Aspects of the baroclinic boundary layer

P. R. Bannon, T. L. Salem

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The Ekman-Taylor boundary layer model is solved for the case of a linear variation of the geostrophic wind with height. The two-layer model couples a Monin-Ibukhov similarity layer to an Ekman layer with a vertically constant eddy diffusivity. The presence of the thermal wind contributes both an along-isotherm and a cross-isotherm component to the boundary layer flow. The along-isotherm flow is supergeostrophic and results from the net downward transport of geostrophic momentum by the eddies. The cross-isotherm flow is toward the warm air and results from the Coriolis deflection of the geostrophic momentum-rich air aloft that has been mixed downward. The effect of the baroclinity (i.e., the thermal wind shear) on the wind field is conveniently summarized geometrically. -from Authors

Original languageEnglish (US)
Pages (from-to)574-596
Number of pages23
JournalJournal of the Atmospheric Sciences
Volume52
Issue number5
DOIs
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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