000162803 001__ 162803
000162803 005__ 20251017144637.0
000162803 0247_ $$2doi$$a10.1002/joc.70045
000162803 0248_ $$2sideral$$a145353
000162803 037__ $$aART-2025-145353
000162803 041__ $$aeng
000162803 100__ $$aHalifa-Marín, A.
000162803 245__ $$aBeyond the NAO: The East Atlantic Pattern's Role in Early 20th‐Century Meteorological Droughts in Western Europe
000162803 260__ $$c2025
000162803 5060_ $$aAccess copy available to the general public$$fUnrestricted
000162803 5203_ $$aThe North Atlantic Oscillation (NAO) and the East Atlantic (EA) pattern are the primary winter modes of large-scale atmospheric variability in the North Atlantic. While EA is generally considered secondary to NAO, recent studies have reported that during the early 20th century, EA was the leading mode of variability instead of NAO. This study builds on that finding to characterise North Atlantic winter atmospheric circulation during this period. The early 20th century was marked by an intensified Azores High coinciding with an extensive Icelandic Low (IL), which generated widespread negative SLP anomalies across the North Atlantic. This configuration elevated EA's role as a primary modulator of precipitation in Western Europe. Focusing on the Iberian Peninsula, we demonstrate that during this period, EA effectively captured precipitation variability both in the western sector—typically influenced by NAO—and in the eastern sector, where neither NAO nor EA generally exerts significant control. Our findings enhance the understanding of precipitation variability in this region and provide insights into the non-stationary relationship between EA and NAO. Finally, this study suggests the importance of internal climate variability in shaping those North Atlantic winter dynamics. Intense volcanic activity in the late 19th century likely contributed to ocean cooling and NAO intensifying. However, the mechanisms behind the exceptionally strong IL (e.g., EA−) remain unclear. Despite remaining uncertainties, advancing knowledge in this area will be crucial for improving medium-range weather prediction systems and long-term climate projections.
000162803 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/FPU18-00824$$9nfo:eu-repo/grantAgreement/ES/MICINN/RYC2019-027115-I$$9info:eu-repo/grantAgreement/ES/MICIU/PID2020-115693RB-I00$$9info:eu-repo/grantAgreement/ES/MICIU/PID2021-123193OB-I00
000162803 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000162803 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000162803 700__ $$aTorres-Vázquez, M. A.
000162803 700__ $$aTrigo, R.
000162803 700__ $$0(orcid)0000-0003-2892-518X$$aVicente-Serrano, S. M.
000162803 700__ $$aTurco, M.
000162803 700__ $$aJiménez-Guerrero, P.
000162803 700__ $$aMontávez, J. P.
000162803 773__ $$g(2025), e70045 [14 pp.]$$pInt. j. climatol.$$tInternational Journal of Climatology$$x0899-8418
000162803 8564_ $$s11442718$$uhttps://zaguan.unizar.es/record/162803/files/texto_completo.pdf$$yVersión publicada
000162803 8564_ $$s2604251$$uhttps://zaguan.unizar.es/record/162803/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000162803 909CO $$ooai:zaguan.unizar.es:162803$$particulos$$pdriver
000162803 951__ $$a2025-10-17-14:30:03
000162803 980__ $$aARTICLE