Monthly Tahiti coral Sr/Ca and oxygen isotope data from IODP Hole 310-M0024A

The early last glacial termination was characterized by intense North Atlantic cooling and weak overturning circulation. This interval between ~18,000 and 14,600 years ago, known as Heinrich Stadial 1, was accompanied by a disruption of global climate and has been suggested as a key factor for the t...

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Bibliographic Details
Main Authors: Felis, Thomas, Merkel, Ute, Asami, Ryuji, Deschamps, Pierre, Hathorne, Ed C, Kölling, Martin, Bard, Edouard, Cabioch, Guy, Durand, Nicolas, Prange, Matthias, Schulz, Michael, Cahyarini, Sri Yudawati, Pfeiffer, Miriam
Format: Dataset
Language:English
Published: PANGAEA 2012
Subjects:
310-M0024A
Calculated
see reference(s)
DP Hunter
DRILL
Drilling/drill rig
Exp310
ICP-OES
Perkin-Elmer
Optima 3300R
Integrated Ocean Drilling Program / International Ocean Discovery Program
Internal coral chronology
IODP
Mass spectrometer Finnigan MAT 251
Porites sp.
Strontium/Calcium ratio
δ18O
Sample code/label
TAH-02A-5F
Tahiti
offshore Tiarei
Tahiti Sea Level
Pacific
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.786743
https://doi.org/10.1594/PANGAEA.786743
Description
Summary:The early last glacial termination was characterized by intense North Atlantic cooling and weak overturning circulation. This interval between ~18,000 and 14,600 years ago, known as Heinrich Stadial 1, was accompanied by a disruption of global climate and has been suggested as a key factor for the termination. However, the response of interannual climate variability in the tropical Pacific (El Niño-Southern Oscillation) to Heinrich Stadial 1 is poorly understood. Here we use Sr/Ca in a fossil Tahiti coral to reconstruct tropical South Pacific sea surface temperature around 15,000 years ago at monthly resolution. Unlike today, interannual South Pacific sea surface temperature variability at typical El Niño-Southern Oscillation periods was pronounced at Tahiti. Our results indicate that the El Niño-Southern Oscillation was active during Heinrich Stadial 1, consistent with climate model simulations of enhanced El Niño-Southern Oscillation variability at that time. Furthermore, a greater El Niño-Southern Oscillation influence in the South Pacific during Heinrich Stadial 1 is suggested, resulting from a southward expansion or shift of El Niño-Southern Oscillation sea surface temperature anomalies.

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