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On the effect of small-scale oceanic variability on topography-generated currents

Alberto Alvarez·Emilio Hernandez-Garcia·Joaquin Tintore
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Abstract

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.

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Alberto Alvarez, Emilio Hernandez-Garcia, Joaquin Tintore. 2000-03-02. On the effect of small-scale oceanic variability on topography-generated currents. https://arxiv.org/abs/physics/0003009

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