Abstract
The dynamics of the “bottom” boundary layer in the ocean is influenced by the rotation of the earth, the mean oceanic circulation being in approximate geostrophic balance. An Ekman boundary layer is developed to match the interior flow, in which the velocity vector changes direction towards the bottom. Seen from above the change is clockwise in the northern hemisphere. Based on a Reynolds number criterion, the oceanic Ekman boundary layer is turbulent, the typical Reynolds number being at least an order of magnitude larger than the critical one (Wimbush and Munk 1971). However, the stability of the density stratification also influences the dynamics of the boundary layer.
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Kullenberg, G., Zaneveld, R. (1983). Aspects of Bottom Boundary Layers in the Ocean. In: Bott, M.H.P., Saxov, S., Talwani, M., Thiede, J. (eds) Structure and Development of the Greenland-Scotland Ridge. Nato Conference Series, vol 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3485-9_15
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DOI: https://doi.org/10.1007/978-1-4613-3485-9_15
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