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dc.contributor.authorTaschetto, Andrea S.  Concept link
dc.contributor.authorSen Gupta, Alexander  Concept link
dc.contributor.authorJourdain, Nicolas C.  Concept link
dc.contributor.authorSantoso, Agus  Concept link
dc.contributor.authorUmmenhofer, Caroline C.  Concept link
dc.contributor.authorEngland, Matthew H.  Concept link
dc.date.accessioned2014-05-13T18:38:00Z
dc.date.available2014-10-22T08:57:25Z
dc.date.issued2014-04-15
dc.identifier.citationJournal of Climate 27 (2014): 2861–2885en_US
dc.identifier.urihttps://hdl.handle.net/1912/6625
dc.descriptionAuthor Posting. © American Meteorological Society, 2014. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 27 (2014): 2861–2885, doi:10.1175/JCLI-D-13-00437.1.en_US
dc.description.abstractThe representation of the El Niño–Southern Oscillation (ENSO) under historical forcing and future projections is analyzed in 34 models from the Coupled Model Intercomparison Project phase 5 (CMIP5). Most models realistically simulate the observed intensity and location of maximum sea surface temperature (SST) anomalies during ENSO events. However, there exist systematic biases in the westward extent of ENSO-related SST anomalies, driven by unrealistic westward displacement and enhancement of the equatorial wind stress in the western Pacific. Almost all CMIP5 models capture the observed asymmetry in magnitude between the warm and cold events (i.e., El Niños are stronger than La Niñas) and between the two types of El Niños: that is, cold tongue (CT) El Niños are stronger than warm pool (WP) El Niños. However, most models fail to reproduce the asymmetry between the two types of La Niñas, with CT stronger than WP events, which is opposite to observations. Most models capture the observed peak in ENSO amplitude around December; however, the seasonal evolution of ENSO has a large range of behavior across the models. The CMIP5 models generally reproduce the duration of CT El Niños but have biases in the evolution of the other types of events. The evolution of WP El Niños suggests that the decay of this event occurs through heat content discharge in the models rather than the advection of SST via anomalous zonal currents, as seems to occur in observations. No consistent changes are seen across the models in the location and magnitude of maximum SST anomalies, frequency, or temporal evolution of these events in a warmer world.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttps://doi.org/10.1175/JCLI-D-13-00437.1
dc.subjectAtmosphere-ocean interactionen_US
dc.subjectClimate changeen_US
dc.subjectClimate variabilityen_US
dc.subjectENSOen_US
dc.subjectClimate modelsen_US
dc.subjectModel evaluation/performanceen_US
dc.titleCold tongue and warm pool ENSO events in CMIP5 : mean state and future projectionsen_US
dc.typeArticleen_US
dc.description.embargo2014-10-15en_US
dc.identifier.doi10.1175/JCLI-D-13-00437.1


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