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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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310182_v425_n_p67_Chapori http://hdl.handle.net/20.500.12110/paper_00310182_v425_n_p67_Chapori |
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paper:paper_00310182_v425_n_p67_Chapori2023-06-08T14:56:43Z Sea-surface temperature reconstruction of the Quaternary western South Atlantic: New planktonic foraminiferal correlation function Laprida, Cecilia 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. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310182_v425_n_p67_Chapori 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 Laprida, Cecilia 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. |
author |
Laprida, Cecilia |
author_facet |
Laprida, Cecilia |
author_sort |
Laprida, Cecilia |
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 |
publishDate |
2015 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310182_v425_n_p67_Chapori http://hdl.handle.net/20.500.12110/paper_00310182_v425_n_p67_Chapori |
work_keys_str_mv |
AT lapridacecilia seasurfacetemperaturereconstructionofthequaternarywesternsouthatlanticnewplanktonicforaminiferalcorrelationfunction |
_version_ |
1768543936374112256 |