Velocity azimuth display derived wind profiles from the hurricane boundary layer

Richard J. Krupar, John L. Schroeder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Historical Next Generation (NEXRAD) Weather Surveillance Radar-1988 Dop-pler (WSR-88D) Level II data were obtained from the National Climate Data Center (NCDC) for 34 tropical cyclones (TC) that made landfall in the USA between 1995 and 2012. A modified Velocity Azimuth Display (VAD) technique was employed to generate horizontal wind speed and direction profiles. Profiles were binned with increasing height and normalized by the mean boundary layer (MBL) wind speed to assess mean structure and variance within the annulus. Over 20,000 wind profiles were analyzed in a storm-relative framework and composited to examine storm-relative dependencies. Preliminary results suggest that the presence of TC jet-like profiles are likely to occur near the radius of maximum wind. Maximum near-surface wind measurements were compared with the TC jet acquired using the VAD profile and initial findings indicate that the TC jet can be adjusted to compare well with the near-surface wind speed time histories.

Original languageEnglish
Title of host publication12th Americas Conference on Wind Engineering 2013, ACWE 2013
Subtitle of host publicationWind Effects on Structures, Communities, and Energy Generation
Pages846-858
Number of pages13
StatePublished - 2013
Event12th Americas Conference on Wind Engineering 2013: Wind Effects on Structures, Communities, and Energy Generation, ACWE 2013 - Seattle, WA, United States
Duration: Jun 16 2013Jun 20 2013

Publication series

Name12th Americas Conference on Wind Engineering 2013, ACWE 2013: Wind Effects on Structures, Communities, and Energy Generation
Volume2

Conference

Conference12th Americas Conference on Wind Engineering 2013: Wind Effects on Structures, Communities, and Energy Generation, ACWE 2013
CountryUnited States
CitySeattle, WA
Period06/16/1306/20/13

Keywords

  • MBL
  • Radar
  • TC Jet
  • VAD profiles
  • Wind reduction factors

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  • Cite this

    Krupar, R. J., & Schroeder, J. L. (2013). Velocity azimuth display derived wind profiles from the hurricane boundary layer. In 12th Americas Conference on Wind Engineering 2013, ACWE 2013: Wind Effects on Structures, Communities, and Energy Generation (pp. 846-858). (12th Americas Conference on Wind Engineering 2013, ACWE 2013: Wind Effects on Structures, Communities, and Energy Generation; Vol. 2).