Time-dependent motions and the nonlinear bottom Ekman layer

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ID: 308233
1997
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Abstract
The laminar bottom Ekman layer beneath a flow with finite relative vorticity is studied. First, the case with only a steady interior shear flow is reviewed, and then a case with a spatially uniform oscillating flow is superimposed. In both cases, the problem can be reduced to solving ordinary differential equations. The competition of two effects governs the results. The interior vorticity effectively modifies the rotation rate, but advection (especially vertically, due to Ekman pumping) tends to counteract the vorticity modification. Vertical advection keeps the time-dependent boundary layer well behaved for negative interior vorticities, but a boundary layer singularity can still exist at a single superinertial frequency when interior relative vorticity is positive.
Reference Key
openalex_W1965679082 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors K. H. Brink
Journal journal of marine research
Year 1997
DOI
10.1357/0022240973224265
URL
https://doi.org/10.1357/0022240973224265
Keywords Keywords not found

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