Comments on “Nonlinear Response of a Tropical Cyclone Vortex to Prescribed Eyewall Heating with and without Surface Friction in TCM4: Implications for Tropical Cyclone Intensification”
Roger K. Smith
Montgomery, Michael T.
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In their paper, Heng and Wang (2016) purport to clarify what they believe is a recent debate concerning ‘‘whether surface friction contributes positively or negatively to tropical cyclone (TC) intensification’’ (p. 1315). The study is based on a thought experiment involving ‘‘two idealized numerical experiments, one without and the other with surface friction, using the fully compressible, nonhydrostatic TC model, version 4 (TCM4), with prescribed eyewall heating’’ (p. 1315). The ‘‘debate’’ appears to refer to the efficacy of the boundary layer spinup mechanism articulated by Smith et al. (2009) and its role in exerting a control on the dynamics of vortex intensification and structure change as discussed by Kilroy et al. (2016).
Journal of the Atmospheric SciencesThe article of record as published may be found at http://dx.doi.org/10.1175/jas-d-16-0163.1
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