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dc.contributor.authorStamper, MA
dc.contributor.authorTaylor, John
dc.contributor.authorFox-Kemper, B
dc.date.accessioned2018-12-12T00:30:22Z
dc.date.available2018-12-12T00:30:22Z
dc.date.issued2018-11
dc.identifier.issn0022-3670
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286678
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>Motivated by recent observations of submesoscales in the Southern Ocean, we use nonlinear numerical simulations and a linear stability analysis to examine the influence of a barotropic jet on submesoscale instabilities at an isolated front. Simulations of the nonhydrostatic Boussinesq equations with a strong barotropic jet (approximately matching the observed conditions) show that submesoscale disturbances and strong vertical velocities are confined to a small region near the initial frontal location. In contrast, without a barotropic jet, submesoscale eddies propagate to the edges of the computational domain and smear the mean frontal structure. Several intermediate jet strengths are also considered. A linear stability analysis reveals that the barotropic jet has a modest influence on the growth rate of linear disturbances to the initial conditions, with at most a ~20% reduction in the growth rate of the most unstable mode. On the other hand, a basic state formed by averaging the flow at the end of the simulation with a strong barotropic jet is linearly stable, suggesting that nonlinear processes modify the mean flow and stabilize the front.</jats:p>
dc.publisherAmerican Meteorological Society
dc.titleThe growth and saturation of submesoscale instabilities in the presence of a barotropic jet
dc.typeArticle
prism.endingPage2797
prism.issueIdentifier11
prism.publicationDate2018
prism.publicationNameJournal of Physical Oceanography
prism.startingPage2779
prism.volume48
dc.identifier.doi10.17863/CAM.33985
dcterms.dateAccepted2018-09-17
rioxxterms.versionofrecord10.1175/JPO-D-18-0022.1
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-11-01
dc.contributor.orcidTaylor, John [0000-0002-1292-3756]
dc.identifier.eissn1520-0485
rioxxterms.typeJournal Article/Review
pubs.funder-project-idNatural Environment Research Council (NE/J010472/1)
rioxxterms.freetoread.startdate2019-11-01


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