The oxygen isotope composition of water masses within the North Sea
Based on measurements of the 18O isotope composition of 247 samples collected over a 3-year period we have assessed the oxygen isotope composition of water masses in the North Sea. This is the first d18O data set that covers the entire North Sea basin. The waters lie on a mixing line: d18O (‰VSMOW)...
Published in: | Estuarine, Coastal and Shelf Science |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:25423 2023-05-15T17:30:37+02:00 The oxygen isotope composition of water masses within the North Sea Harwood, Andrew J. P. Dennis, Paul F. Marca, Alina D. Pilling, Graham M. Millner, Richard S. 2008 https://ueaeprints.uea.ac.uk/id/eprint/25423/ https://doi.org/10.1016/j.ecss.2007.12.010 unknown Harwood, Andrew J. P., Dennis, Paul F., Marca, Alina D., Pilling, Graham M. and Millner, Richard S. (2008) The oxygen isotope composition of water masses within the North Sea. Estuarine, Coastal and Shelf Science, 78 (2). pp. 353-359. ISSN 1096-0015 doi:10.1016/j.ecss.2007.12.010 Article PeerReviewed 2008 ftuniveastangl https://doi.org/10.1016/j.ecss.2007.12.010 2023-01-30T21:26:49Z Based on measurements of the 18O isotope composition of 247 samples collected over a 3-year period we have assessed the oxygen isotope composition of water masses in the North Sea. This is the first d18O data set that covers the entire North Sea basin. The waters lie on a mixing line: d18O (‰VSMOW) = -9.300 + 0.274(S) with North Atlantic sub-polar mode water (SPMW) and surface waters, and Baltic Sea water representing the saline and freshwater end members respectively. Patterns exhibited in surface and bottom water d18O distributions are representative of the general circulation of the North Sea. Oxygen-18 enriched waters from the North Atlantic enter the North Sea between Scotland and Norway and to a lesser extent through the English Channel. In contrast, oxygen-18 depleted waters mainly inflow from the Baltic Sea, the rivers Rhine and Elbe, and to a lesser degree, the Norwegian Fjords and other river sources. Locally the d18O–salinity relationship will be controlled by the isotopic composition of the freshwater inputs. However, the range of local freshwater compositions around the North Sea basin is too narrow to characterise the relative contributions of individual sources to the overall seawater composition. This dataset provides important information for a number of related disciplines including biogeochemical research and oceanographic studies. Article in Journal/Newspaper North Atlantic University of East Anglia: UEA Digital Repository Norway Estuarine, Coastal and Shelf Science 78 2 353 359 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
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ftuniveastangl |
language |
unknown |
description |
Based on measurements of the 18O isotope composition of 247 samples collected over a 3-year period we have assessed the oxygen isotope composition of water masses in the North Sea. This is the first d18O data set that covers the entire North Sea basin. The waters lie on a mixing line: d18O (‰VSMOW) = -9.300 + 0.274(S) with North Atlantic sub-polar mode water (SPMW) and surface waters, and Baltic Sea water representing the saline and freshwater end members respectively. Patterns exhibited in surface and bottom water d18O distributions are representative of the general circulation of the North Sea. Oxygen-18 enriched waters from the North Atlantic enter the North Sea between Scotland and Norway and to a lesser extent through the English Channel. In contrast, oxygen-18 depleted waters mainly inflow from the Baltic Sea, the rivers Rhine and Elbe, and to a lesser degree, the Norwegian Fjords and other river sources. Locally the d18O–salinity relationship will be controlled by the isotopic composition of the freshwater inputs. However, the range of local freshwater compositions around the North Sea basin is too narrow to characterise the relative contributions of individual sources to the overall seawater composition. This dataset provides important information for a number of related disciplines including biogeochemical research and oceanographic studies. |
format |
Article in Journal/Newspaper |
author |
Harwood, Andrew J. P. Dennis, Paul F. Marca, Alina D. Pilling, Graham M. Millner, Richard S. |
spellingShingle |
Harwood, Andrew J. P. Dennis, Paul F. Marca, Alina D. Pilling, Graham M. Millner, Richard S. The oxygen isotope composition of water masses within the North Sea |
author_facet |
Harwood, Andrew J. P. Dennis, Paul F. Marca, Alina D. Pilling, Graham M. Millner, Richard S. |
author_sort |
Harwood, Andrew J. P. |
title |
The oxygen isotope composition of water masses within the North Sea |
title_short |
The oxygen isotope composition of water masses within the North Sea |
title_full |
The oxygen isotope composition of water masses within the North Sea |
title_fullStr |
The oxygen isotope composition of water masses within the North Sea |
title_full_unstemmed |
The oxygen isotope composition of water masses within the North Sea |
title_sort |
oxygen isotope composition of water masses within the north sea |
publishDate |
2008 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/25423/ https://doi.org/10.1016/j.ecss.2007.12.010 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Harwood, Andrew J. P., Dennis, Paul F., Marca, Alina D., Pilling, Graham M. and Millner, Richard S. (2008) The oxygen isotope composition of water masses within the North Sea. Estuarine, Coastal and Shelf Science, 78 (2). pp. 353-359. ISSN 1096-0015 doi:10.1016/j.ecss.2007.12.010 |
op_doi |
https://doi.org/10.1016/j.ecss.2007.12.010 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
78 |
container_issue |
2 |
container_start_page |
353 |
op_container_end_page |
359 |
_version_ |
1766127471759982592 |