An effective radius of the sea surface enthalpy flux for the maintenance of a tropical cyclone

Y. Miyamoto, T. Takemi

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This study found that there is a radius within which the sea surface flux for moist enthalpy plays a vital role in determining the intensity of a tropical cyclone. From the results of the numerical experiments using an axisymmetric nonhydrostatic model, it was shown that when the sea surface fluxes are modified within the radius, the intensity suddenly changes on a short timescale. As long as the surface enthalpy flux diminishes outside this radius, the tropical cyclone intensity does not decrease. In the simulated tropical cyclone, this radius locates 7-8 times the radius of the maximum wind speed.

Original languageEnglish
Pages (from-to)278-282
Number of pages5
JournalAtmospheric Science Letters
Volume11
Issue number4
DOIs
Publication statusPublished - 2010 Oct 1
Externally publishedYes

Keywords

  • Air-sea interaction
  • Enthalpy flux
  • Tropical cyclone

ASJC Scopus subject areas

  • Atmospheric Science

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