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dc.contributor.authorCuthbertson, A
dc.contributor.authorDavies, P
dc.contributor.authorStashchuk, Nataliya
dc.contributor.authorVlasenko, Vasyl
dc.date.accessioned2016-03-23T16:31:03Z
dc.date.available2016-03-23T16:31:03Z
dc.date.issued2014-02
dc.identifier.issn1616-7341
dc.identifier.issn1616-7228
dc.identifier.urihttp://hdl.handle.net/10026.1/4405
dc.description.abstract

<jats:title>Abstract</jats:title> <jats:p>The overflow of dense water from the Nordic Seas through the Faroese Channel system was investigated through combined laboratory experiments and numerical simulations using the Massachusetts Institute of Technology General Circulation Model. In the experimental study, a scaled, topographic representation of the Faroe-Shetland Channel, Wyville-Thomson Basin and Ridge and Faroe Bank Channel seabed bathymetry was constructed and mounted in a rotating tank. A series of parametric experiments was conducted using dye-tracing and drogue-tracking techniques to investigate deep-water overflow pathways and circulation patterns within the modelled region. In addition, the structure of the outflowing dense bottom water was investigated through density profiling along three cross-channel transects located in the Wyville-Thomson Basin and the converging, up-sloping approach to the Faroe Bank Channel. Results from the dye-tracing studies demonstrate a range of parametric conditions under which dense water overflow across the Wyville-Thomson Ridge is shown to occur, as defined by the Burger number, a non-dimensional length ratio and a dimensionless dense water volume flux parameter specified at the Faroe-Shetland Channel inlet boundary. Drogue-tracking measurements reveal the complex nature of flow paths and circulations generated in the modelled topography, particularly the development of a large anti-cyclonic gyre in the Wyville-Thompson Basin and up-sloping approach to the Faroe Bank Channel, which diverts the dense water outflow from the Faroese shelf towards the Wyville-Thomson Ridge, potentially promoting dense water spillage across the ridge itself. The presence of this circulation is also indicated by associated undulations in density isopycnals across the Wyville-Thomson Basin. Numerical simulations of parametric test cases for the main outflow pathways and density structure in a similarly-scaled Faroese Channels model domain indicate excellent qualitative agreement with the experimental observations and measurements. In addition, the comparisons show that strong temporal variability in the predicted outflow pathways and circulations have a strong influence in regulating the Faroe Bank Channel and Wyville-Thomson Ridge overflows, as well as in determining the overall response in the Faroese Channels to changes in the Faroe-Shetland Channel inlet boundary conditions.</jats:p>

dc.format.extent273-292
dc.languageen
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.subjectFaroese Channels
dc.subjectDense water outflows
dc.subjectCirculations
dc.subjectOverflows
dc.subjectNorth Atlantic
dc.subjectLaboratory model
dc.subjectComputational model
dc.titleModel studies of dense water overflows in the Faroese Channels
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331200500007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue2
plymouth.volume64
plymouth.publication-statusPublished
plymouth.journalOcean Dynamics
dc.identifier.doi10.1007/s10236-013-0685-2
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.identifier.eissn1616-7228
dc.rights.embargoperiodNo embargo
rioxxterms.funderNatural Environment Research Council
rioxxterms.identifier.projectModelling of the Wyville Thomson Ridge overflow
rioxxterms.versionofrecord10.1007/s10236-013-0685-2
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
plymouth.funderModelling of the Wyville Thomson Ridge overflow::Natural Environment Research Council


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