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Sensitivity of the Overturning Circulation in the Southern Ocean to Decadal Changes in Wind Forcing

Meredith, Michael P.; Garabato, Albert C. Naveira; Hogg, Andrew; Farneti, Riccardo

Description

The sensitivity of the overturning circulation in the Southern Ocean to the recent decadal strengthening of the overlying winds is being discussed intensely, with some works attributing an inferred saturation of the Southern Ocean CO2 sink to an intensification of the overturning circulation, while others have argued that this circulation is insensitive to changes in winds. Fundamental to reconciling these diverse views is to understand properly the role of eddies in counteracting the directly...[Show more]

dc.contributor.authorMeredith, Michael P.
dc.contributor.authorGarabato, Albert C. Naveira
dc.contributor.authorHogg, Andrew
dc.contributor.authorFarneti, Riccardo
dc.date.accessioned2015-12-10T21:54:21Z
dc.identifier.issn0894-8755
dc.identifier.urihttp://hdl.handle.net/1885/38898
dc.description.abstractThe sensitivity of the overturning circulation in the Southern Ocean to the recent decadal strengthening of the overlying winds is being discussed intensely, with some works attributing an inferred saturation of the Southern Ocean CO2 sink to an intensification of the overturning circulation, while others have argued that this circulation is insensitive to changes in winds. Fundamental to reconciling these diverse views is to understand properly the role of eddies in counteracting the directly wind-forced changes in overturning. Here, the authors use novel theoretical considerations and fine-resolution ocean models to develop a new scaling for the sensitivity of eddy-induced mixing to changes in winds, and they demonstrate that changes in Southern Ocean overturning in response to recent and future changes in wind stress forcing are likely to be substantial, even in the presence of a decadally varying eddy field. This result has significant implications for the ocean's role in the carbon cycle, and hence global climate.
dc.publisherAmerican Meteorological Society
dc.rightsAuthor/s retain copyright
dc.sourceJournal of Climate
dc.subjectKeywords: Carbon cycles; Decadal change; Decadal variability; Forcing; Global climates; Ocean model; Overturning circulation; Southern Ocean; Wind forcing; Carbon dioxide; Climate models; Mixing; Wind; Oceanography; air-sea interaction; atmosphere-ocean coupling; c Decadal variability; Forcing; Mixing; Ocean models; Southern Ocean
dc.titleSensitivity of the Overturning Circulation in the Southern Ocean to Decadal Changes in Wind Forcing
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume25
dc.date.issued2012
local.identifier.absfor040104 - Climate Change Processes
local.identifier.absfor040503 - Physical Oceanography
local.identifier.ariespublicationu4278572xPUB168
local.type.statusPublished Version
local.contributor.affiliationMeredith, Michael P., British Antarctic Survey
local.contributor.affiliationGarabato, Albert C. Naveira, National Oceanography Centre
local.contributor.affiliationHogg, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationFarneti, Riccardo, ICTP
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage99
local.bibliographicCitation.lastpage110
local.identifier.doi10.1175/2011JCLI4204.1
local.identifier.absseo960303 - Climate Change Models
local.identifier.absseo961104 - Physical and Chemical Conditions of Water in Marine Environments
dc.date.updated2016-02-24T10:48:39Z
local.identifier.scopusID2-s2.0-84856976645
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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