The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ...
This is the accepted version. The published version is available on this DOI: https://doi.org/10.1029/2024GL110097 Abstract The overflow of cold water through the Faroe Bank Channel (FBC) is the densest water crossing the Greenland-Scotland Ridge and the densest source for the Atlantic Meridional Ov...
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ftdatacite:10.5281/zenodo.13343493 2024-09-15T18:09:48+00:00 The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... Larsen, Karin Margretha Húsgarð Hansen, Bogi Hátún, Hjálmar Johansen, Guðrið Eriksdóttir Østerhus, Svein Olsen, Steffen Malskær 2024 https://dx.doi.org/10.5281/zenodo.13343493 https://zenodo.org/doi/10.5281/zenodo.13343493 unknown Zenodo https://dx.doi.org/10.5281/zenodo.13343494 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 JournalArticle ScholarlyArticle article-journal 2024 ftdatacite https://doi.org/10.5281/zenodo.1334349310.5281/zenodo.13343494 2024-09-02T09:19:40Z This is the accepted version. The published version is available on this DOI: https://doi.org/10.1029/2024GL110097 Abstract The overflow of cold water through the Faroe Bank Channel (FBC) is the densest water crossing the Greenland-Scotland Ridge and the densest source for the Atlantic Meridional Overturning Circulation (AMOC). Here, we show that the overflow volume transport remained stable from 1996 to 2022, but that the bottom water warmed at an average rate of 0.1 °C per decade, mainly caused by warming of deep waters upstream. The salinity of the overflow water has increased as a lagged and reduced response to the salinity increase seen in the upper-layer source waters. Therefore, the potential density of the bottom water over the FBC sill shows no statistically significant trend. After entrainment of warmer ambient waters downstream of the FBC, the nonlinear density dependence upon temperature implies, however, that the overflow contributed water of reduced density to the local overturning and the deep ... Article in Journal/Newspaper Greenland Greenland-Scotland Ridge North Atlantic DataCite |
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This is the accepted version. The published version is available on this DOI: https://doi.org/10.1029/2024GL110097 Abstract The overflow of cold water through the Faroe Bank Channel (FBC) is the densest water crossing the Greenland-Scotland Ridge and the densest source for the Atlantic Meridional Overturning Circulation (AMOC). Here, we show that the overflow volume transport remained stable from 1996 to 2022, but that the bottom water warmed at an average rate of 0.1 °C per decade, mainly caused by warming of deep waters upstream. The salinity of the overflow water has increased as a lagged and reduced response to the salinity increase seen in the upper-layer source waters. Therefore, the potential density of the bottom water over the FBC sill shows no statistically significant trend. After entrainment of warmer ambient waters downstream of the FBC, the nonlinear density dependence upon temperature implies, however, that the overflow contributed water of reduced density to the local overturning and the deep ... |
format |
Article in Journal/Newspaper |
author |
Larsen, Karin Margretha Húsgarð Hansen, Bogi Hátún, Hjálmar Johansen, Guðrið Eriksdóttir Østerhus, Svein Olsen, Steffen Malskær |
spellingShingle |
Larsen, Karin Margretha Húsgarð Hansen, Bogi Hátún, Hjálmar Johansen, Guðrið Eriksdóttir Østerhus, Svein Olsen, Steffen Malskær The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
author_facet |
Larsen, Karin Margretha Húsgarð Hansen, Bogi Hátún, Hjálmar Johansen, Guðrið Eriksdóttir Østerhus, Svein Olsen, Steffen Malskær |
author_sort |
Larsen, Karin Margretha Húsgarð |
title |
The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
title_short |
The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
title_full |
The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
title_fullStr |
The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
title_full_unstemmed |
The Coldest and Densest Overflow Branch Into the North Atlantic is Stable in Transport, But Warming ... |
title_sort |
coldest and densest overflow branch into the north atlantic is stable in transport, but warming ... |
publisher |
Zenodo |
publishDate |
2024 |
url |
https://dx.doi.org/10.5281/zenodo.13343493 https://zenodo.org/doi/10.5281/zenodo.13343493 |
genre |
Greenland Greenland-Scotland Ridge North Atlantic |
genre_facet |
Greenland Greenland-Scotland Ridge North Atlantic |
op_relation |
https://dx.doi.org/10.5281/zenodo.13343494 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.5281/zenodo.1334349310.5281/zenodo.13343494 |
_version_ |
1810447391233409024 |