Articles | Volume 11, issue 3
Clim. Past, 11, 605–618, 2015
https://doi.org/10.5194/cp-11-605-2015
Clim. Past, 11, 605–618, 2015
https://doi.org/10.5194/cp-11-605-2015

Research article 27 Mar 2015

Research article | 27 Mar 2015

Interannual climate variability seen in the Pliocene Model Intercomparison Project

C. M. Brierley

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (12 Feb 2015)  Author's response    Manuscript
ED: Publish as is (23 Feb 2015) by Alan Haywood
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Short summary
Previously, model ensembles have shown little consensus in the response of the El Niño–Southern Oscillation (ENSO) to imposed forcings – either for the past or future. The recent coordinated experiment on the warm Pliocene (~3 million years ago) shows surprising agreement that there was a robustly weaker ENSO with a shift to lower frequencies. Suggested physical mechanisms cannot explain this coherent signal, and it warrants further investigation.