Sadekov, Aleksey and Ganeshram, Raja and Pichevin, Laetitia and Berdin, Rose and McClymont, Erin and Elderfield, Henry and Tudhope, Alexander W. (2013) Palaeoclimate reconstructions reveal a strong link between El Nino-Southern Oscillation and Tropical Pacific mean state. Nature Communications, 4 (2692). ISSN 2041-1723 DOI https://doi.org/10.1038/ncomms3692
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Abstract
The El Niño-Southern Oscillation (ENSO) is one of the most important components of the global climate system, but its potential response to an anthropogenic increase in atmospheric CO2 remains largely unknown. One of the major limitations in ENSO prediction is our poor understanding of the relationship between ENSO variability and long-term changes in Tropical Pacific oceanography. Here we investigate this relationship using palaeorecords derived from the geochemistry of planktonic foraminifera. Our results indicate a strong negative correlation between ENSO variability and zonal gradient of sea-surface temperatures across the Tropical Pacific during the last 22 ky. This strong correlation implies a mechanistic link that tightly couples zonal sea-surface temperature gradient and ENSO variability during large climate changes and provides a unique insight into potential ENSO evolution in the future by suggesting enhanced ENSO variability under a global warming scenario.
Item Type: | Article |
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Uncontrolled Keywords: | 2013AREP; IA66; |
Subjects: | 01 - Climate Change and Earth-Ocean Atmosphere Systems |
Divisions: | 01 - Climate Change and Earth-Ocean Atmosphere Systems |
Journal or Publication Title: | Nature Communications |
Volume: | 4 |
Identification Number: | https://doi.org/10.1038/ncomms3692 |
Depositing User: | Sarah Humbert |
Date Deposited: | 24 Nov 2013 02:52 |
Last Modified: | 16 Dec 2013 12:54 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/2926 |
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