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dc.contributor.authorCaulfield, Colm-cilleen
dc.contributor.authorMashayek, Aen
dc.contributor.authorSalehipour, Hen
dc.contributor.authorBouffard, Den
dc.contributor.authorFerrari, Ren
dc.contributor.authorPeltier, Wen
dc.contributor.authorSmyth, Wen
dc.contributor.authorNikurashin, Men
dc.date.accessioned2017-05-16T11:59:49Z
dc.date.available2017-05-16T11:59:49Z
dc.date.issued2017-07-17en
dc.identifier.issn0094-8276
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/264264
dc.description.abstractTurbulent mixing produced by breaking of internal waves plays an important role in setting the patterns of downwelling and upwelling of deep dense waters and thereby helps sustain the global deep ocean overturning circulation. A key parameter used to characterize turbulent mixing is its efficiency, defined here as the fraction of the energy available to turbulence that is invested in mixing. Efficiency is conventionally approximated by a constant value near one sixth. Here we show that efficiency varies significantly in the abyssal ocean and can be as large as approximately one third in density stratified regions near topographic features. Our results indicate that variations in efficiency exert a first-order control over the rate of overturning of the lower branch of the meridional overturning circulation.
dc.description.sponsorshipEPSRC Programme grant EP/K034529/1 entitled “Mathematical Underpinnings of Stratified Turbulence.”
dc.language.isoenen
dc.publisherAmerican Geophysical Union
dc.subjectgeneral circulationen
dc.subjectturbulence, diffusion, and mixing processesen
dc.titleEfficiency of turbulent mixing in the abyssal ocean circulationen
dc.typeArticle
prism.endingPage6306
prism.issueIdentifier12en
prism.publicationDate2017en
prism.publicationNameGeophysical Research Lettersen
prism.startingPage6296
prism.volume44en
dc.identifier.doi10.17863/CAM.9670
dcterms.dateAccepted2017-04-26en
rioxxterms.versionofrecord10.1002/2016GL072452en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-07-17en
dc.contributor.orcidCaulfield, Colm-cille [0000-0002-3170-9480]
dc.identifier.eissn1944-8007
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/K034529/1)
cam.issuedOnline2017-06-22en
datacite.issupplementedby.doi10.17863/CAM.9452en
cam.orpheus.successThu Jan 30 12:53:56 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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