Circulation and transport in the western boundary currents at Cape Farewell, Greenland
The circulation and volume transports in the western boundary currents around Cape Farewell, Greenland, are derived from full-depth hydrographic and velocity measurements from August-September 2005. The western boundary currents from surface to seafloor transport 40.5 ± 8.1 Sv (Sv≡ 106 m3 s-1) south...
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2009
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Online Access: | https://doi.org/10.1175/2009JPO4160.1 https://researchportal.port.ac.uk/portal/en/publications/circulation-and-transport-in-the-western-boundary-currents-at-cape-farewell-greenland(0b06e43d-5f55-4026-8aca-acf1a13037c6).html |
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ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/0b06e43d-5f55-4026-8aca-acf1a13037c6 2023-05-15T15:51:48+02:00 Circulation and transport in the western boundary currents at Cape Farewell, Greenland Holliday, N. P. Bacon, S. Allen, John McDonagh, E. L. 2009 https://doi.org/10.1175/2009JPO4160.1 https://researchportal.port.ac.uk/portal/en/publications/circulation-and-transport-in-the-western-boundary-currents-at-cape-farewell-greenland(0b06e43d-5f55-4026-8aca-acf1a13037c6).html eng eng info:eu-repo/semantics/restrictedAccess Holliday , N P , Bacon , S , Allen , J & McDonagh , E L 2009 , ' Circulation and transport in the western boundary currents at Cape Farewell, Greenland ' Journal of Physical Oceanography , vol 39 , no. 8 , pp. 1854-1870 . DOI:10.1175/2009JPO4160.1 /dk/atira/pure/core/subjects/earthsci Earth Sciences article 2009 ftunivportsmpubl https://doi.org/10.1175/2009JPO4160.1 2017-09-28T19:31:44Z The circulation and volume transports in the western boundary currents around Cape Farewell, Greenland, are derived from full-depth hydrographic and velocity measurements from August-September 2005. The western boundary currents from surface to seafloor transport 40.5 ± 8.1 Sv (Sv≡ 106 m3 s-1) southward in the Irminger Sea, and 53.8 ± 10.8 Sv northward in the Labrador Sea. The Deep Western Boundary Current (DWBC, defined as water with potential density greater than 27.80 kg m-3) transports 12.3 ± 2.5 Sv southward in the Irminger Sea. The deep water transport is reduced south of Cape Farewell, where it changes flow direction from southward to northward (the south corner). At a section over the Eirik Ridge, a bathymetric feature extending southwest of Cape Farewell, the DWBC transports 8.7 ± 1.7 Sv westward. The reduction in transport at the south corner is associated with decreased velocities within the deepest layers and the volumetric loss of the most saline deep water types. The observations suggest that the paths of the shallow and deep western boundary currents diverge at the south corner. Downstream in the eastern Labrador Sea the deep water transport is increased to 19.7 ± 3.9 Sv northward, with the addition of recirculating denser deep waters. The representativeness of the results from the semisynoptic survey is discussed with reference to companion current meter measurements of the DWBC. Article in Journal/Newspaper Cape Farewell Greenland Labrador Sea University of Portsmouth: Portsmouth Research Portal Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Eirik Ridge ENVELOPE(-44.500,-44.500,58.500,58.500) Journal of Physical Oceanography 39 8 1854 1870 |
institution |
Open Polar |
collection |
University of Portsmouth: Portsmouth Research Portal |
op_collection_id |
ftunivportsmpubl |
language |
English |
topic |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
spellingShingle |
/dk/atira/pure/core/subjects/earthsci Earth Sciences Holliday, N. P. Bacon, S. Allen, John McDonagh, E. L. Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
topic_facet |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
description |
The circulation and volume transports in the western boundary currents around Cape Farewell, Greenland, are derived from full-depth hydrographic and velocity measurements from August-September 2005. The western boundary currents from surface to seafloor transport 40.5 ± 8.1 Sv (Sv≡ 106 m3 s-1) southward in the Irminger Sea, and 53.8 ± 10.8 Sv northward in the Labrador Sea. The Deep Western Boundary Current (DWBC, defined as water with potential density greater than 27.80 kg m-3) transports 12.3 ± 2.5 Sv southward in the Irminger Sea. The deep water transport is reduced south of Cape Farewell, where it changes flow direction from southward to northward (the south corner). At a section over the Eirik Ridge, a bathymetric feature extending southwest of Cape Farewell, the DWBC transports 8.7 ± 1.7 Sv westward. The reduction in transport at the south corner is associated with decreased velocities within the deepest layers and the volumetric loss of the most saline deep water types. The observations suggest that the paths of the shallow and deep western boundary currents diverge at the south corner. Downstream in the eastern Labrador Sea the deep water transport is increased to 19.7 ± 3.9 Sv northward, with the addition of recirculating denser deep waters. The representativeness of the results from the semisynoptic survey is discussed with reference to companion current meter measurements of the DWBC. |
format |
Article in Journal/Newspaper |
author |
Holliday, N. P. Bacon, S. Allen, John McDonagh, E. L. |
author_facet |
Holliday, N. P. Bacon, S. Allen, John McDonagh, E. L. |
author_sort |
Holliday, N. P. |
title |
Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
title_short |
Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
title_full |
Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
title_fullStr |
Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
title_full_unstemmed |
Circulation and transport in the western boundary currents at Cape Farewell, Greenland |
title_sort |
circulation and transport in the western boundary currents at cape farewell, greenland |
publishDate |
2009 |
url |
https://doi.org/10.1175/2009JPO4160.1 https://researchportal.port.ac.uk/portal/en/publications/circulation-and-transport-in-the-western-boundary-currents-at-cape-farewell-greenland(0b06e43d-5f55-4026-8aca-acf1a13037c6).html |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) ENVELOPE(-44.500,-44.500,58.500,58.500) |
geographic |
Greenland Irminger Sea Eirik Ridge |
geographic_facet |
Greenland Irminger Sea Eirik Ridge |
genre |
Cape Farewell Greenland Labrador Sea |
genre_facet |
Cape Farewell Greenland Labrador Sea |
op_source |
Holliday , N P , Bacon , S , Allen , J & McDonagh , E L 2009 , ' Circulation and transport in the western boundary currents at Cape Farewell, Greenland ' Journal of Physical Oceanography , vol 39 , no. 8 , pp. 1854-1870 . DOI:10.1175/2009JPO4160.1 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1175/2009JPO4160.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
39 |
container_issue |
8 |
container_start_page |
1854 |
op_container_end_page |
1870 |
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1766387198441029632 |