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dc.contributor.author Dewitte, Boris
dc.contributor.author Vazquez-Cuervo, J.
dc.contributor.author Goubanova, Katerina
dc.contributor.author Illig, Serena
dc.contributor.author Takahashi, Ken
dc.contributor.author Cambon, G.
dc.contributor.author Purca, S.
dc.contributor.author Correa, D.
dc.contributor.author Gutierrez, D.
dc.contributor.author Sifeddine, A.
dc.contributor.author Ortlie, L.
dc.date.accessioned 2018-09-21T10:28:53Z
dc.date.available 2018-09-21T10:28:53Z
dc.date.issued 2012-11
dc.identifier.govdoc index-oti2018 (NB)
dc.identifier.issn 09670645
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/3022
dc.description En: Deep Sea Research Part II: Topical Studies in Oceanography, v. 77–80, (November 2012), p. 143-156.
dc.description.abstract "The tropical Pacific variability has experienced changes in its characteristics over the last decades. In particular, there is some evidence of an increased occurrence of El Niño events in the central Pacific (a.k.a. ‘Central Pacific El Niño’ (CP El Niño) or ‘El Niño Modoki’), in contrast with the cold tongue or Eastern Pacific (EP) El Niño which develops in the eastern Pacific. Here we show that the different flavours of El Niño imply a contrasted Equatorial Kelvin Wave (EKW) characteristic and that their rectification on the mean upwelling condition off Peru through oceanic teleconnection is changed when the CP El Niño frequency of occurrence increases. The Simple Ocean Data Assimilation (SODA) reanalysis product is first used to document the seasonal evolution of the EKW during CP and EP El Niño. It is shown that the strong positive asymmetry of ENSO (El Niño Southern Oscillation) is mostly reflected into the EKW activity of the EP El Niño whereas during CP El Niño, the EKW is negatively skewed in the eastern Pacific. Along with slightly cooler conditions off Peru (shallow thermocline) during CP El Niño, this is favourable for the accumulation of cooler SST anomalies along the coast by the remotely forced coastal Kelvin wave. Such a process is observed in a high-resolution regional model of the Humboldt Current system using the SODA outputs as boundary conditions. In particular the model simulates a cooling trend of the SST off Peru although the wind stress forcing has no trend. The model is further used to document the vertical structure along the coast during the two types of El Niño. It is suggested that the increased occurrence of the CP El Niño may also lead to a reduction of mesoscale activity off Peru." es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Deep Sea Research Part II: Topical Studies in Oceanography es_ES
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0967064512000598 es_ES
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri http://creativecommons.org/licences/by-nc-nd/2.5/pe/ es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Corriente El Niño es_ES
dc.subject Afloramiento (Oceanografía)--Océano Pacífico es_ES
dc.subject Oscilación del Sur es_ES
dc.subject Interacción océano-atmósfera es_ES
dc.subject Circulación oceánica--Modelos matemáticos es_ES
dc.subject Costas--Perú es_ES
dc.subject Cambio climático--Perú--Pronósticos es_ES
dc.title Change in El Niño flavours over 1958-2008: Implications for the long-term trend of the upwelling off Peru es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Climatología es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Oceanografía es_ES
dc.subject.ocde Océano Pacífico es_ES
dc.subject.ocde Zonas costeras es_ES
dc.identifier.journal Deep Sea Research Part II: Tropical Studies in Oceanography es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1016/j.dsr2.2012.04.011 es_ES

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