2006
DOI: 10.1175/jpo2980.1
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Abstract: The Modeling Eddies in the Southern Ocean (MESO) project uses numerical sensitivity studies to examine the role played by Southern Ocean winds and eddies in determining the density structure of the global ocean and the magnitude and structure of the global overturning circulation. A hemispheric isopycnal-coordinate ocean model (which avoids numerical diapycnal diffusion) with realistic geometry is run with idealized forcing at a range of resolutions from coarse (2°) to eddy-permitting ( 1 ⁄6°). A comparison of… Show more

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Cited by 417 publications
(451 citation statements)
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References 66 publications
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“…However, according to the overturning stream function in density coordinates in Figure 4a, the water that upwells to the surface and is then forced northward by the Ekman flux consists of NADW, and the strength of this upward branch in OCCAM is 13 Sv. This value is comparable to the one reported by Treguier et al [2007], but smaller than the 18 Sv obtained by Hallberg and Gnanadesikan [2006].…”
Section: Dö ö S Et Al: Lagrangian Decomposition Of the Deacon Cellsupporting
confidence: 78%
See 1 more Smart Citation
“…However, according to the overturning stream function in density coordinates in Figure 4a, the water that upwells to the surface and is then forced northward by the Ekman flux consists of NADW, and the strength of this upward branch in OCCAM is 13 Sv. This value is comparable to the one reported by Treguier et al [2007], but smaller than the 18 Sv obtained by Hallberg and Gnanadesikan [2006].…”
Section: Dö ö S Et Al: Lagrangian Decomposition Of the Deacon Cellsupporting
confidence: 78%
“…[6] A popular way of understanding the difference between the zonally averaged mean flow (containing the Deacon Cell) and the pathways of actual water particles is to regard it as a result of eddy correlations [Marshall, 1997;Marshall and Radko, 2003;Hallberg and Gnanadesikan, 2006;Treguier et al, 2007]. Obviously, the fact that the diapycnal flow almost vanishes when density coordinates are used means that the diapycnal component of the zonal mean flow must be canceled by the eddy contribution.…”
Section: Introductionmentioning
confidence: 99%
“…Its standard deviation 6.9 Sv (from 5-day mean values) is low, and we have to face that BARBI may have a too large variability. In contrast to OCCAM, the Modeling Eddies in the Southern Ocean (MESO) project (Hallberg and Gnanadesikan 2006) reports a much higher variability, a weekly peak-to-peak range of 30 Sv, although the experiments are forced by constant windstress. The 1-year low-pass-filtered transport in the 1/6 • MESO model still varies by about 5 Sv.…”
Section: Variability and Trends From 197to 2005mentioning
confidence: 99%
“…However, most CMIP5 models use the same parametrization, so our results and scaling are appropriate for analysing wind stress feedbacks in CMIP5. Nonetheless, studies show that resolved eddies reduce the Southern Ocean carbon response to wind stress perturbations, by means of the effect of eddies on the residual circulation (Hallberg and Gnanadesikan 2006) and their role in setting the stratification of the ocean (Marshall et al 2002;Henning and Vallis 2004), rather than direct carbon transport by the eddy-induced velocity. While further work is needed to determine the impact of eddies on the feedback, additional experiments with a stronger eddy diffusivity parameter show a reduction in the sensitivity of pCO a 2 to SO by affecting the background stratification, an effect that our proposed scaling captures well.…”
Section: Discussionmentioning
confidence: 99%