Sea surface temperature variability in the subpolar Atlantic over the last two millennia
A decadal resolution time series of sea surface temperature (SST) spanning the last two millennia is reconstructed by combining a proxy record from a new sediment sequence with previously published data from core MD99-2275, north of Iceland. The alkenone based SST reconstruction is validated with hi...
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Language: | English |
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Amer Geophysical Union
2011
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Online Access: | https://archimer.ifremer.fr/doc/00227/33776/32585.pdf https://archimer.ifremer.fr/doc/00227/33776/32586.pdf https://doi.org/10.1029/2011PA002169 https://archimer.ifremer.fr/doc/00227/33776/ |
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ftarchimer:oai:archimer.ifremer.fr:33776 2023-05-15T16:49:51+02:00 Sea surface temperature variability in the subpolar Atlantic over the last two millennia Sicre, M. -a. Hall, I. R. Mignot, J. Khodri, M. Ezat, U. Truong, M. -x. Eiriksson, J. Knudsen, K. -l. 2011-12 application/pdf https://archimer.ifremer.fr/doc/00227/33776/32585.pdf https://archimer.ifremer.fr/doc/00227/33776/32586.pdf https://doi.org/10.1029/2011PA002169 https://archimer.ifremer.fr/doc/00227/33776/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00227/33776/32585.pdf https://archimer.ifremer.fr/doc/00227/33776/32586.pdf doi:10.1029/2011PA002169 https://archimer.ifremer.fr/doc/00227/33776/ Copyright 2011 by the American Geophysical Union info:eu-repo/semantics/openAccess restricted use Paleoceanography (0883-8305) (Amer Geophysical Union), 2011-12 , Vol. 26 , N. 4 / PA4218 , P. 1-10 text Publication info:eu-repo/semantics/article 2011 ftarchimer https://doi.org/10.1029/2011PA002169 2021-09-23T20:25:10Z A decadal resolution time series of sea surface temperature (SST) spanning the last two millennia is reconstructed by combining a proxy record from a new sediment sequence with previously published data from core MD99-2275, north of Iceland. The alkenone based SST reconstruction is validated with historic observational data and compared to a new similar temporal resolution reconstruction obtained from sediment core RAPiD21-3K, in the subpolar North Atlantic. The two SST paleorecords show consistent multidecadal scale coolings throughout the interval and similar expressions during the contrasted climatic periods 'colloquially known' as the Medieval Climatic Anomaly (MCA) and Little Ice Age (LIA). In order to further understand the temporal and spatial SST variations and investigate the influence of natural forcings on the observed SST changes during the last millennium, we compare our time series to simulations using the Institut Pierre-Simon Laplace IPSLCM4-v2 climate model. This comparison highlights the potential importance of volcanism as a natural forcing driving coherent abrupt cooling events captured in the subpolar North Atlantic records. Article in Journal/Newspaper Iceland North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Laplace ENVELOPE(141.467,141.467,-66.782,-66.782) Paleoceanography 26 4 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
A decadal resolution time series of sea surface temperature (SST) spanning the last two millennia is reconstructed by combining a proxy record from a new sediment sequence with previously published data from core MD99-2275, north of Iceland. The alkenone based SST reconstruction is validated with historic observational data and compared to a new similar temporal resolution reconstruction obtained from sediment core RAPiD21-3K, in the subpolar North Atlantic. The two SST paleorecords show consistent multidecadal scale coolings throughout the interval and similar expressions during the contrasted climatic periods 'colloquially known' as the Medieval Climatic Anomaly (MCA) and Little Ice Age (LIA). In order to further understand the temporal and spatial SST variations and investigate the influence of natural forcings on the observed SST changes during the last millennium, we compare our time series to simulations using the Institut Pierre-Simon Laplace IPSLCM4-v2 climate model. This comparison highlights the potential importance of volcanism as a natural forcing driving coherent abrupt cooling events captured in the subpolar North Atlantic records. |
format |
Article in Journal/Newspaper |
author |
Sicre, M. -a. Hall, I. R. Mignot, J. Khodri, M. Ezat, U. Truong, M. -x. Eiriksson, J. Knudsen, K. -l. |
spellingShingle |
Sicre, M. -a. Hall, I. R. Mignot, J. Khodri, M. Ezat, U. Truong, M. -x. Eiriksson, J. Knudsen, K. -l. Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
author_facet |
Sicre, M. -a. Hall, I. R. Mignot, J. Khodri, M. Ezat, U. Truong, M. -x. Eiriksson, J. Knudsen, K. -l. |
author_sort |
Sicre, M. -a. |
title |
Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
title_short |
Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
title_full |
Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
title_fullStr |
Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
title_full_unstemmed |
Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
title_sort |
sea surface temperature variability in the subpolar atlantic over the last two millennia |
publisher |
Amer Geophysical Union |
publishDate |
2011 |
url |
https://archimer.ifremer.fr/doc/00227/33776/32585.pdf https://archimer.ifremer.fr/doc/00227/33776/32586.pdf https://doi.org/10.1029/2011PA002169 https://archimer.ifremer.fr/doc/00227/33776/ |
long_lat |
ENVELOPE(141.467,141.467,-66.782,-66.782) |
geographic |
Laplace |
geographic_facet |
Laplace |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_source |
Paleoceanography (0883-8305) (Amer Geophysical Union), 2011-12 , Vol. 26 , N. 4 / PA4218 , P. 1-10 |
op_relation |
https://archimer.ifremer.fr/doc/00227/33776/32585.pdf https://archimer.ifremer.fr/doc/00227/33776/32586.pdf doi:10.1029/2011PA002169 https://archimer.ifremer.fr/doc/00227/33776/ |
op_rights |
Copyright 2011 by the American Geophysical Union info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2011PA002169 |
container_title |
Paleoceanography |
container_volume |
26 |
container_issue |
4 |
_version_ |
1766040032859127808 |