An Example of Eddy-Induced Ocean Circulation

Holland, William R.; Rhines, Peter B.

doi:10.1175/1520-0485(1980)010<1010:aeoeio>2.0.co;2

Cited by 169 publications

(113 citation statements)

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“…Potential vorticity exchange coefficient, A q = −u q ·∇ρq |∇ρq| 2 [26] α When the KS2D confidence level, α, is less than or equal to 0.05, we can reject the null hypothesis of the test with at least 95% confidence. See D n .…”

Section: A Qmentioning

confidence: 99%

Interior pathways of the North Atlantic meridional overturning circulation

Bower

Lozier

Gary

et al. 2009

Nature

254

249

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for the AMOC deep limb. In order to assess the impact of the interior pathway relative to the DWBC pathway, this work seeks to quantify the AMOC deep limb pathways in ocean circulation models, compare the pathway signatures of these models to observations, and identify a mechanism driving the interior pathway. The partitioning of the AMOC deep limb into interior and DWBC pathways is observed in several ocean models. Furthermore, there is a good agreement between the structure of the export pathways in models and observations. Both Eulerian and Lagrangian techniques, in models and observations, are used to identify the DWBC and interior pathways and these two perspectives are shown to be compatible with one another.Finally, deep, eddy-driven, recirculation gyres are shown to be a mechanism driving the interior pathway and the existence of the interior pathway is consistent with the vorticity balance at depth. The interior pathway makes a significant contribution to the total transport of the deep limb of the AMOC. Since the interior pathway is much broader and slower than the DWBC pathway, the large-scale transport of climate signals, heat, and anthropogenic CO 2 associated with the AMOC are slower and mixed more broadly throughout the ocean than once thought. iv

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Section: A Qmentioning

confidence: 99%

Interior pathways of the North Atlantic meridional overturning circulation

Bower

Lozier

Gary

et al. 2009

Nature

254

249

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show abstract

“…3.1, it is clear that in the top and middle layers there is both a broad Sverdrup circulation and a tighter inertial recirculation, while in the deep layer only the latter is visible. Holland and Rhines (1980) have found that the exact Sverdrup balance Bv = fw z obtains over a relatively small area of numerical models, but in that work it was found that it did describe the region in the top layer that appears in …”

Section: )mentioning

confidence: 99%

Horizontal and vertical structure of velocity, potential vorticity and energy in the gulf stream

Hall¹

1985

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“…In a strati ed ocean, this effect is even more likely, for the strongest circulation is in the surface layers, and they may only interact with bottom topography near the basin margins or indirectly as in Holland and Rhines (1980). The vorticity budget resulting from the Holland and Rhines (1980) uxes seems likely to be obtuse, as Haynes and McIntyre (1987) prove that no potential vorticity can be exchanged between isopycnal layers away from the boundaries.…”

Section: Introductionmentioning

confidence: 99%

Wind-driven barotropic gyre I: Circulation control by eddy vorticity fluxes to an enhanced removal region

Fox‐Kemper

Pedlosky

2004

J Mar Res

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It is well known that the barotropic, wind-driven, single-gyre ocean model reaches an inertiallydominated equilibrium with unrealistic circulation strength when the explicit viscosity is reduced to realistically low values. It is shown here that the overall circulation strength can be controlled nonlocally by retaining thin regions of enhanced viscosity parameterizing the effects of increased mixing and topographic interaction near the boundaries. The control is possible even when the inertial boundary layer width is larger than the enhanced viscosity region, as eddy uxes of vorticity from the interior transport vorticity across the mean streamlines of the inertial boundary current to the frictional region. In relatively inviscid calculations the eddies are the major means of ux across interior mean streamlines.

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An Example of Eddy-Induced Ocean Circulation

Cited by 169 publications

References 0 publications

Interior pathways of the North Atlantic meridional overturning circulation

Interior pathways of the North Atlantic meridional overturning circulation

Horizontal and vertical structure of velocity, potential vorticity and energy in the gulf stream

Wind-driven barotropic gyre I: Circulation control by eddy vorticity fluxes to an enhanced removal region

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