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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Cited articles

An, S.-I. and Choi, J.: Mid-Holocene tropical Pacific climate state, annual cycle, and ENSO in PMIP2 and PMIP3, Clim. Dynam., 43, 1–14, https://doi.org/10.1007/s00382-013-1880-z, 2013.
Ashok, K., Behera, S. K., Rao, S. A., Weng, H., and Yamagata, T.: El Niño Modoki and its possible teleconnection, J. Geophys. Res., 112, C11007, https://doi.org/10.1029/2006JC003798, 2007.
Bellenger, H., Guilyardi, E., Leloup, J., Lengaigne, M., and Vialard, J.: ENSO representation in climate models: from CMIP3 to CMIP5, Clim. Dynam., 42, 1999–2018, https://doi.org/10.1007/s00382-013-1783-z, 2013.
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Bonham, S. G., Haywood, A. M., Lunt, D. J., Collins, M., and Salzmann, U.: El Niño-Southern Oscillation, Pliocene climate and equifinality, Philos. T. R. Soc. A, 367, 127–156, https://doi.org/10.1098/rsta.2008.0212, 2009.
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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.