High-resolution SST records derived from planktonic foraminiferal Mg/Ca from the western equatorial Atlantic
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2021
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| author | Venancio, Igor Martins Shimizu, Marilia Harumi Santos, Thiago Pereira dos Lessa, Douglas O Dias, Bruna Borba Chiessi, Cristiano Mazur Mulitza, Stefan Kuhnert, Henning Tiedemann, Ralf Vahlenkamp, Maximilian Bickert, Torsten Belem, Andre L Sampaio, Gilvan Albuquerque, Ana Luiza Spadano Nobre, Carlos |
| author_facet | Venancio, Igor Martins Shimizu, Marilia Harumi Santos, Thiago Pereira dos Lessa, Douglas O Dias, Bruna Borba Chiessi, Cristiano Mazur Mulitza, Stefan Kuhnert, Henning Tiedemann, Ralf Vahlenkamp, Maximilian Bickert, Torsten Belem, Andre L Sampaio, Gilvan Albuquerque, Ana Luiza Spadano Nobre, Carlos |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Slowdowns of the Atlantic meridional overturning circulation during Heinrich stadials (HS) caused reductions in cross-equatorial heat transport, southward shifts of the Intertropical Convergence Zone and intensification of precipitation over eastern tropical South America. While these changes are well described, the associated spatial sea surface temperature (SST) patterns are still unclear. Here, we analyze proxy data to assess changes in ocean atmosphere interactions during HS over the western South Atlantic. Our SST proxy records show contrasting patterns between the tropical (warming) and the subtropical (no change) western South Atlantic during HS. We propose that the distinct SST behavior in the subtropics was associated with the cloud cover effect of the South Atlantic Convergence Zone over the upper ocean. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_931646 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | High-resolution SST records derived from planktonic foraminiferal Mg/Ca from the western equatorial Atlantic Venancio, Igor Martins Shimizu, Marilia Harumi Santos, Thiago Pereira dos Lessa, Douglas O Dias, Bruna Borba Chiessi, Cristiano Mazur Mulitza, Stefan Kuhnert, Henning Tiedemann, Ralf Vahlenkamp, Maximilian Bickert, Torsten Belem, Andre L Sampaio, Gilvan Albuquerque, Ana Luiza Spadano Nobre, Carlos Atlantic; Brazil; Foraminifera; Heinrich Stadials; ITCZ; Mg/Ca; South America Slowdowns of the Atlantic meridional overturning circulation during Heinrich stadials (HS) caused reductions in cross-equatorial heat transport, southward shifts of the Intertropical Convergence Zone and intensification of precipitation over eastern tropical South America. While these changes are well described, the associated spatial sea surface temperature (SST) patterns are still unclear. Here, we analyze proxy data to assess changes in ocean atmosphere interactions during HS over the western South Atlantic. Our SST proxy records show contrasting patterns between the tropical (warming) and the subtropical (no change) western South Atlantic during HS. We propose that the distinct SST behavior in the subtropics was associated with the cloud cover effect of the South Atlantic Convergence Zone over the upper ocean. |
| title | High-resolution SST records derived from planktonic foraminiferal Mg/Ca from the western equatorial Atlantic |
| topic | Atlantic; Brazil; Foraminifera; Heinrich Stadials; ITCZ; Mg/Ca; South America |
| url | https://doi.org/10.1594/PANGAEA.931646 |