Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium
Arctic sea ice represents an important component of the climate system, and the present reduction of sea ice in the Arctic is of major concern. Despite its importance, little is known about past changes in sea-ice cover and the underlying forcing mechanisms. Here, we use diatom assemblages from a ma...
Published in: | Quaternary Science Reviews |
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Online Access: | https://pure.au.dk/portal/da/publications/solar-forcing-as-an-important-trigger-for-west-greenland-seaice-variability-over-the-last-millennium(476f714d-2547-4a4a-833d-3011c019f955).html https://doi.org/10.1016/j.quascirev.2015.11.002 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/476f714d-2547-4a4a-833d-3011c019f955 2023-12-31T10:03:13+01:00 Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium Sha, Longbin Jiang, Hui Seidenkrantz, Marit Solveig Muscheler, Raimund Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo 2016-01-01 https://pure.au.dk/portal/da/publications/solar-forcing-as-an-important-trigger-for-west-greenland-seaice-variability-over-the-last-millennium(476f714d-2547-4a4a-833d-3011c019f955).html https://doi.org/10.1016/j.quascirev.2015.11.002 eng eng https://pure.au.dk/portal/da/publications/solar-forcing-as-an-important-trigger-for-west-greenland-seaice-variability-over-the-last-millennium(476f714d-2547-4a4a-833d-3011c019f955).html info:eu-repo/semantics/restrictedAccess Sha , L , Jiang , H , Seidenkrantz , M S , Muscheler , R , Zhang , X , Knudsen , M F , Olsen , J , Knudsen , K L & Zhang , W 2016 , ' Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium ' , Quaternary Science Reviews , vol. 131 , no. A , pp. 148-156 . https://doi.org/10.1016/j.quascirev.2015.11.002 Last millennium Sea-ice variability Solar activity West Greenland article 2016 ftuniaarhuspubl https://doi.org/10.1016/j.quascirev.2015.11.002 2023-12-07T00:01:16Z Arctic sea ice represents an important component of the climate system, and the present reduction of sea ice in the Arctic is of major concern. Despite its importance, little is known about past changes in sea-ice cover and the underlying forcing mechanisms. Here, we use diatom assemblages from a marine sediment core collected from the West Greenland shelf to reconstruct changes in sea-ice cover over the last millennium. The proxy-based reconstruction demonstrates a generally strong link between changes in sea-ice cover and solar variability during the last millennium. Weaker (or stronger) solar forcing may result in the increase (or decrease) in sea-ice cover west of Greenland. In addition, model simulations show that variations in solar activity not only affect local sea-ice formation, but also control the sea-ice transport from the Arctic Ocean through a sea-ice-ocean-atmosphere feedback mechanism. The role of solar forcing, however, appears to have been more ambiguous during an interval around AD 1500, after the transition from the Medieval Climate Anomaly to the Little Ice Age, likely to be driven by a range of factors. Article in Journal/Newspaper Arctic Arctic Ocean Greenland Greenland Sea Sea ice Aarhus University: Research Quaternary Science Reviews 131 148 156 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Last millennium Sea-ice variability Solar activity West Greenland |
spellingShingle |
Last millennium Sea-ice variability Solar activity West Greenland Sha, Longbin Jiang, Hui Seidenkrantz, Marit Solveig Muscheler, Raimund Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
topic_facet |
Last millennium Sea-ice variability Solar activity West Greenland |
description |
Arctic sea ice represents an important component of the climate system, and the present reduction of sea ice in the Arctic is of major concern. Despite its importance, little is known about past changes in sea-ice cover and the underlying forcing mechanisms. Here, we use diatom assemblages from a marine sediment core collected from the West Greenland shelf to reconstruct changes in sea-ice cover over the last millennium. The proxy-based reconstruction demonstrates a generally strong link between changes in sea-ice cover and solar variability during the last millennium. Weaker (or stronger) solar forcing may result in the increase (or decrease) in sea-ice cover west of Greenland. In addition, model simulations show that variations in solar activity not only affect local sea-ice formation, but also control the sea-ice transport from the Arctic Ocean through a sea-ice-ocean-atmosphere feedback mechanism. The role of solar forcing, however, appears to have been more ambiguous during an interval around AD 1500, after the transition from the Medieval Climate Anomaly to the Little Ice Age, likely to be driven by a range of factors. |
format |
Article in Journal/Newspaper |
author |
Sha, Longbin Jiang, Hui Seidenkrantz, Marit Solveig Muscheler, Raimund Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo |
author_facet |
Sha, Longbin Jiang, Hui Seidenkrantz, Marit Solveig Muscheler, Raimund Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo |
author_sort |
Sha, Longbin |
title |
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
title_short |
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
title_full |
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
title_fullStr |
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
title_full_unstemmed |
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium |
title_sort |
solar forcing as an important trigger for west greenland sea-ice variability over the last millennium |
publishDate |
2016 |
url |
https://pure.au.dk/portal/da/publications/solar-forcing-as-an-important-trigger-for-west-greenland-seaice-variability-over-the-last-millennium(476f714d-2547-4a4a-833d-3011c019f955).html https://doi.org/10.1016/j.quascirev.2015.11.002 |
genre |
Arctic Arctic Ocean Greenland Greenland Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Greenland Greenland Sea Sea ice |
op_source |
Sha , L , Jiang , H , Seidenkrantz , M S , Muscheler , R , Zhang , X , Knudsen , M F , Olsen , J , Knudsen , K L & Zhang , W 2016 , ' Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium ' , Quaternary Science Reviews , vol. 131 , no. A , pp. 148-156 . https://doi.org/10.1016/j.quascirev.2015.11.002 |
op_relation |
https://pure.au.dk/portal/da/publications/solar-forcing-as-an-important-trigger-for-west-greenland-seaice-variability-over-the-last-millennium(476f714d-2547-4a4a-833d-3011c019f955).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2015.11.002 |
container_title |
Quaternary Science Reviews |
container_volume |
131 |
container_start_page |
148 |
op_container_end_page |
156 |
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1786819151304589312 |