Sub sea surface temperatures in the Polar North Atlantic during the Holocene: Planktic foraminiferal Mg/Ca temperature reconstructions
Holocene sea surface temperatures in the eastern Fram Strait are reconstructed based on Mg/Ca ratios measured on the planktic foraminifer Neogloboquadrina pachyderma (sin). The reconstructed sub sea surface temperatures (sSSTMg/Ca) fluctuate markedly during the earliest Holocene at ~11.7 and 10.5 ky...
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| Veröffentlicht in: | Holocene (Sevenoaks) 2014-01, Vol.24 (1), p.93-103 |
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| creator | Aagaard-Sørensen, Steffen Husum, Katrine Hald, Morten Marchitto, Thomas Godtliebsen, Fred |
| description | Holocene sea surface temperatures in the eastern Fram Strait are reconstructed based on Mg/Ca ratios measured on the planktic foraminifer Neogloboquadrina pachyderma (sin). The reconstructed sub sea surface temperatures (sSSTMg/Ca) fluctuate markedly during the earliest Holocene at ~11.7 and 10.5 kyr BP. This is probably in response to the varying presence of sea-ice and deglacial meltwater. Between ~10.5–7.9 kyr BP, the sSSTMg/Ca values are relatively high (~4°C) and more stable reflecting high insolation and intensified poleward advection of Atlantic Water. After 7.9 kyr BP, the sSSTMg/Ca values decline to an average of ~3°C throughout the mid-Holocene. These changes can be attributed to a combined effect of reduced poleward oceanic heat advection and a decline in insolation as well as a gradually increased influence of eastward migrating Arctic Water. The sSSTMg/Ca values increase and vary between 2.1°C and 5.8°C from ~2.7 kyr BP to the present. This warming is in contrast to declining late-Holocene insolation and may instead be explained by factors including increased advection of oceanic heat to the Arctic region possibly insulated beneath a widening freshwater layer in the northern North Atlantic in conjunction with a shift in calcification season and/or depth habitat of N. pachyderma (sin). |
| doi_str_mv | 10.1177/0959683613515730 |
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The reconstructed sub sea surface temperatures (sSSTMg/Ca) fluctuate markedly during the earliest Holocene at ~11.7 and 10.5 kyr BP. This is probably in response to the varying presence of sea-ice and deglacial meltwater. Between ~10.5–7.9 kyr BP, the sSSTMg/Ca values are relatively high (~4°C) and more stable reflecting high insolation and intensified poleward advection of Atlantic Water. After 7.9 kyr BP, the sSSTMg/Ca values decline to an average of ~3°C throughout the mid-Holocene. These changes can be attributed to a combined effect of reduced poleward oceanic heat advection and a decline in insolation as well as a gradually increased influence of eastward migrating Arctic Water. The sSSTMg/Ca values increase and vary between 2.1°C and 5.8°C from ~2.7 kyr BP to the present. This warming is in contrast to declining late-Holocene insolation and may instead be explained by factors including increased advection of oceanic heat to the Arctic region possibly insulated beneath a widening freshwater layer in the northern North Atlantic in conjunction with a shift in calcification season and/or depth habitat of N. pachyderma (sin).</description><identifier>ISSN: 0959-6836</identifier><identifier>EISSN: 1477-0911</identifier><identifier>DOI: 10.1177/0959683613515730</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Foraminifera ; Geofag: 450 ; Geosciences: 450 ; Marine ; Matematikk og Naturvitenskap: 400 ; Mathematics and natural science: 400 ; Neogloboquadrina pachyderma ; Ocean temperature ; Oceanography ; Oceanography: 452 ; Oseanografi: 452 ; Paleoecology ; Studies ; Surface water ; VDP</subject><ispartof>Holocene (Sevenoaks), 2014-01, Vol.24 (1), p.93-103</ispartof><rights>The Author(s) 2013</rights><rights>SAGE Publications © Jan 2014</rights><rights>info:eu-repo/semantics/openAccess</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a430t-beb4e6da151a0c1b34c4a377ae70a2dbbd23f68bdd6bc972d1a7c26c3f118ca13</citedby><cites>FETCH-LOGICAL-a430t-beb4e6da151a0c1b34c4a377ae70a2dbbd23f68bdd6bc972d1a7c26c3f118ca13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0959683613515730$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0959683613515730$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>230,314,780,784,885,21818,26566,27923,27924,43620,43621</link.rule.ids></links><search><creatorcontrib>Aagaard-Sørensen, Steffen</creatorcontrib><creatorcontrib>Husum, Katrine</creatorcontrib><creatorcontrib>Hald, Morten</creatorcontrib><creatorcontrib>Marchitto, Thomas</creatorcontrib><creatorcontrib>Godtliebsen, Fred</creatorcontrib><title>Sub sea surface temperatures in the Polar North Atlantic during the Holocene: Planktic foraminiferal Mg/Ca temperature reconstructions</title><title>Holocene (Sevenoaks)</title><description>Holocene sea surface temperatures in the eastern Fram Strait are reconstructed based on Mg/Ca ratios measured on the planktic foraminifer Neogloboquadrina pachyderma (sin). The reconstructed sub sea surface temperatures (sSSTMg/Ca) fluctuate markedly during the earliest Holocene at ~11.7 and 10.5 kyr BP. This is probably in response to the varying presence of sea-ice and deglacial meltwater. Between ~10.5–7.9 kyr BP, the sSSTMg/Ca values are relatively high (~4°C) and more stable reflecting high insolation and intensified poleward advection of Atlantic Water. After 7.9 kyr BP, the sSSTMg/Ca values decline to an average of ~3°C throughout the mid-Holocene. These changes can be attributed to a combined effect of reduced poleward oceanic heat advection and a decline in insolation as well as a gradually increased influence of eastward migrating Arctic Water. The sSSTMg/Ca values increase and vary between 2.1°C and 5.8°C from ~2.7 kyr BP to the present. 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Husum, Katrine ; Hald, Morten ; Marchitto, Thomas ; Godtliebsen, Fred</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a430t-beb4e6da151a0c1b34c4a377ae70a2dbbd23f68bdd6bc972d1a7c26c3f118ca13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Foraminifera</topic><topic>Geofag: 450</topic><topic>Geosciences: 450</topic><topic>Marine</topic><topic>Matematikk og Naturvitenskap: 400</topic><topic>Mathematics and natural science: 400</topic><topic>Neogloboquadrina pachyderma</topic><topic>Ocean temperature</topic><topic>Oceanography</topic><topic>Oceanography: 452</topic><topic>Oseanografi: 452</topic><topic>Paleoecology</topic><topic>Studies</topic><topic>Surface water</topic><topic>VDP</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aagaard-Sørensen, Steffen</creatorcontrib><creatorcontrib>Husum, Katrine</creatorcontrib><creatorcontrib>Hald, Morten</creatorcontrib><creatorcontrib>Marchitto, Thomas</creatorcontrib><creatorcontrib>Godtliebsen, Fred</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>NORA - Norwegian Open Research Archives</collection><jtitle>Holocene (Sevenoaks)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aagaard-Sørensen, Steffen</au><au>Husum, Katrine</au><au>Hald, Morten</au><au>Marchitto, Thomas</au><au>Godtliebsen, Fred</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sub sea surface temperatures in the Polar North Atlantic during the Holocene: Planktic foraminiferal Mg/Ca temperature reconstructions</atitle><jtitle>Holocene (Sevenoaks)</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>24</volume><issue>1</issue><spage>93</spage><epage>103</epage><pages>93-103</pages><issn>0959-6836</issn><eissn>1477-0911</eissn><abstract>Holocene sea surface temperatures in the eastern Fram Strait are reconstructed based on Mg/Ca ratios measured on the planktic foraminifer Neogloboquadrina pachyderma (sin). The reconstructed sub sea surface temperatures (sSSTMg/Ca) fluctuate markedly during the earliest Holocene at ~11.7 and 10.5 kyr BP. This is probably in response to the varying presence of sea-ice and deglacial meltwater. Between ~10.5–7.9 kyr BP, the sSSTMg/Ca values are relatively high (~4°C) and more stable reflecting high insolation and intensified poleward advection of Atlantic Water. After 7.9 kyr BP, the sSSTMg/Ca values decline to an average of ~3°C throughout the mid-Holocene. These changes can be attributed to a combined effect of reduced poleward oceanic heat advection and a decline in insolation as well as a gradually increased influence of eastward migrating Arctic Water. The sSSTMg/Ca values increase and vary between 2.1°C and 5.8°C from ~2.7 kyr BP to the present. This warming is in contrast to declining late-Holocene insolation and may instead be explained by factors including increased advection of oceanic heat to the Arctic region possibly insulated beneath a widening freshwater layer in the northern North Atlantic in conjunction with a shift in calcification season and/or depth habitat of N. pachyderma (sin).</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1177/0959683613515730</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Holocene (Sevenoaks), 2014-01, Vol.24 (1), p.93-103 |
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| subjects | Foraminifera Geofag: 450 Geosciences: 450 Marine Matematikk og Naturvitenskap: 400 Mathematics and natural science: 400 Neogloboquadrina pachyderma Ocean temperature Oceanography Oceanography: 452 Oseanografi: 452 Paleoecology Studies Surface water VDP |
| title | Sub sea surface temperatures in the Polar North Atlantic during the Holocene: Planktic foraminiferal Mg/Ca temperature reconstructions |
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