Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age
Despite the relative climate stability of the present interglacial, it has been punctuated by several centennial-scale climatic oscillations; the latest of which are often colloquially referred to as the Medieval Climatic Anomaly (MCA) and the Little Ice Age (LIA). The most favored explanation for t...
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Amer Geophysical Union
2014
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ftarchimer:oai:archimer.ifremer.fr:40167 2023-05-15T16:29:28+02:00 Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age Moffa-sanchez, Paola Hall, Ian R. Barker, Stephen Thornalley, David J. R. Yashayaev, Igor 2014-03-01 application/pdf https://archimer.ifremer.fr/doc/00290/40167/39108.pdf https://archimer.ifremer.fr/doc/00290/40167/39109.txt https://archimer.ifremer.fr/doc/00290/40167/39110.docx https://doi.org/10.1002/2013PA002523 https://archimer.ifremer.fr/doc/00290/40167/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00290/40167/39108.pdf https://archimer.ifremer.fr/doc/00290/40167/39109.txt https://archimer.ifremer.fr/doc/00290/40167/39110.docx doi:10.1002/2013PA002523 https://archimer.ifremer.fr/doc/00290/40167/ 2014. The Authors info:eu-repo/semantics/openAccess restricted use Paleoceanography (0883-8305) (Amer Geophysical Union), 2014-03-01 , Vol. 29 , N. 3 , P. 160-175 planktonic foraminifera δ 18O Mg Ca surface Labrador Sea last millennium text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.1002/2013PA002523 2021-09-23T20:26:50Z Despite the relative climate stability of the present interglacial, it has been punctuated by several centennial-scale climatic oscillations; the latest of which are often colloquially referred to as the Medieval Climatic Anomaly (MCA) and the Little Ice Age (LIA). The most favored explanation for the cause of these anomalies is that they were triggered by variability in solar irradiance and/or volcanic activity and amplified by ocean-atmosphere-sea ice feedbacks. As such, changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) are widely believed to have been involved in the amplification of such climatic oscillations. The Labrador Sea is a key area of deep water formation. The waters produced here contribute approximately one third of the volume transport of the deep limb of the AMOC and drive changes in the North Atlantic surface hydrography and subpolar gyre circulation. In this study, we present multiproxy reconstructions from a high-resolution marine sediment core located south of Greenland that suggest an increase in the influence of polar waters reaching the Labrador Sea close to MCA-LIA transition. Changes in freshwater forcing may have reduced the formation of Labrador Sea Water and contributed toward the onset of the LIA cooling. Article in Journal/Newspaper Greenland Labrador Sea North Atlantic Planktonic foraminifera Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Greenland Paleoceanography 29 3 160 175 |
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 |
topic |
planktonic foraminifera δ 18O Mg Ca surface Labrador Sea last millennium |
spellingShingle |
planktonic foraminifera δ 18O Mg Ca surface Labrador Sea last millennium Moffa-sanchez, Paola Hall, Ian R. Barker, Stephen Thornalley, David J. R. Yashayaev, Igor Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
topic_facet |
planktonic foraminifera δ 18O Mg Ca surface Labrador Sea last millennium |
description |
Despite the relative climate stability of the present interglacial, it has been punctuated by several centennial-scale climatic oscillations; the latest of which are often colloquially referred to as the Medieval Climatic Anomaly (MCA) and the Little Ice Age (LIA). The most favored explanation for the cause of these anomalies is that they were triggered by variability in solar irradiance and/or volcanic activity and amplified by ocean-atmosphere-sea ice feedbacks. As such, changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) are widely believed to have been involved in the amplification of such climatic oscillations. The Labrador Sea is a key area of deep water formation. The waters produced here contribute approximately one third of the volume transport of the deep limb of the AMOC and drive changes in the North Atlantic surface hydrography and subpolar gyre circulation. In this study, we present multiproxy reconstructions from a high-resolution marine sediment core located south of Greenland that suggest an increase in the influence of polar waters reaching the Labrador Sea close to MCA-LIA transition. Changes in freshwater forcing may have reduced the formation of Labrador Sea Water and contributed toward the onset of the LIA cooling. |
format |
Article in Journal/Newspaper |
author |
Moffa-sanchez, Paola Hall, Ian R. Barker, Stephen Thornalley, David J. R. Yashayaev, Igor |
author_facet |
Moffa-sanchez, Paola Hall, Ian R. Barker, Stephen Thornalley, David J. R. Yashayaev, Igor |
author_sort |
Moffa-sanchez, Paola |
title |
Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
title_short |
Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
title_full |
Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
title_fullStr |
Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
title_full_unstemmed |
Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age |
title_sort |
surface changes in the eastern labrador sea around the onset of the little ice age |
publisher |
Amer Geophysical Union |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00290/40167/39108.pdf https://archimer.ifremer.fr/doc/00290/40167/39109.txt https://archimer.ifremer.fr/doc/00290/40167/39110.docx https://doi.org/10.1002/2013PA002523 https://archimer.ifremer.fr/doc/00290/40167/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Labrador Sea North Atlantic Planktonic foraminifera Sea ice |
genre_facet |
Greenland Labrador Sea North Atlantic Planktonic foraminifera Sea ice |
op_source |
Paleoceanography (0883-8305) (Amer Geophysical Union), 2014-03-01 , Vol. 29 , N. 3 , P. 160-175 |
op_relation |
https://archimer.ifremer.fr/doc/00290/40167/39108.pdf https://archimer.ifremer.fr/doc/00290/40167/39109.txt https://archimer.ifremer.fr/doc/00290/40167/39110.docx doi:10.1002/2013PA002523 https://archimer.ifremer.fr/doc/00290/40167/ |
op_rights |
2014. The Authors info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/2013PA002523 |
container_title |
Paleoceanography |
container_volume |
29 |
container_issue |
3 |
container_start_page |
160 |
op_container_end_page |
175 |
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1766019177143861248 |