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