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dc.contributor.authorStøylen, Eivindeng
dc.contributor.authorFer, Ilkereng
dc.date.accessioned2015-09-29T11:49:26Z
dc.date.available2015-09-29T11:49:26Z
dc.date.issued2014-01-10
dc.PublishedNonlinear processes in geophysics 2014, 21(1):87-100eng
dc.identifier.issn1023-5809en_US
dc.identifier.issn1607-7946en_US
dc.identifier.urihttps://hdl.handle.net/1956/10527
dc.description.abstractThe internal response in a stratified, partially enclosed basin subject to semi-diurnal tidal forcing through a narrow entrance is investigated. The site is located above the critical latitude where linear internal waves of lunar semi-diurnal frequency are not permitted to propagate freely. Generation and propagation of tidally induced internal Kelvin waves are studied, for baroclinically sub- and supercritical conditions at the mouth of the fjord, using a non-linear 3-D numerical model in an idealized basin and in Van Mijenfjorden, Svalbard, using a realistic topography. The model results are compared to observations of hydrography and currents made in August 2010. Results from both the model and measurements indicate the presence of internal Kelvin waves, even when conditions at the fjord entrance are supercritical. The entrance of Van Mijenfjorden is split into two sounds. Sensitivity experiments by closing each sound separately reveal that internal Kelvin waves are generated at both sounds. When the conditions are near supercritical, a wave pulse propagates inward from the fjord entrance at the beginning of each inflow phase of the tidal cycle. The leading crest is followed by a series of smaller amplitude waves characterized as non-linear internal solitons. However, higher model resolution is needed to accurately describe the influence of small-scale mixing and processes near the sill crest in establishing the evolution of the flow and internal response in the fjord.en_US
dc.language.isoengeng
dc.publisherCopernicus Publicationsen_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/eng
dc.titleTidally induced internal motion in an Arctic fjorden_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-07-28T08:06:18Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2014 The Authorsen_US
dc.identifier.doihttps://doi.org/10.5194/npg-21-87-2014
dc.identifier.cristin1084183
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Geosciences: 450::Oceanography: 452


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