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Earth System Dynamics An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/esdd-3-979-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esdd-3-979-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

  03 Sep 2012

03 Sep 2012

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This preprint was under review for the journal ESD. A revision for further review has not been submitted.

Toward a classification of the Central Pacific El Niño

M. Pascolini-Campbell1, D. Zanchettin1, O. Bothe1,2, C. Timmreck1, D. Matei1, J. H. Jungclaus1, and H.-F. Graf3 M. Pascolini-Campbell et al.
  • 1Max Planck Institute for Meteorology, Hamburg, Germany
  • 2University of Hamburg, KlimaCampus, Hamburg, Germany
  • 3University of Cambridge, Cambridge, UK

Abstract. We investigate the various methods currently available for distinguishing between the Central Pacific (CP) El Niño (or "El Niño Modoki") and the canonical El Niño by considering 10 different methods and 5 sea surface temperature (SST) datasets from 1880 to 2010. Years which are classified as CP El Niños with the greatest convergence between method and SST dataset are considered to provide a more robust identification of these events. The results identify 13 yr which are classified the most consistently as CP events: 1885/1886, 1914/1915, 1940/1941, 1958/1959, 1963/1964, 1968/1969, 1977/1978, 1986/1987, 1991/1992, 2002/2003, 2003/2004, 2004/2005 and 2009/2010. Our findings also indicate the persistence of CP events throughout the time period investigated, inciting the role of multidecadal natural climate variability in generating CP El Niños.

M. Pascolini-Campbell et al.

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Status: closed (peer review stopped)
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M. Pascolini-Campbell et al.

M. Pascolini-Campbell et al.

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