English

Comments on "Isentropic Analysis of a Simulated Hurricane"

Atmospheric and Oceanic Physics 2016-07-18 v1 Fluid Dynamics Geophysics

Abstract

This paper describes Comments to the paper of Mrowiec et al. published in the J. Atmos. Sci. in May 2016 (Vol 73, Issue 5, pages 1857-1870) and entitled "Isentropic analysis of a simulated hurricane". It is explained that the plotting of isentropic surfaces (namely the isentropes) requires a precise definition of the specific moist-air entropy, and that most of existing "equivalent potential temperatures" lead to inaccurate definitions of isentropes. It is shown that the use of the third law of thermodynamics leads to a definition of the specific moist-air entropy (and of a corresponding potential temperature) which allow the plotting of unambigous moist-air isentropes. Numerical applications are shown by using a numerical simulation of the hurricane DUMILE.

Keywords

Cite

@article{arxiv.1607.04308,
  title  = {Comments on "Isentropic Analysis of a Simulated Hurricane"},
  author = {Pascal Marquet},
  journal= {arXiv preprint arXiv:1607.04308},
  year   = {2016}
}

Comments

7 pages, 6 color Figures, 2 Tables