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 CO 2 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.
| Original language | English |
|---|---|
| Article number | 2692 |
| Journal | Nature Communications |
| Volume | 4 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
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Palaeoclimate reconstructions reveal a strong link between El niño-southern oscillation and tropical pacific mean state. / Sadekov, Aleksey Yu; Ganeshram, Raja; Pichevin, Laetitia; Berdin, Rose; McClymont, Erin; Elderfield, Henry; Tudhope, Alexander W.
In: Nature Communications, Vol. 4, 2692, 2013.Research output: Contribution to journal › Article
TY - JOUR
T1 - Palaeoclimate reconstructions reveal a strong link between El niño-southern oscillation and tropical pacific mean state
AU - Sadekov, Aleksey Yu
AU - Ganeshram, Raja
AU - Pichevin, Laetitia
AU - Berdin, Rose
AU - McClymont, Erin
AU - Elderfield, Henry
AU - Tudhope, Alexander W.
PY - 2013
Y1 - 2013
N2 - 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 CO 2 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.
AB - 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 CO 2 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.
UR - http://www.scopus.com/inward/record.url?scp=84887297157&partnerID=8YFLogxK
U2 - 10.1038/ncomms3692
DO - 10.1038/ncomms3692
M3 - Article
VL - 4
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 2692
ER -