Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts

Planktonic foraminiferal census counts are used to construct high-resolution sea surface temperature (SST) and subsurface (thermocline) temperature records at a core site in the Tobago Basin, Lesser Antilles. The record is used to document climatic variability at this tropical site in comparison to...

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Detalles Bibliográficos
Autores: Hüls, Matthias, Zahn, Rainer
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:25440
Acceso en línea:https://ddd.uab.cat/record/25440
https://dx.doi.org/urn:doi:10.1029/1999PA000462
Access Level:acceso abierto
Palabra clave:Oceans
Micropaleontology
Paleoclimatology
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spelling Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census countsHüls, MatthiasZahn, RainerOceansMicropaleontologyPaleoclimatologyPlanktonic foraminiferal census counts are used to construct high-resolution sea surface temperature (SST) and subsurface (thermocline) temperature records at a core site in the Tobago Basin, Lesser Antilles. The record is used to document climatic variability at this tropical site in comparison to middle- and high-latitude sites and to test current concepts of cross-equatorial heat transports as a major player in interhemispheric climate variability. Temperatures are estimated using transfer function and modern analog techniques. Glacial-maximum cooling of 2.5°'3°C is indicated; maximum cooling by 4°C is inferred for isotope stage 3. The SST record displays millennial-scale variability with temperature jumps of up to 3°C and closely tracks the structure of ice-core Dansgaard/Oeschger cycles. SST variations in part of the record run opposite to the SST evolution at high northern latitude sites, pointing to thermohaline circulation and marine heat transport as an important factor driving SST in the tropical and high-latitude Atlantic, both on orbital and suborbital timescales. 22000-01-0120002000-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/25440https://dx.doi.org/urn:doi:10.1029/1999PA000462reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:254402026-06-06T12:50:31Z
dc.title.none.fl_str_mv Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
title Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
spellingShingle Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
Hüls, Matthias
Oceans
Micropaleontology
Paleoclimatology
title_short Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
title_full Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
title_fullStr Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
title_full_unstemmed Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
title_sort Millennial-scale sea surface temperature variability in the western tropical North Atlantic from planktonic foraminiferal census counts
dc.creator.none.fl_str_mv Hüls, Matthias
Zahn, Rainer
author Hüls, Matthias
author_facet Hüls, Matthias
Zahn, Rainer
author_role author
author2 Zahn, Rainer
author2_role author
dc.subject.none.fl_str_mv Oceans
Micropaleontology
Paleoclimatology
topic Oceans
Micropaleontology
Paleoclimatology
description Planktonic foraminiferal census counts are used to construct high-resolution sea surface temperature (SST) and subsurface (thermocline) temperature records at a core site in the Tobago Basin, Lesser Antilles. The record is used to document climatic variability at this tropical site in comparison to middle- and high-latitude sites and to test current concepts of cross-equatorial heat transports as a major player in interhemispheric climate variability. Temperatures are estimated using transfer function and modern analog techniques. Glacial-maximum cooling of 2.5°'3°C is indicated; maximum cooling by 4°C is inferred for isotope stage 3. The SST record displays millennial-scale variability with temperature jumps of up to 3°C and closely tracks the structure of ice-core Dansgaard/Oeschger cycles. SST variations in part of the record run opposite to the SST evolution at high northern latitude sites, pointing to thermohaline circulation and marine heat transport as an important factor driving SST in the tropical and high-latitude Atlantic, both on orbital and suborbital timescales.
publishDate 2000
dc.date.none.fl_str_mv 2
2000-01-01
2000
2000-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/25440
https://dx.doi.org/urn:doi:10.1029/1999PA000462
url https://ddd.uab.cat/record/25440
https://dx.doi.org/urn:doi:10.1029/1999PA000462
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
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https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
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https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
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