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Khider, D.; Jackson, C. S.; Stott, L. D.. |
We investigate the relationship between tropical Pacific and Southern Ocean variability during the Holocene using the stable oxygen isotope and magnesium/calcium records of cooccurring planktonic and benthic foraminifera from a marine sediment core collected in the western equatorial Pacific. The planktonic record exhibits millennial-scale sea surface temperature (SST) oscillations over the Holocene of ~0.5°C while the benthic δ18Oc document ~0.10‰ millennial-scale changes of Upper Circumpolar Deep Water (UCDW), a water mass which outcrops in the Southern Ocean. Solar forcing as an explanation for millennial-scale SST variability requires (1) a large climate sensitivity and (2) a long 400 year delayed response, suggesting that if solar forcing is the cause... |
Tipo: Text |
Palavras-chave: Holocene; Millennial-scale variability; Mg; Ca thermometry; Uncertainty Quantification; Solar Forcing. |
Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00290/40166/39058.pdf |