The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model
The relatively warm early Holocene climate in the Nordic Seas, known as the Holocene Thermal Maximum (HTM), is often associated with an orbitally forced summer insolation maximum at 10 ka BP. The spatial and temporal response recorded in proxy data in the North Atlantic and the Nordic Seas reveal a...
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ftvuamstcris:oai:research.vu.nl:publications/4cc6aa01-3b42-4fef-b3a7-0ae27c716379 2023-05-15T16:27:11+02:00 The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model Blaschek, M. Renssen, H. 2013-07-29 application/pdf https://research.vu.nl/en/publications/4cc6aa01-3b42-4fef-b3a7-0ae27c716379 https://doi.org/10.5194/cpd-8-5263-2012 https://research.vu.nl/ws/files/659212/298452.pdf https://research.vu.nl/ws/files/80943515/Blaschek-Renssen-cp-2013.pdf http://www.clim-past-discuss.net/8/5263/2012/cpd-8-5263-2012.html eng eng info:eu-repo/semantics/openAccess Blaschek , M & Renssen , H 2013 , ' The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model ' , Climate of the Past , vol. 9 , pp. 1629-1643 . https://doi.org/10.5194/cpd-8-5263-2012 , https://doi.org/10.5194/cp-9-1629-2013 article 2013 ftvuamstcris https://doi.org/10.5194/cpd-8-5263-2012 2021-12-29T07:45:40Z The relatively warm early Holocene climate in the Nordic Seas, known as the Holocene Thermal Maximum (HTM), is often associated with an orbitally forced summer insolation maximum at 10 ka BP. The spatial and temporal response recorded in proxy data in the North Atlantic and the Nordic Seas reveal a complex interaction of mechanisms active in the HTM. Previous studies have investigated the impact of the Laurentide Ice Sheet (LIS), as a remnant from a previous glacial period, altering climate conditions with a continuous supply of melt water to the Labrador Sea and adjacent seas and with a downwind cooling effect from the remnant LIS. In our present work we extend this approach by investigating the impact of the Greenland Ice Sheet (GIS) on the early Holocene climate and the HTM. Reconstructions suggest melt rates of 13 mSv for 9 ka BP, which result in our model in a ocean surface cooling of up to 2 K near Greenland. Reconstructed summer SST gradients agree best with our simulation including GIS melt, confirming that the impact of early Holocene GIS is crucial for understanding the HTM characteristics in the Nordic Seas area. This implies that the modern and near-future GIS melt can be expected to play an active role in the climate system in the centuries to come. Article in Journal/Newspaper Greenland Ice Sheet Labrador Sea Nordic Seas North Atlantic Sea ice Vrije Universiteit Amsterdam (VU): Research Portal Greenland |
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Open Polar |
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Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
description |
The relatively warm early Holocene climate in the Nordic Seas, known as the Holocene Thermal Maximum (HTM), is often associated with an orbitally forced summer insolation maximum at 10 ka BP. The spatial and temporal response recorded in proxy data in the North Atlantic and the Nordic Seas reveal a complex interaction of mechanisms active in the HTM. Previous studies have investigated the impact of the Laurentide Ice Sheet (LIS), as a remnant from a previous glacial period, altering climate conditions with a continuous supply of melt water to the Labrador Sea and adjacent seas and with a downwind cooling effect from the remnant LIS. In our present work we extend this approach by investigating the impact of the Greenland Ice Sheet (GIS) on the early Holocene climate and the HTM. Reconstructions suggest melt rates of 13 mSv for 9 ka BP, which result in our model in a ocean surface cooling of up to 2 K near Greenland. Reconstructed summer SST gradients agree best with our simulation including GIS melt, confirming that the impact of early Holocene GIS is crucial for understanding the HTM characteristics in the Nordic Seas area. This implies that the modern and near-future GIS melt can be expected to play an active role in the climate system in the centuries to come. |
format |
Article in Journal/Newspaper |
author |
Blaschek, M. Renssen, H. |
spellingShingle |
Blaschek, M. Renssen, H. The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
author_facet |
Blaschek, M. Renssen, H. |
author_sort |
Blaschek, M. |
title |
The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
title_short |
The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
title_full |
The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
title_fullStr |
The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
title_full_unstemmed |
The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
title_sort |
holocene thermal maximum in the nordic seas: the impact of greenland ice sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model |
publishDate |
2013 |
url |
https://research.vu.nl/en/publications/4cc6aa01-3b42-4fef-b3a7-0ae27c716379 https://doi.org/10.5194/cpd-8-5263-2012 https://research.vu.nl/ws/files/659212/298452.pdf https://research.vu.nl/ws/files/80943515/Blaschek-Renssen-cp-2013.pdf http://www.clim-past-discuss.net/8/5263/2012/cpd-8-5263-2012.html |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet Labrador Sea Nordic Seas North Atlantic Sea ice |
genre_facet |
Greenland Ice Sheet Labrador Sea Nordic Seas North Atlantic Sea ice |
op_source |
Blaschek , M & Renssen , H 2013 , ' The Holocene thermal maximum in the Nordic Seas: the impact of Greenland Ice Sheet melt and other forcings in a coupled atmosphere-sea ice-ocean model ' , Climate of the Past , vol. 9 , pp. 1629-1643 . https://doi.org/10.5194/cpd-8-5263-2012 , https://doi.org/10.5194/cp-9-1629-2013 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cpd-8-5263-2012 |
_version_ |
1766016270136770560 |