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dc.contributor.authorAbarca, Sergio F.
dc.contributor.authorMontgomery, Michael T.
dc.contributor.authorMcWilliams, James C.
dc.date.accessioned2018-03-06T17:20:45Z
dc.date.available2018-03-06T17:20:45Z
dc.date.issued2015-08-14
dc.identifier.citationAbarca, S. F., M. T. Montgomery, and J. C. McWilliams (2015), The azimuthally averaged boundary layer structure of a numerically simulated major hurricane, J. Adv. Model. Earth Syst., 7, 1207–1219, doi:10.1002/ 2015MS000457
dc.identifier.urihttp://hdl.handle.net/10945/57131
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.1002/2015MS000457
dc.descriptionThe data used in this paper can be accessed by emailing the first author at sergio.abarca@noaa.gov
dc.description.abstractThis work examines the azimuthally averaged boundary layer structure of a numerically simulated hurricane. We nominally define the hurricane boundary layer as the layer in which the effects of surface friction are associated with significant departures from gradient wind balance. The boundary layer in the intensifying primary and forming secondary eyewalls is found to be nonlinear. At large radii, exterior to the eyewalls, Ekman-like balance as traditionally defined, is found to hold true. Where significant departures from Ekman-like balance are found, the departures are characterized by large vertical advection of horizontal velocity through the depth of the boundary layer. Shock-like structures are not found to be prominent in the azimuthally averaged view of the vortex boundary layer, with the largest azimuthally averaged radial gradients of the radial and tangential velocities being on the order of only a few meters per second per kilometer. Also, in the radial regions of the eyewalls, at the height where the averaged tangential wind is a maximum, the radial advection of radial velocity is an order of magnitude smaller than the agradient force per unit mass. Some physical implications of these findings are discussed.en_US
dc.description.sponsorshipNational Research Council (NRC) Research Associateship Program
dc.description.sponsorshipNaval Postgraduate School
dc.format.extent13 p.
dc.publisherAGU Publications
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleThe azimuthally averaged boundary layer structure of a numerically simulated major hurricaneen_US
dc.typeResearch Article
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMeteorology
dc.subject.authorThe hurricane’s inner core boundary layer is found to be nonlinear
dc.subject.authorThere are departures from Ekman-like balance in the hurricane boundary layer
dc.subject.authorAzimuthally averaged hurricane boundary layer lacks shock-like structures
dc.description.funderNational Science Foundation Awards AGS 0733380en_US
dc.description.funderNational Science Foundation Awards IAA-1313948en_US


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