Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas
Sources and timing of freshwater forcing relative to hydroclimate shifts recorded in Greenland ice cores at the onset of Younger Dryas, ~12,800 years ago, remain speculative. Here we show that progressive Fennoscandian Ice Sheet (FIS) melting 13,100–12,880 years ago generates a hydroclimate dipole w...
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Online Access: | http://hdl.handle.net/10026.1/3813 https://doi.org/10.1038/ncomms9939 |
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/3813 2023-05-15T16:12:49+02:00 Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas Muschitiello, F Pausata, FSR Watson, J Smittenberg, R Abubakr, AM Brooks, SJ Whitehouse, NJ Karlatou-Charalampopoulou, A Wolfarth, B 2015-11-17 0 - 0 http://hdl.handle.net/10026.1/3813 https://doi.org/10.1038/ncomms9939 en eng 8939 http://hdl.handle.net/10026.1/3813 doi:10.1038/ncomms9939 No embargo Climate change Younger Dyas Fennoscandian ice sheet Late Glacial climate Journal Article 2015 ftunivplympearl https://doi.org/10.1038/ncomms9939 2021-03-09T18:33:38Z Sources and timing of freshwater forcing relative to hydroclimate shifts recorded in Greenland ice cores at the onset of Younger Dryas, ~12,800 years ago, remain speculative. Here we show that progressive Fennoscandian Ice Sheet (FIS) melting 13,100–12,880 years ago generates a hydroclimate dipole with drier–colder conditions in Northern Europe and wetter–warmer conditions in Greenland. FIS melting culminates 12,880 years ago synchronously with the start of Greenland Stadial 1 and a large-scale hydroclimate transition lasting ~180 years. Transient climate model simulations forced with FIS freshwater reproduce the initial hydroclimate dipole through sea-ice feedbacks in the Nordic Seas. The transition is attributed to the export of excess sea ice to the subpolar North Atlantic and a subsequent southward shift of the westerly winds. We suggest that North Atlantic hydroclimate sensitivity to FIS freshwater can explain the pace and sign of shifts recorded in Greenland at the climate transition into the Younger Dryas. Article in Journal/Newspaper Fennoscandian Greenland Greenland ice cores Ice Sheet Nordic Seas North Atlantic Sea ice PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) Greenland Nature Communications 6 1 |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
topic |
Climate change Younger Dyas Fennoscandian ice sheet Late Glacial climate |
spellingShingle |
Climate change Younger Dyas Fennoscandian ice sheet Late Glacial climate Muschitiello, F Pausata, FSR Watson, J Smittenberg, R Abubakr, AM Brooks, SJ Whitehouse, NJ Karlatou-Charalampopoulou, A Wolfarth, B Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
topic_facet |
Climate change Younger Dyas Fennoscandian ice sheet Late Glacial climate |
description |
Sources and timing of freshwater forcing relative to hydroclimate shifts recorded in Greenland ice cores at the onset of Younger Dryas, ~12,800 years ago, remain speculative. Here we show that progressive Fennoscandian Ice Sheet (FIS) melting 13,100–12,880 years ago generates a hydroclimate dipole with drier–colder conditions in Northern Europe and wetter–warmer conditions in Greenland. FIS melting culminates 12,880 years ago synchronously with the start of Greenland Stadial 1 and a large-scale hydroclimate transition lasting ~180 years. Transient climate model simulations forced with FIS freshwater reproduce the initial hydroclimate dipole through sea-ice feedbacks in the Nordic Seas. The transition is attributed to the export of excess sea ice to the subpolar North Atlantic and a subsequent southward shift of the westerly winds. We suggest that North Atlantic hydroclimate sensitivity to FIS freshwater can explain the pace and sign of shifts recorded in Greenland at the climate transition into the Younger Dryas. |
format |
Article in Journal/Newspaper |
author |
Muschitiello, F Pausata, FSR Watson, J Smittenberg, R Abubakr, AM Brooks, SJ Whitehouse, NJ Karlatou-Charalampopoulou, A Wolfarth, B |
author_facet |
Muschitiello, F Pausata, FSR Watson, J Smittenberg, R Abubakr, AM Brooks, SJ Whitehouse, NJ Karlatou-Charalampopoulou, A Wolfarth, B |
author_sort |
Muschitiello, F |
title |
Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
title_short |
Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
title_full |
Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
title_fullStr |
Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
title_full_unstemmed |
Fennoscandian freshwater control on Greenland hydroclimate shifts at the onset of the Younger Dryas |
title_sort |
fennoscandian freshwater control on greenland hydroclimate shifts at the onset of the younger dryas |
publishDate |
2015 |
url |
http://hdl.handle.net/10026.1/3813 https://doi.org/10.1038/ncomms9939 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Fennoscandian Greenland Greenland ice cores Ice Sheet Nordic Seas North Atlantic Sea ice |
genre_facet |
Fennoscandian Greenland Greenland ice cores Ice Sheet Nordic Seas North Atlantic Sea ice |
op_relation |
8939 http://hdl.handle.net/10026.1/3813 doi:10.1038/ncomms9939 |
op_rights |
No embargo |
op_doi |
https://doi.org/10.1038/ncomms9939 |
container_title |
Nature Communications |
container_volume |
6 |
container_issue |
1 |
_version_ |
1765998431002689536 |