On the effect of small-scale oceanic variability on topography-generated currents
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Small-scale oceanic motions, in combination with bottom topography, induce mean large-scale along-isobaths flows. The direction of these mean flows is usually found to be anticyclonic (cyclonic) over bumps (depressions). Here we employ a quasigeostrophic model to show that the current direction of these topographically induced large-scale flows can be reversed by the small-scale variability. This result addresses the existence of a new bulk effect from the small-scale activity that could have strong consequences on the circulation of the world's ocean.
14 pages, 1 GIF file, uses the agums.sty style file(included). To appear in Geophysical Research Letters. Related material available from http://www.imedea.uib.es/Nonlinear/research_topics/GeoPhys/geo.html
14 pages, 1 GIF file, uses the agums.sty style file(included). To appear in Geophysical Research Letters. Related material available from http://www.imedea.uib.es/Nonlinear/research_topics/GeoPhys/geo.html