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...
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Online Access: | https://epic.awi.de/id/eprint/42670/ https://epic.awi.de/id/eprint/42670/1/Sha2016QSR.pdf https://hdl.handle.net/10013/epic.49328 https://hdl.handle.net/10013/epic.49328.d001 |
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ftawi:oai:epic.awi.de:42670 2024-09-15T17:53:51+00:00 Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium Sha, Longbin JIang, Hui Seidenkrantz, Marit-Solveig Muscheler, R. Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo 2016-01 application/pdf https://epic.awi.de/id/eprint/42670/ https://epic.awi.de/id/eprint/42670/1/Sha2016QSR.pdf https://hdl.handle.net/10013/epic.49328 https://hdl.handle.net/10013/epic.49328.d001 unknown ELSEVIER https://epic.awi.de/id/eprint/42670/1/Sha2016QSR.pdf https://hdl.handle.net/10013/epic.49328.d001 Sha, L. , JIang, H. , Seidenkrantz, M. S. , Muscheler, R. , Zhang, X. orcid:0000-0003-1833-9689 , Knudsen, M. F. , Olsen, J. , Knudsen, K. L. and Zhang, W. (2016) Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium , Quaternary Science Reviews, 131 , pp. 148-156 . doi:10.1016/j.quascirev.2015.11.002 <https://doi.org/10.1016/j.quascirev.2015.11.002> , hdl:10013/epic.49328 EPIC3Quaternary Science Reviews, ELSEVIER, 131, pp. 148-156 Article isiRev 2016 ftawi https://doi.org/10.1016/j.quascirev.2015.11.002 2024-06-24T04:15:36Z 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 Ocean Greenland Greenland Sea Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Quaternary Science Reviews 131 148 156 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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, R. Zhang, Xu Knudsen, Mads Faurschou Olsen, Jesper Knudsen, Karen Luise Zhang, Weiguo |
spellingShingle |
Sha, Longbin JIang, Hui Seidenkrantz, Marit-Solveig Muscheler, R. 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 |
author_facet |
Sha, Longbin JIang, Hui Seidenkrantz, Marit-Solveig Muscheler, R. 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 |
publisher |
ELSEVIER |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/42670/ https://epic.awi.de/id/eprint/42670/1/Sha2016QSR.pdf https://hdl.handle.net/10013/epic.49328 https://hdl.handle.net/10013/epic.49328.d001 |
genre |
Arctic Ocean Greenland Greenland Sea Sea ice |
genre_facet |
Arctic Ocean Greenland Greenland Sea Sea ice |
op_source |
EPIC3Quaternary Science Reviews, ELSEVIER, 131, pp. 148-156 |
op_relation |
https://epic.awi.de/id/eprint/42670/1/Sha2016QSR.pdf https://hdl.handle.net/10013/epic.49328.d001 Sha, L. , JIang, H. , Seidenkrantz, M. S. , Muscheler, R. , Zhang, X. orcid:0000-0003-1833-9689 , Knudsen, M. F. , Olsen, J. , Knudsen, K. L. and Zhang, W. (2016) Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium , Quaternary Science Reviews, 131 , pp. 148-156 . doi:10.1016/j.quascirev.2015.11.002 <https://doi.org/10.1016/j.quascirev.2015.11.002> , hdl:10013/epic.49328 |
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 |
_version_ |
1810429961528410112 |