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Title: | Thermobaric flow |
Authors: | Kay, Anthony |
Keywords: | Baroclinic flow Frontogenesis Polar oceans Thermobaricity |
Issue Date: | 2001 |
Abstract: | Simple model flows demonstrating the combined effect of thermobaricity
with either salinity variations or nonlinear temperature-dependence in the equation
of state of water are investigated. An inviscid flow exhibits a three-layer
behaviour, resulting in the formation of a mid-depth temperature maximum,
such as is observed in some high-latitude oceans and deep lakes. This may be
subsequently overtaken by nonlinear frontogenesis, which in the viscous case
is shown to generate a thermal bar. Thermobaricity shifts the thermal bar
towards the colder water, and initially produces a slope in the downwelling
plume, but this transient feature disappears as the dominant frontogenesis tilts
the plume backto the vertical. |
Description: | This is a pre-print of an article which appeared in the journal, Dynamics of Atmospheres and Oceans [© Elsevier]. The definitive version: KAY, A., 2001. Thermobaric flow. Dynamics of Atmospheres and Oceans, 34(2-4), pp. 263-289, is available at: http://www.sciencedirect.com/science/journal/03770265 |
URI: | https://dspace.lboro.ac.uk/2134/679 |
Appears in Collections: | Pre-prints (Maths)
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