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dc.contributor.authorHarden, Benjamin E.
dc.contributor.authorPickart, Robert S.
dc.contributor.authorValdimarsson, Héðinn
dc.contributor.authorVåge, Kjetil
dc.contributor.authorde Steur, Laura
dc.contributor.authorRichards, Clark
dc.contributor.authorBahr, Frank
dc.contributor.authorTorres, Dan
dc.contributor.authorBørve, Eli
dc.contributor.authorJónsson, Steingrímur
dc.contributor.authorMacrander, Andreas
dc.contributor.authorØsterhus, Svein
dc.contributor.authorHåvik, Lisbeth
dc.contributor.authorHattermann, Tore
dc.PublishedHarden, Pickart RS, Valdimarsson H, Våge K, de Steur, Richards, Bahr, Torres, Børve E, Jónsson S, Macrander, Østerhus S, Håvik L, Hattermann T. Upstream sources of the Denmark Strait Overflow: Observations from a high-resolution mooring array. Deep Sea Research Part I: Oceanographic Research Papers. 2016;112:94-112eng
dc.descriptionUnder embargo until: 2018-03-24
dc.description.abstractWe present the first results from a densely instrumented mooring array upstream of the Denmark Strait sill, extending from the Iceland shelfbreak to the Greenland shelf. The array was deployed from September 2011 to July 2012, and captured the vast majority of overflow water denser than 27.8 kg m−3 approaching the sill. The mean transport of overflow water over the length of the deployment was 3.54±0.16 Sv. Of this, 0.58 Sv originated from below sill depth, revealing that aspiration takes place in Denmark Strait. We confirm the presence of two main sources of overflow water: one approaching the sill in the East Greenland Current and the other via the North Icelandic Jet. Using an objective technique based on the hydrographic properties of the water, the transports of these two sources are found to be 2.54±0.17 Sv and 1.00±0.17 Sv, respectively. We further partition the East Greenland Current source into that carried by the shelfbreak jet (1.50±0.16 Sv) versus that transported by a separated branch of the current on the Iceland slope (1.04±0.15 Sv). Over the course of the year the total overflow transport is more consistent than the transport in either branch; compensation takes place among the pathways that maintains a stable total overflow transport. This is especially true for the two East Greenland Current branches whose transports vary out of phase with each other on weekly and longer time scales. We argue that wind forcing plays a role in this partitioning.en_US
dc.rightsAttribution CC BY-NC-NDeng
dc.titleUpstream sources of the Denmark Strait Overflow: Observations from a high-resolution mooring arrayen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2016 Elsevier Ltd.en_US
dc.source.journalDeep Sea Research Part I: Oceanographic Research Papers
dc.relation.projectNorges forskningsråd: 231647
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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