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dc.contributor.authorTziperman, Eli
dc.contributor.authorYu, Lisan
dc.date.accessioned2010-11-23T19:48:21Z
dc.date.available2010-11-23T19:48:21Z
dc.date.issued2007-06-15
dc.identifier.citationJournal of Climate 20 (2007): 2760-2768en_US
dc.identifier.urihttp://hdl.handle.net/1912/4117
dc.descriptionAuthor Posting. © American Meteorological Society, 2007. 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 20 (2007): 2760-2768, doi:10.1175/JCLI4138a.1en_US
dc.description.abstractThe correlation between parameters characterizing observed westerly wind bursts (WWBs) in the equatorial Pacific and the large-scale SST is analyzed using singular value decomposition. The WWB parameters include the amplitude, location, scale, and probability of occurrence for a given SST distribution rather than the wind stress itself. This approach therefore allows for a nonlinear relationship between the SST and the wind signal of the WWBs. It is found that about half of the variance of the WWB parameters is explained by only two large-scale SST modes. The first mode represents a developed El Niño event, while the second mode represents the seasonal cycle. More specifically, the central longitude of WWBs, their longitudinal extent, and their probability seem to be determined to a significant degree by the ENSO-driven signal. The amplitude of the WWBs is found to be strongly influenced by the phase of the seasonal cycle. It is concluded that the WWBs, while partially stochastic, seem an inherent part of the large-scale deterministic ENSO dynamics. Implications for ENSO predictability and prediction are discussed.en_US
dc.description.sponsorshipEli Tziperman is supported by the U.S. National Science Foundation Climate Dynamics Program Grant ATM- 0351123 and by the McDonnell Foundation. Lisan Yu is supported by the NASA Ocean Vector Wind Science Team under JPL Contract 1216955 and NSF Climate Dynamics Grant ATM-0350266.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttp://dx.doi.org/10.1175/JCLI4138a.1
dc.subjectSea surface temperatureen_US
dc.subjectWind burstsen_US
dc.subjectTropicsen_US
dc.subjectPacific Oceanen_US
dc.titleQuantifying the dependence of westerly wind bursts on the large-scale tropical Pacific SSTen_US
dc.typeArticleen_US
dc.identifier.doi10.1175/JCLI4138a.1


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