Comments on "How does the boundary layer contribute to eyewall replacement cycles in axisymmetric tropical cyclones?"

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Authors
Montgomery, Michael T.
Abarca, Sergio F.
Smith, Roger K.
Wu, Chun-Chieh
Huang, Yi-Hsuan
Subjects
Advisors
Date of Issue
2014-12
Date
Publisher
American Meteorological Society
Language
Abstract
In a recent paper, Kepert (2013, hereafter K13) investigated the theoretical role of the boundary layer in eyewall replacement cycles. Specifically, he used a family of steady-state, axisymmetric hurricane boundary layer models to examine the boundary layer response to an imposed radial profile of tangential winds with two wind maxima. Based on these solutions, he proposed a new feedback mechanism for secondary eyewall formation (SEF) and pointed to the role of the underlying boundary layer dynamics in this process. Specifically, he proposed (abstract) that ‘‘the boundary layer contributes to the formation of outer eyewalls through a positive feedback among the local enhancement of the radia vorticity gradient, the frictional updraft, and convection,’’ and concluded (section 6) that ‘‘supergradient flow ... is not essential to SEF.’’
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1175/JAS-D-13-0286.1
Series/Report No
Department
Meteorology
Organization
Identifiers
NPS Report Number
Sponsors
National Science Foundation
Naval Postgraduate School
National Science Council of Taiwan
German Research Council
Funder
Award AGS 0733380 (NSF)
Grant NSC 101-211-M-002-008-MY3
Grant SM30-23 (GRC)
Format
11 p.
Citation
M.T. Montgomery, S.F. Abarca, R.K. Smith, C. Wu, Y. Huang, "Comments on "How does the boundary layer contribute to eyewall replacement cycles in axisymmetric tropical cyclones?", Journal of the Atmospheric Sciences, v. 71 (2014), pp. 4682-4691
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Rights
This 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.
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