The diurnal cycle and the meridional extent of the tropics

Paul A Milewski, Esteban G Tabak

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Abstract

An explanation is proposed for the meridional extent of the Hadley cells: the diurnal waves forced by solar heating trapped between −30°and 30°. These baroclinic waves, we propose, give rise to the daily nature of tropical meteorology, and ultimately to the intensified mixing and circulation associated with the Hadley cells and the shape of the tropopause. This conceptual explanation is validated with basic scaling arguments and with two diurnally forced one-layer models: One linear and the other nonlinear, the latter with a simple closure for mixing and entrainment by breaking waves.
Original languageEnglish
Pages (from-to)233-240
Number of pages8
JournalPhysica D: Nonlinear Phenomena
Volume240
Issue number2
DOIs
Publication statusPublished - 2011

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tropical regions
tropical meteorology
baroclinic waves
solar heating
tropopause
cycles
entrainment
cells
closures
scaling

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The diurnal cycle and the meridional extent of the tropics. / Milewski, Paul A; Tabak, Esteban G.

In: Physica D: Nonlinear Phenomena, Vol. 240, No. 2, 2011, p. 233-240.

Research output: Contribution to journalArticle

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