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dc.contributor.authorZhou, Fen
dc.contributor.authorShapiro, Gen
dc.contributor.authorWobus, Fen
dc.date.accessioned2017-06-05T10:29:32Z
dc.date.available2017-06-05T10:29:32Z
dc.date.issued2014-01-01en
dc.identifier.urihttp://hdl.handle.net/10026.1/9423
dc.description.abstract

The transports of water, heat, and salt between the northwestern shelf and deep interior of the Black Sea are investigated using a high-resolution three-dimensional primitive equation model. From April to August 2005, both onshore and offshore cross-shelf break transports in the top 20 m were 0.24 Sv on average, which is equivalent to the replacement of 60% of the volume of surface shelf waters (0-20 m) per month. Two main exchange mechanisms are studied: Ekman transport, and transport by mesoscale eddies and associated meanders of the Rim Current. The Ekman drift causes nearly uniform onshore or offshore flow over a large section of the shelf break, but it is confined to the upper layers. In contrast, eddies and meanders penetrate deep down to the bottom, but they are restricted laterally. During the strong wind events of 15-22 April and 1-4 July, some 0.66 × 1012 and 0.44 × 1012 m3 of water were removed from the northwestern shelf, respectively. In comparison, the single long-lived Sevastopol Eddy generated a much larger offshore transfer of 2.84 × 1012 m3 over the period 23 April to 30 June, which is equivalent to 102% of the volume of northwestern shelf waters. Over the study period, salt exchanges increased the average density of the shelf waters by 0.67 kg m-3 and reduced the density contrast between the shelf and deep sea, while lateral heat exchanges reduced the density of the shelf waters by 0.16 kg m-3 and sharpened the shelf break front. Key Points Cross-shelf break transports of volume, heat, and salt are quantified Exchange mechanisms by mesoscale eddy and wind-driven Ekman drift are analyzed Some exchange events are shown to cause a sharpening of the shelf break density front © 2014. American Geophysical Union. All Rights Reserved.

en
dc.format.extent2143 - 2164en
dc.language.isoenen
dc.titleCross-shelf exchange in the northwestern Black Seaen
dc.typeJournal Article
plymouth.issue4en
plymouth.volume119en
plymouth.publication-statusPublisheden
plymouth.journalJournal of Geophysical Research: Oceansen
dc.identifier.doi10.1002/2013JC009484en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
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/PRIMaRE Publications
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
dc.identifier.eissn2169-9291en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1002/2013JC009484en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.typeJournal Article/Reviewen


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