Stable oxygen isotope and Mg/Ca data of Globigerinoides ruber white, water stable oxygen isotope data, SST and MAT records of sediment core GeoB6211-2 ...

During Termination 1, millennial-scale weakening events of the Atlantic meridional overturning circulation (AMOC) supposedly produced major changes in sea surface temperatures (SSTs) of the western South Atlantic, and in mean air temperatures (MATs) over southeastern South America. It has been sugge...

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Bibliographic Details
Main Authors: Chiessi, Cristiano Mazur, Mulitza, Stefan, Mollenhauer, Gesine, Silva, Juliana Braga, Groeneveld, Jeroen, Prange, Matthias
Format: Dataset
Language:English
Published: PANGAEA 2015
Subjects:
DEPTH, sediment/rock
AGE
Globigerinoides ruber white, δ18O
Globigerinoides ruber white, Magnesium/Calcium ratio
Sea surface temperature
δ18O, water
Temperature, annual mean
Gravity corer Kiel type
calibrated
Isotope ratio mass spectrometry
ICP-OES, Inductively coupled plasma - optical emission spectrometry
Calculated from Mg/Ca ratios Anand et al., 2003
Ice volume corrected
Calculated from MBT'/CBT Peterse et al., 2012
M46/2
Meteor 1986
Center for Marine Environmental Sciences MARUM
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.847352
https://doi.pangaea.de/10.1594/PANGAEA.847352
Description
Summary:During Termination 1, millennial-scale weakening events of the Atlantic meridional overturning circulation (AMOC) supposedly produced major changes in sea surface temperatures (SSTs) of the western South Atlantic, and in mean air temperatures (MATs) over southeastern South America. It has been suggested, for instance, that the Brazil Current (BC) would strengthen (weaken) and the North Brazil Current (NBC) would weaken (strengthen) during slowdown (speed-up) events of the AMOC. This anti-phase pattern was claimed to be a necessary response to the decreased North Atlantic heat piracy during periods of weak AMOC. However, the thermal evolution of the western South Atlantic and the adjacent continent is so far largely unknown. Here we address this issue, presenting high-temporal-resolution SST and MAT records from the BC and southeastern South America, respectively. We identify a warming in the western South Atlantic during Heinrich Stadial 1 (HS1), which is followed first by a drop and then by increasing ... : Supplement to: Chiessi, Cristiano Mazur; Mulitza, Stefan; Mollenhauer, Gesine; Silva, Juliana Braga; Groeneveld, Jeroen; Prange, Matthias (2015): Thermal evolution of the western South Atlantic and the adjacent continent during Termination 1. Climate of the Past, 11(6), 915-929 ...

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