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dc.contributor.authorFer, Ilkereng
dc.contributor.authorSkogseth, Ragnheideng
dc.contributor.authorHaugan, Peter Mosbyeng
dc.date.accessioned2004-06-29T08:11:46Z
dc.date.accessioned2004-08-03T13:01:26Z
dc.date.accessioned2004-08-26T11:59:38Z
dc.date.available2004-06-29T08:11:46Z
dc.date.available2004-08-03T13:01:26Z
dc.date.available2004-08-26T11:59:38Z
dc.date.issued2004-01-03eng
dc.identifier.issn0148-0227eng
dc.identifier.urihttp://hdl.handle.net/1956/435
dc.description.abstractObservations were made of the dense overflow from Storfjorden from a survey conducted at closely spaced stations in August 2002. The field data set consists of conventional conductivity-temperature-depth profiles and short-term moored current meters and thermistor strings. Finestructure estimates were made by calculating Thorpe scales over identified overturns using 0.1-dbar vertically averaged density profiles. Dissipation rate of turbulent kinetic energy per unit mass, e, is estimated assuming proportionality between Thorpe and Ozmidov length scales. Vertical eddy diffusivity Kz is estimated using Osborn’s model assuming a constant mixing efficiency. Survey-averaged profiles suggest enhanced mixing near the bottom with values of Kz and e, when averaged within the overflow, equal to 10 x 10-4 m2 s-1 and 3 x 10-8 W kg-1, respectively. Kz is found to decrease with increasing buoyancy frequency as N-1.2 (±0.3), albeit values of N covered only 0.5–8 cph (1 cph = 2p/3600 s-1). Values of heat flux obtained using Kz suggest that the plume gains a considerable amount of heat, 45 ± 25 W m2, when averaged over the thickness of the plume, from overlying waters of Atlantic origin. This value is lower than but, considering the errors in estimates of Kz, comparable with 100 W m2, the rate of change of heat in the overflow derived from sections across the sill and 80 km downstream.en
dc.format.extent48458 byteseng
dc.format.extent5973452 byteseng
dc.format.extent183 byteseng
dc.format.mimetypetext/plaineng
dc.format.mimetypeapplication/pdfeng
dc.format.mimetypetext/plaineng
dc.language.isoengeng
dc.publisherAmerican Geophysical Unioneng
dc.titleMixing of the Storfjorden overflow (Svalbard Archipelago) inferred from denstity overturnseng
dc.typeJournal articleeng
dc.rights.holderCopyright 2004 by the American Geophysical Union
dc.type.versionpublishedVersioneng
bora.journalTitleJournal of Geophysical Researcheng
bibo.volume109eng
bora.cristinID421762eng
bibo.numberC01005eng
bibo.doihttp://dx.doi.org/10.1029/2003JC001968eng
dc.identifier.cristinID421762eng
dc.identifier.doihttp://dx.doi.org/10.1029/2003JC001968


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