Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay
Abstract Baffin Bay hosts the largest and most productive of the Arctic polynyas: the North Water (NOW). Despite its significance and active role in water mass formation, the history of the NOW beyond the observational era remains poorly known. We reconcile the previously unassessed relationship bet...
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2021
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Online Access: | http://dx.doi.org/10.1038/s41598-021-88517-9 http://www.nature.com/articles/s41598-021-88517-9.pdf http://www.nature.com/articles/s41598-021-88517-9 |
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crspringernat:10.1038/s41598-021-88517-9 2023-05-15T14:56:21+02:00 Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay Jackson, Rebecca Kvorning, Anna Bang Limoges, Audrey Georgiadis, Eleanor Olsen, Steffen M. Tallberg, Petra Andersen, Thorbjørn J. Mikkelsen, Naja Giraudeau, Jacques Massé, Guillaume Wacker, Lukas Ribeiro, Sofia H2020 Marie Skłodowska-Curie Actions Natural Sciences and Engineering Research Council of Canada Villum Fonden Seventh Framework Programme 2021 http://dx.doi.org/10.1038/s41598-021-88517-9 http://www.nature.com/articles/s41598-021-88517-9.pdf http://www.nature.com/articles/s41598-021-88517-9 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-88517-9 2022-01-04T08:21:20Z Abstract Baffin Bay hosts the largest and most productive of the Arctic polynyas: the North Water (NOW). Despite its significance and active role in water mass formation, the history of the NOW beyond the observational era remains poorly known. We reconcile the previously unassessed relationship between long-term NOW dynamics and ocean conditions by applying a multiproxy approach to two marine sediment cores from the region that, together, span the Holocene. Declining influence of Atlantic Water in the NOW is coeval with regional records that indicate the inception of a strong and recurrent polynya from ~ 4400 yrs BP, in line with Neoglacial cooling. During warmer Holocene intervals such as the Roman Warm Period, a weaker NOW is evident, and its reduced capacity to influence bottom ocean conditions facilitated northward penetration of Atlantic Water. Future warming in the Arctic may have negative consequences for this vital biological oasis, with the potential knock-on effect of warm water penetration further north and intensified melt of the marine-terminating glaciers that flank the coast of northwest Greenland. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Greenland Springer Nature (via Crossref) Arctic Baffin Bay Greenland Scientific Reports 11 1 |
institution |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Jackson, Rebecca Kvorning, Anna Bang Limoges, Audrey Georgiadis, Eleanor Olsen, Steffen M. Tallberg, Petra Andersen, Thorbjørn J. Mikkelsen, Naja Giraudeau, Jacques Massé, Guillaume Wacker, Lukas Ribeiro, Sofia Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
topic_facet |
Multidisciplinary |
description |
Abstract Baffin Bay hosts the largest and most productive of the Arctic polynyas: the North Water (NOW). Despite its significance and active role in water mass formation, the history of the NOW beyond the observational era remains poorly known. We reconcile the previously unassessed relationship between long-term NOW dynamics and ocean conditions by applying a multiproxy approach to two marine sediment cores from the region that, together, span the Holocene. Declining influence of Atlantic Water in the NOW is coeval with regional records that indicate the inception of a strong and recurrent polynya from ~ 4400 yrs BP, in line with Neoglacial cooling. During warmer Holocene intervals such as the Roman Warm Period, a weaker NOW is evident, and its reduced capacity to influence bottom ocean conditions facilitated northward penetration of Atlantic Water. Future warming in the Arctic may have negative consequences for this vital biological oasis, with the potential knock-on effect of warm water penetration further north and intensified melt of the marine-terminating glaciers that flank the coast of northwest Greenland. |
author2 |
H2020 Marie Skłodowska-Curie Actions Natural Sciences and Engineering Research Council of Canada Villum Fonden Seventh Framework Programme |
format |
Article in Journal/Newspaper |
author |
Jackson, Rebecca Kvorning, Anna Bang Limoges, Audrey Georgiadis, Eleanor Olsen, Steffen M. Tallberg, Petra Andersen, Thorbjørn J. Mikkelsen, Naja Giraudeau, Jacques Massé, Guillaume Wacker, Lukas Ribeiro, Sofia |
author_facet |
Jackson, Rebecca Kvorning, Anna Bang Limoges, Audrey Georgiadis, Eleanor Olsen, Steffen M. Tallberg, Petra Andersen, Thorbjørn J. Mikkelsen, Naja Giraudeau, Jacques Massé, Guillaume Wacker, Lukas Ribeiro, Sofia |
author_sort |
Jackson, Rebecca |
title |
Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
title_short |
Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
title_full |
Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
title_fullStr |
Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
title_full_unstemmed |
Holocene polynya dynamics and their interaction with oceanic heat transport in northernmost Baffin Bay |
title_sort |
holocene polynya dynamics and their interaction with oceanic heat transport in northernmost baffin bay |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-88517-9 http://www.nature.com/articles/s41598-021-88517-9.pdf http://www.nature.com/articles/s41598-021-88517-9 |
geographic |
Arctic Baffin Bay Greenland |
geographic_facet |
Arctic Baffin Bay Greenland |
genre |
Arctic Baffin Bay Baffin Bay Baffin Greenland |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Greenland |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-88517-9 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766328387321724928 |