A persistent Norwegian Atlantic Current through the Pleistocene glacials
Changes in ocean‐circulation regimes in the northern North Atlantic and the Nordic Seas may affect not only the Arctic but potentially hemispheric or even global climate. Therefore, unraveling the long‐term evolution of the North Atlantic Current‐Norwegian Atlantic Current system through the Pleisto...
Published in: | Geophysical Research Letters |
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Online Access: | https://research.manchester.ac.uk/en/publications/0912b4b4-dc23-4a8e-98a2-255138f26151 https://doi.org/10.1029/2018GL077819 |
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ftumanchesterpub:oai:pure.atira.dk:publications/0912b4b4-dc23-4a8e-98a2-255138f26151 2023-11-12T04:13:12+01:00 A persistent Norwegian Atlantic Current through the Pleistocene glacials Newton, Andrew Huuse, Mads Brocklehurst, Simon 2018-06-16 https://research.manchester.ac.uk/en/publications/0912b4b4-dc23-4a8e-98a2-255138f26151 https://doi.org/10.1029/2018GL077819 eng eng info:eu-repo/semantics/openAccess Newton , A , Huuse , M & Brocklehurst , S 2018 , ' A persistent Norwegian Atlantic Current through the Pleistocene glacials ' , Geophysical Research Letters , vol. 45 , no. 11 , pp. 5599-5608 . https://doi.org/10.1029/2018GL077819 North Atlantic Current North Atlantic Deep Water 3D Seismic 38 Reflection Mid-Norwegian Margin Iceberg Scours Seismic geomorphology article 2018 ftumanchesterpub https://doi.org/10.1029/2018GL077819 2023-10-30T09:15:34Z Changes in ocean‐circulation regimes in the northern North Atlantic and the Nordic Seas may affect not only the Arctic but potentially hemispheric or even global climate. Therefore, unraveling the long‐term evolution of the North Atlantic Current‐Norwegian Atlantic Current system through the Pleistocene glaciations could yield useful information and climatological context for understanding contemporary changes. In this work, ~50,000 km 2 of 3‐D seismic reflection data are used to investigate the Pleistocene stratigraphy for evidence of paleo‐oceanographic regimes on the mid‐Norwegian margin since 2.58 Ma. Across 33 semicontinuous regional paleo‐seafloor surfaces ~17,500 iceberg scours have been mapped. This mapping greatly expands our spatiotemporal understanding of currents and iceberg presence in the eastern Nordic Seas. The scours display a dominant southwest‐northeast trend that complements previous sedimentological and numerical modeling studies that suggest northward‐flowing currents in the Norwegian Sea during the Pleistocene. This paleo‐oceanographic study suggests that through many of the Pleistocene glaciations, the location of surface ocean currents in the Norwegian Sea and, by extension, the eastern North Atlantic, were broadly similar to the present. Article in Journal/Newspaper Arctic Iceberg* Nordic Seas north atlantic current North Atlantic Deep Water North Atlantic Norwegian Sea The University of Manchester: Research Explorer Geophysical Research Letters 45 11 5599 5608 |
institution |
Open Polar |
collection |
The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
topic |
North Atlantic Current North Atlantic Deep Water 3D Seismic 38 Reflection Mid-Norwegian Margin Iceberg Scours Seismic geomorphology |
spellingShingle |
North Atlantic Current North Atlantic Deep Water 3D Seismic 38 Reflection Mid-Norwegian Margin Iceberg Scours Seismic geomorphology Newton, Andrew Huuse, Mads Brocklehurst, Simon A persistent Norwegian Atlantic Current through the Pleistocene glacials |
topic_facet |
North Atlantic Current North Atlantic Deep Water 3D Seismic 38 Reflection Mid-Norwegian Margin Iceberg Scours Seismic geomorphology |
description |
Changes in ocean‐circulation regimes in the northern North Atlantic and the Nordic Seas may affect not only the Arctic but potentially hemispheric or even global climate. Therefore, unraveling the long‐term evolution of the North Atlantic Current‐Norwegian Atlantic Current system through the Pleistocene glaciations could yield useful information and climatological context for understanding contemporary changes. In this work, ~50,000 km 2 of 3‐D seismic reflection data are used to investigate the Pleistocene stratigraphy for evidence of paleo‐oceanographic regimes on the mid‐Norwegian margin since 2.58 Ma. Across 33 semicontinuous regional paleo‐seafloor surfaces ~17,500 iceberg scours have been mapped. This mapping greatly expands our spatiotemporal understanding of currents and iceberg presence in the eastern Nordic Seas. The scours display a dominant southwest‐northeast trend that complements previous sedimentological and numerical modeling studies that suggest northward‐flowing currents in the Norwegian Sea during the Pleistocene. This paleo‐oceanographic study suggests that through many of the Pleistocene glaciations, the location of surface ocean currents in the Norwegian Sea and, by extension, the eastern North Atlantic, were broadly similar to the present. |
format |
Article in Journal/Newspaper |
author |
Newton, Andrew Huuse, Mads Brocklehurst, Simon |
author_facet |
Newton, Andrew Huuse, Mads Brocklehurst, Simon |
author_sort |
Newton, Andrew |
title |
A persistent Norwegian Atlantic Current through the Pleistocene glacials |
title_short |
A persistent Norwegian Atlantic Current through the Pleistocene glacials |
title_full |
A persistent Norwegian Atlantic Current through the Pleistocene glacials |
title_fullStr |
A persistent Norwegian Atlantic Current through the Pleistocene glacials |
title_full_unstemmed |
A persistent Norwegian Atlantic Current through the Pleistocene glacials |
title_sort |
persistent norwegian atlantic current through the pleistocene glacials |
publishDate |
2018 |
url |
https://research.manchester.ac.uk/en/publications/0912b4b4-dc23-4a8e-98a2-255138f26151 https://doi.org/10.1029/2018GL077819 |
genre |
Arctic Iceberg* Nordic Seas north atlantic current North Atlantic Deep Water North Atlantic Norwegian Sea |
genre_facet |
Arctic Iceberg* Nordic Seas north atlantic current North Atlantic Deep Water North Atlantic Norwegian Sea |
op_source |
Newton , A , Huuse , M & Brocklehurst , S 2018 , ' A persistent Norwegian Atlantic Current through the Pleistocene glacials ' , Geophysical Research Letters , vol. 45 , no. 11 , pp. 5599-5608 . https://doi.org/10.1029/2018GL077819 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2018GL077819 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
11 |
container_start_page |
5599 |
op_container_end_page |
5608 |
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1782331322422788096 |