Thermobaric flow
Anthony Kay
2134/679
https://repository.lboro.ac.uk/articles/preprint/Thermobaric_flow/9384428
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.
2006-01-16 10:38:03
Baroclinic flow
Frontogenesis
Polar oceans
Thermobaricity
Mathematical Sciences not elsewhere classified
Oceanography
Atmospheric Sciences