Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function

We provide a new multivariate calibration-function based on South Atlantic modern assemblages of planktonic foraminifera and atlas water column parameters from the Antarctic Circumpolar Current to the Subtropical Gyre and tropical warm waters (i.e., 60°S to 0°S). Therefore, we used a dataset with th...

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Detalles Bibliográficos
Autores principales: Chapori, N.G., Chiessi, C.M., Bickert, T., Laprida, C.
Formato: JOUR
Materias:
Multivariate correlation-function
Planktonic foraminifera
Quaternary
Sea-surface temperature
Western south atlantic
abundance
gyre
Holocene
paleoceanography
planktonic foraminifera
reconstruction
sea surface temperature
sediment core
warm water
Antarctic Circumpolar Current
Atlantic Ocean
Atlantic Ocean (South)
Southern Ocean
Foraminifera
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00310182_v425_n_p67_Chapori
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00310182_v425_n_p67_Chapori
record_format dspace
spelling todo:paper_00310182_v425_n_p67_Chapori2023-10-03T14:40:58Z Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function Chapori, N.G. Chiessi, C.M. Bickert, T. Laprida, C. Multivariate correlation-function Planktonic foraminifera Quaternary Sea-surface temperature Western south atlantic abundance gyre Holocene paleoceanography planktonic foraminifera reconstruction sea surface temperature sediment core warm water Antarctic Circumpolar Current Atlantic Ocean Atlantic Ocean (South) Southern Ocean Foraminifera We provide a new multivariate calibration-function based on South Atlantic modern assemblages of planktonic foraminifera and atlas water column parameters from the Antarctic Circumpolar Current to the Subtropical Gyre and tropical warm waters (i.e., 60°S to 0°S). Therefore, we used a dataset with the abundance pattern of 35 taxonomic groups of planktonic foraminifera in 141 surface sediment samples. Five factors were taken into consideration for the analysis, which account for 93% of the total variance of the original data representing the regional main oceanographic fronts. The new calibration-function F141-35-5 enables the reconstruction of Late Quaternary summer and winter sea-surface temperatures with a statistical error of ~. 0.5°C. Our function was verified by its application to a sediment core extracted from the western South Atlantic. The downcore reconstruction shows negative anomalies in sea-surface temperatures during the early-mid Holocene and temperatures within the range of modern values during the late Holocene. This pattern is consistent with available reconstructions. © 2015 Elsevier B.V. Fil:Laprida, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00310182_v425_n_p67_Chapori
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Multivariate correlation-function
Planktonic foraminifera
Quaternary
Sea-surface temperature
Western south atlantic
abundance
gyre
Holocene
paleoceanography
planktonic foraminifera
reconstruction
sea surface temperature
sediment core
warm water
Antarctic Circumpolar Current
Atlantic Ocean
Atlantic Ocean (South)
Southern Ocean
Foraminifera
spellingShingle Multivariate correlation-function
Planktonic foraminifera
Quaternary
Sea-surface temperature
Western south atlantic
abundance
gyre
Holocene
paleoceanography
planktonic foraminifera
reconstruction
sea surface temperature
sediment core
warm water
Antarctic Circumpolar Current
Atlantic Ocean
Atlantic Ocean (South)
Southern Ocean
Foraminifera
Chapori, N.G.
Chiessi, C.M.
Bickert, T.
Laprida, C.
Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
topic_facet Multivariate correlation-function
Planktonic foraminifera
Quaternary
Sea-surface temperature
Western south atlantic
abundance
gyre
Holocene
paleoceanography
planktonic foraminifera
reconstruction
sea surface temperature
sediment core
warm water
Antarctic Circumpolar Current
Atlantic Ocean
Atlantic Ocean (South)
Southern Ocean
Foraminifera
description We provide a new multivariate calibration-function based on South Atlantic modern assemblages of planktonic foraminifera and atlas water column parameters from the Antarctic Circumpolar Current to the Subtropical Gyre and tropical warm waters (i.e., 60°S to 0°S). Therefore, we used a dataset with the abundance pattern of 35 taxonomic groups of planktonic foraminifera in 141 surface sediment samples. Five factors were taken into consideration for the analysis, which account for 93% of the total variance of the original data representing the regional main oceanographic fronts. The new calibration-function F141-35-5 enables the reconstruction of Late Quaternary summer and winter sea-surface temperatures with a statistical error of ~. 0.5°C. Our function was verified by its application to a sediment core extracted from the western South Atlantic. The downcore reconstruction shows negative anomalies in sea-surface temperatures during the early-mid Holocene and temperatures within the range of modern values during the late Holocene. This pattern is consistent with available reconstructions. © 2015 Elsevier B.V.
format JOUR
author Chapori, N.G.
Chiessi, C.M.
Bickert, T.
Laprida, C.
author_facet Chapori, N.G.
Chiessi, C.M.
Bickert, T.
Laprida, C.
author_sort Chapori, N.G.
title Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
title_short Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
title_full Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
title_fullStr Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
title_full_unstemmed Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function
title_sort sea-surface temperature reconstruction of the quaternary western south atlantic: new planktonic foraminiferal correlation function
url http://hdl.handle.net/20.500.12110/paper_00310182_v425_n_p67_Chapori
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AT chiessicm seasurfacetemperaturereconstructionofthequaternarywesternsouthatlanticnewplanktonicforaminiferalcorrelationfunction
AT bickertt seasurfacetemperaturereconstructionofthequaternarywesternsouthatlanticnewplanktonicforaminiferalcorrelationfunction
AT lapridac seasurfacetemperaturereconstructionofthequaternarywesternsouthatlanticnewplanktonicforaminiferalcorrelationfunction
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