On the benthic Ekman layer

Crisciani, Fulvio and Badin, G. and Mosetti, R. (2008) On the benthic Ekman layer. Il nuovo cimento C, 31 (3). pp. 339-355. ISSN 1826-9885

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A review of the standard model of the benthic Ekman layer is presented and reformulated in terms of relative vorticity in place of horizontal current. In this context, the possibility to use mixed boundary conditions to model this layer is explored. The related model solutions can be cast into two main groups: the first is a generalization of the classical Ekman result, while the second one has some unexpected features which are problematic with respect to the Ekman pumping process. An investigation on the finite amplitude stability via the Lyapunov method shows that solutions belonging to the first group are stable while, in the second group, solutions are unstable. This fact poses a physical constraint to the set of the admissible boundary conditions. Finally, a connection between mass transport and boundary condition at the sea floor is numerically investigated.

Item Type: Article
Uncontrolled Keywords: Deep ocean processes ; Instability of shear flows (e.g., Kelvin-Helmholtz)
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia
Depositing User: Marina Spanti
Date Deposited: 23 Mar 2020 16:16
Last Modified: 23 Mar 2020 16:16
URI: http://eprints.bice.rm.cnr.it/id/eprint/16363

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