Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data
The modern state of the Atlantic meridional overturning circulation promotes a northerly maximum of tropical rainfall associated with the Intertropical Convergence Zone (ITCZ). For continental regions, abrupt millennial-scale meridional shifts of this rainbelt are well documented, but the behavior o...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.875299 2023-05-15T18:00:39+02:00 Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data Portilho-Ramos, Rodrigo Costa Chiessi, Cristiano Mazur Zhang, Yancheng Mulitza, Stefan Kucera, Michal Siccha, Michael Prange, Matthias Paul, André MEDIAN LATITUDE: 0.699028 * MEDIAN LONGITUDE: -46.060278 * SOUTH-BOUND LATITUDE: -1.579167 * WEST-BOUND LONGITUDE: -61.243333 * NORTH-BOUND LATITUDE: 12.090000 * EAST-BOUND LONGITUDE: -43.023667 * DATE/TIME START: 1996-04-19T00:00:00 * DATE/TIME END: 2012-02-24T02:00:00 2017-05-17 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.875299 https://doi.org/10.1594/PANGAEA.875299 en eng PANGAEA Zabel, Matthias (2013): XRF measurements on dry powder from sediment core GeoB16206-1. PANGAEA, https://doi.org/10.1594/PANGAEA.809006 Zhang, Yancheng; Chiessi, Cristiano Mazur; Mulitza, Stefan; Zabel, Matthias; Trindade, Ricardo F; Hollanda, Maria Helena B M; Dantas, Elton L; Govin, Aline; Tiedemann, Ralf; Wefer, Gerold (2015): Reconstruction of the provenance and distribution of terrigenous sediments off NE South America over the last 30ka. PANGAEA, https://doi.org/10.1594/PANGAEA.854054 https://doi.pangaea.de/10.1594/PANGAEA.875299 https://doi.org/10.1594/PANGAEA.875299 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Portilho-Ramos, Rodrigo Costa; Chiessi, Cristiano Mazur; Zhang, Yancheng; Mulitza, Stefan; Kucera, Michal; Siccha, Michael; Prange, Matthias; Paul, André (2017): Coupling of equatorial Atlantic surface stratification to glacial shifts in the tropical rainbelt. Scientific Reports, 7(1), https://doi.org/10.1038/s41598-017-01629-z Center for Marine Environmental Sciences MARUM Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.875299 https://doi.org/10.1038/s41598-017-01629-z https://doi.org/10.1594/PANGAEA.809006 https://doi.org/10.1594/PANGAEA.854054 2023-01-20T07:33:56Z The modern state of the Atlantic meridional overturning circulation promotes a northerly maximum of tropical rainfall associated with the Intertropical Convergence Zone (ITCZ). For continental regions, abrupt millennial-scale meridional shifts of this rainbelt are well documented, but the behavior of its oceanic counterpart is unclear due the lack of a robust proxy and high temporal resolution records. Here we show that the Atlantic ITCZ leaves a distinct signature in planktonic foraminifera assemblages. We applied this proxy to investigate the history of the Atlantic ITCZ for the last 30,000 years based on two high temporal resolution records from the western Atlantic Ocean. Our reconstruction indicates that the shallowest mixed layer associated with the Atlantic ITCZ unambiguously shifted meridionally in response to changes in the strength of the Atlantic meridional overturning with a southward displacement during Heinrich Stadials 2-1 and the Younger Dryas. We conclude that the Atlantic ITCZ was located at ca. 1°S (ca. 5° to the south of its modern annual mean position) during Heinrich Stadial 1. This supports a previous hypothesis, which postulates a southern hemisphere position of the oceanic ITCZ during climatic states with substantially reduced or absent cross-equatorial oceanic meridional heat transport. Dataset Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-61.243333,-43.023667,12.090000,-1.579167) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Center for Marine Environmental Sciences MARUM |
spellingShingle |
Center for Marine Environmental Sciences MARUM Portilho-Ramos, Rodrigo Costa Chiessi, Cristiano Mazur Zhang, Yancheng Mulitza, Stefan Kucera, Michal Siccha, Michael Prange, Matthias Paul, André Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
topic_facet |
Center for Marine Environmental Sciences MARUM |
description |
The modern state of the Atlantic meridional overturning circulation promotes a northerly maximum of tropical rainfall associated with the Intertropical Convergence Zone (ITCZ). For continental regions, abrupt millennial-scale meridional shifts of this rainbelt are well documented, but the behavior of its oceanic counterpart is unclear due the lack of a robust proxy and high temporal resolution records. Here we show that the Atlantic ITCZ leaves a distinct signature in planktonic foraminifera assemblages. We applied this proxy to investigate the history of the Atlantic ITCZ for the last 30,000 years based on two high temporal resolution records from the western Atlantic Ocean. Our reconstruction indicates that the shallowest mixed layer associated with the Atlantic ITCZ unambiguously shifted meridionally in response to changes in the strength of the Atlantic meridional overturning with a southward displacement during Heinrich Stadials 2-1 and the Younger Dryas. We conclude that the Atlantic ITCZ was located at ca. 1°S (ca. 5° to the south of its modern annual mean position) during Heinrich Stadial 1. This supports a previous hypothesis, which postulates a southern hemisphere position of the oceanic ITCZ during climatic states with substantially reduced or absent cross-equatorial oceanic meridional heat transport. |
format |
Dataset |
author |
Portilho-Ramos, Rodrigo Costa Chiessi, Cristiano Mazur Zhang, Yancheng Mulitza, Stefan Kucera, Michal Siccha, Michael Prange, Matthias Paul, André |
author_facet |
Portilho-Ramos, Rodrigo Costa Chiessi, Cristiano Mazur Zhang, Yancheng Mulitza, Stefan Kucera, Michal Siccha, Michael Prange, Matthias Paul, André |
author_sort |
Portilho-Ramos, Rodrigo Costa |
title |
Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
title_short |
Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
title_full |
Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
title_fullStr |
Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
title_full_unstemmed |
Atlantic ITCZ planktonic foraminifera RN/Gg, MAT subsurface temperature, Ti/Ca and EDP-XRF calibrate scanning data |
title_sort |
atlantic itcz planktonic foraminifera rn/gg, mat subsurface temperature, ti/ca and edp-xrf calibrate scanning data |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.875299 https://doi.org/10.1594/PANGAEA.875299 |
op_coverage |
MEDIAN LATITUDE: 0.699028 * MEDIAN LONGITUDE: -46.060278 * SOUTH-BOUND LATITUDE: -1.579167 * WEST-BOUND LONGITUDE: -61.243333 * NORTH-BOUND LATITUDE: 12.090000 * EAST-BOUND LONGITUDE: -43.023667 * DATE/TIME START: 1996-04-19T00:00:00 * DATE/TIME END: 2012-02-24T02:00:00 |
long_lat |
ENVELOPE(-61.243333,-43.023667,12.090000,-1.579167) |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Supplement to: Portilho-Ramos, Rodrigo Costa; Chiessi, Cristiano Mazur; Zhang, Yancheng; Mulitza, Stefan; Kucera, Michal; Siccha, Michael; Prange, Matthias; Paul, André (2017): Coupling of equatorial Atlantic surface stratification to glacial shifts in the tropical rainbelt. Scientific Reports, 7(1), https://doi.org/10.1038/s41598-017-01629-z |
op_relation |
Zabel, Matthias (2013): XRF measurements on dry powder from sediment core GeoB16206-1. PANGAEA, https://doi.org/10.1594/PANGAEA.809006 Zhang, Yancheng; Chiessi, Cristiano Mazur; Mulitza, Stefan; Zabel, Matthias; Trindade, Ricardo F; Hollanda, Maria Helena B M; Dantas, Elton L; Govin, Aline; Tiedemann, Ralf; Wefer, Gerold (2015): Reconstruction of the provenance and distribution of terrigenous sediments off NE South America over the last 30ka. PANGAEA, https://doi.org/10.1594/PANGAEA.854054 https://doi.pangaea.de/10.1594/PANGAEA.875299 https://doi.org/10.1594/PANGAEA.875299 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.875299 https://doi.org/10.1038/s41598-017-01629-z https://doi.org/10.1594/PANGAEA.809006 https://doi.org/10.1594/PANGAEA.854054 |
_version_ |
1766169837562757120 |