Winter mean temperature variability in Turkey associated with the North Atlantic Oscillation

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dc.contributor.authorTürkeş M.
dc.contributor.authorErlat E.
dc.date.accessioned2019-10-26T22:56:40Z
dc.date.available2019-10-26T22:56:40Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractChanges and variability in seasonal average mean and monthly mean winter (DJF) air temperature series at 70 stations of Turkey and the circulation types at 500-hPa geopotential height level were investigated to explain atmospheric controls of temperature variations during the extreme (weak and strong) phases and normal (negative and positive) phases of the North Atlantic Oscillation (i.e., Ponta Delgada-Reykjavik and the Gibraltar-Reykjavik) indices. During the positive phases of the North Atlantic Oscillation indices (NAOIs), northeasterly circulation increased, and thus spatially coherent and significant cold signals dominate over the majority of Turkey. This pattern is closely linked to anomalously low 500-hPa heights over the region of the Icelandic Low, and anomalously high geopotential heights over the regions of the Azores High, the western Mediterranean basin and the Europe, in general including the Balkans and northwest Turkey. Contrarily, during the negative phases of the NAOIs, prevailing westerly winds that originate from the subtropical northeast Atlantic increase, and thus spatially coherent and significant warm signals over the Anatolian peninsula appear. This pattern is closely linked to the increased cyclonic activity and associated increased westerly and southwesterly circulation causing warm maritime air advection over the Mediterranean basin toward Turkey. © Springer-Verlag 2009.en_US
dc.identifier.doi10.1007/s00703-009-0046-3
dc.identifier.endpage225en_US
dc.identifier.issn0177-7971
dc.identifier.issn0177-7971en_US
dc.identifier.issue03.Apren_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage211en_US
dc.identifier.urihttps://doi.org/10.1007/s00703-009-0046-3
dc.identifier.urihttps://hdl.handle.net/11454/20451
dc.identifier.volume105en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofMeteorology and Atmospheric Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleWinter mean temperature variability in Turkey associated with the North Atlantic Oscillationen_US
dc.typeArticleen_US

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