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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American Geophysical Union
2011
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:30487 2023-06-11T04:13:09+02:00 Sea surface temperature variability in the subpolar Atlantic over the last two millennia Sicre, M.-A. Hall, Ian Robert Mignot, J. Khodri, M. Ezat, U. Truong, M.-X. Eiríksson, J. Knudsen, K.-L. 2011-12 application/pdf https://orca.cardiff.ac.uk/id/eprint/30487/ https://doi.org/10.1029/2011PA002169 https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf en eng American Geophysical Union https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf Sicre, M.-A., Hall, Ian Robert https://orca.cardiff.ac.uk/view/cardiffauthors/A002402L.html orcid:0000-0001-6960-1419 orcid:0000-0001-6960-1419, Mignot, J., Khodri, M., Ezat, U., Truong, M.-X., Eiríksson, J. and Knudsen, K.-L. 2011. Sea surface temperature variability in the subpolar Atlantic over the last two millennia. Paleoceanography 26 (4) , PA4218. 10.1029/2011PA002169 https://doi.org/10.1029/2011PA002169 file https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf doi:10.1029/2011PA002169 GC Oceanography Article PeerReviewed 2011 ftunivcardiff https://doi.org/10.1029/2011PA002169 2023-05-04T22:33:25Z 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 Cardiff University: ORCA (Online Research @ Cardiff) Laplace ENVELOPE(141.467,141.467,-66.782,-66.782) Paleoceanography 26 4 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
English |
topic |
GC Oceanography |
spellingShingle |
GC Oceanography Sicre, M.-A. Hall, Ian Robert Mignot, J. Khodri, M. Ezat, U. Truong, M.-X. Eiríksson, J. Knudsen, K.-L. Sea surface temperature variability in the subpolar Atlantic over the last two millennia |
topic_facet |
GC Oceanography |
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, Ian Robert Mignot, J. Khodri, M. Ezat, U. Truong, M.-X. Eiríksson, J. Knudsen, K.-L. |
author_facet |
Sicre, M.-A. Hall, Ian Robert Mignot, J. Khodri, M. Ezat, U. Truong, M.-X. Eiríksson, 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 |
American Geophysical Union |
publishDate |
2011 |
url |
https://orca.cardiff.ac.uk/id/eprint/30487/ https://doi.org/10.1029/2011PA002169 https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf |
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_relation |
https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf Sicre, M.-A., Hall, Ian Robert https://orca.cardiff.ac.uk/view/cardiffauthors/A002402L.html orcid:0000-0001-6960-1419 orcid:0000-0001-6960-1419, Mignot, J., Khodri, M., Ezat, U., Truong, M.-X., Eiríksson, J. and Knudsen, K.-L. 2011. Sea surface temperature variability in the subpolar Atlantic over the last two millennia. Paleoceanography 26 (4) , PA4218. 10.1029/2011PA002169 https://doi.org/10.1029/2011PA002169 file https://orca.cardiff.ac.uk/id/eprint/30487/1/Sicre%202011.pdf doi:10.1029/2011PA002169 |
op_doi |
https://doi.org/10.1029/2011PA002169 |
container_title |
Paleoceanography |
container_volume |
26 |
container_issue |
4 |
_version_ |
1768389852295856128 |