles

  • Observations of Polarimetric Signatures in Supercells by an X-Band Mobile Doppler Radar. Snyder, Jeffrey C.; Bluestein, Howard B.; Venkatesh, Vijay; Frasier, Stephen J. // Monthly Weather Review;Jan2013, Vol. 141 Issue 1, p3 

    Polarimetric weather radars significantly enhance the capability to infer the properties of scatterers within a resolution volume. Previous studies have identified several consistently seen polarimetric signatures in supercells observed in the central United States. Nearly all of these studies...

  • Estimation of Surface Currents in the Adriatic Sea from Sequential Infrared Satellite Images. Notarstefano, Giulio; Poulain, Pierre-Marie; Mauri, Elena // Journal of Atmospheric & Oceanic Technology;Feb2008, Vol. 25 Issue 2, p271 

    The maximum cross-correlation (MCC) technique is utilized to estimate the Adriatic Sea surface currents in regions characterized by strong horizontal temperature gradients using sequential pairs of sea surface temperature images from the Advanced Very High Resolution Radiometer data collected...

  • A Time Series Weather Radar Simulator Based on High-Resolution Atmospheric Models. Cheong, B. L.; Palmer, R. D.; Xue, M. // Journal of Atmospheric & Oceanic Technology;Feb2008, Vol. 25 Issue 2, p230 

    A three-dimensional radar simulator capable of generating simulated raw time series data for a weather radar has been designed and implemented. The characteristics of the radar signals (amplitude, phase) are derived from the atmospheric fields from a high-resolution numerical weather model,...

  • Performance of the Precipitation Occurrence Sensor System as a Precipitation Gauge. Sheppard, B. E.; Joe, P. I. // Journal of Atmospheric & Oceanic Technology;Feb2008, Vol. 25 Issue 2, p196 

    The Precipitation Occurrence Sensor System (POSS) is a small X-band Doppler radar originally developed by the Meteorological Service of Canada for reporting the occurrence, type, and intensity of precipitation from Automated Weather Observing Stations. This study evaluates POSS as a gauge for...

  • The identification of objects in active-passive radar systems. O. Popova; S. Razin’kov // Measurement Techniques;Jun2008, Vol. 51 Issue 6, p649 

    Abstract  Methods of identifying objects in active-passive radar systems from the results of direction finding and a measurement of coordinates are analyzed and the efficiency of the identification is estimated.

  • The LOIS project and astrophysics. Guthmann, Axel W.; Thidé, Bo // AIP Conference Proceedings;2005, Vol. 745 Issue 1, p770 

    The LOFAR Outrigger In Scandinavia (LOIS) is planned to be an addition to the LOFAR (Low Frequency Array) project currently being built in the Netherlands. LOIS will provide radar capabilities and fully digital sensors capable of getting complete vectorial information on electricmagnetic fields....

  • Comments on “Unusually Long Duration, Multiple-Doppler Radar Observations of a Front in a Convective Boundary Layer”. Schultz, David M. // Monthly Weather Review;Dec2007, Vol. 135 Issue 12, p4237 

    Stonitsch and Markowski perform multiple-Doppler radar analyses of a cold front over Oklahoma and Kansas. Despite their interesting results, their explanations include a number of misconceptions about cold fronts. These misconceptions include the proper interpretation of the frontogenesis...

  • Deep Look. Fulchum, David A. // Aviation Week & Space Technology;1/17/2005, Vol. 162 Issue 3, p403 

    The article informs that first deliveries are being made of a new, secrecy-shrouded radar that soon will be carried by U.S. Navy F/A-18E/F Super Hornets. Raytheon officials say they delivered the first low-rate initial production (LRIP) radar to Boeing a week ahead of schedule. They expect to...

  • Characteristic current decomposition and radar cross-section analysis for perfectly electrically conducting bodies. Bouche, Daniel; Collino, Francis; Morel, Yoann; Vacus, Olivier // IMA Journal of Numerical Analysis;Jan2015, Vol. 35 Issue 1, p454 

    We review the characteristic current decomposition, first introduced by Garbacz (1968, A generalized expansion for radiated and scattered field. Ph.D. Dissertation, Ohio State University, Columbus) and then by Harrington & Mautz (1971, Theory of characteristic modes for conducting bodies. IEEE...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics