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dc.contributor.author Neukom, Raphael
dc.contributor.author Gergis, Joëlle
dc.contributor.author Karoly, David J.
dc.contributor.author Wanner, Heinz
dc.contributor.author Curran, Mark
dc.contributor.author Elbert, Julie
dc.contributor.author González Rouco, Fidel
dc.contributor.author Linsley, Braddock K.
dc.contributor.author Moy, Andrew D.
dc.contributor.author Mundo, Ignacio Alberto
dc.contributor.author Raible, Christoph C.
dc.contributor.author Steig, Eric J.
dc.contributor.author Van Ommen, Tas
dc.contributor.author Vance, Tessa
dc.contributor.author Villalba, Ricardo
dc.contributor.author Zinke, Jens
dc.contributor.author Frank, David
dc.date.available 2018-02-26T22:12:16Z
dc.date.issued 2014-03
dc.identifier.citation Neukom, Raphael; Gergis, Joëlle; Karoly, David J.; Wanner, Heinz; Curran, Mark; et al.; Inter-hemispheric temperature variability over the past millennium; Nature Publishing Group; Nature Climate Change; 4; 5; 3-2014; 362-367
dc.identifier.issn 1758-678X
dc.identifier.uri http://hdl.handle.net/11336/37215
dc.description.abstract The Earths climate system is driven by a complex interplay of internal chaotic dynamics and natural and anthropogenic external forcing. Recent instrumental data have shown a remarkable degree of asynchronicity between Northern Hemisphere and Southern Hemisphere temperature fluctuations, thereby questioning the relative importance of internal versus external drivers of past as well as future climate variability. However, large-scale temperature reconstructions for the past millennium have focused on the Northern Hemisphere, limiting empirical assessments of inter-hemispheric variability on multi-decadal to centennial timescales. Here, we introduce a new millennial ensemble reconstruction of annually resolved temperature variations for the Southern Hemisphere based on an unprecedented network of terrestrial and oceanic palaeoclimate proxy records. In conjunction with an independent Northern Hemisphere temperature reconstruction ensemble, this record reveals an extended cold period (1594-1677) in both hemispheres but no globally coherent warm phase during the pre-industrial (1000-1850) era. The current (post-1974) warm phase is the only period of the past millennium where both hemispheres are likely to have experienced contemporaneous warm extremes. Our analysis of inter-hemispheric temperature variability in an ensemble of climate model simulations for the past millennium suggests that models tend to overemphasize Northern Hemisphere-Southern Hemisphere synchronicity by underestimating the role of internal ocean-atmosphere dynamics, particularly in the ocean-dominated Southern Hemisphere. Our results imply that climate system predictability on decadal to century timescales may be lower than expected based on assessments of external climate forcing and Northern Hemisphere temperature variations alone.
dc.format application/pdf
dc.language.iso eng
dc.publisher Nature Publishing Group
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Inter-hemispheric climates
dc.subject tree rings
dc.subject paleoclimatology
dc.subject Little Ice Age
dc.subject.classification Meteorología y Ciencias Atmosféricas
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Inter-hemispheric temperature variability over the past millennium
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-12-29T14:15:23Z
dc.journal.volume 4
dc.journal.number 5
dc.journal.pagination 362-367
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Neukom, Raphael. University of Bern; Suiza. Universitat Zurich; Suiza. Swiss Federal Institute for Forest, Snow and Landscape Research; Suiza
dc.description.fil Fil: Gergis, Joëlle. University of Melbourne; Australia
dc.description.fil Fil: Karoly, David J.. University of Melbourne; Australia
dc.description.fil Fil: Wanner, Heinz. University of Bern; Suiza
dc.description.fil Fil: Curran, Mark. University of Tasmania; Australia
dc.description.fil Fil: Elbert, Julie. University of Bern; Suiza
dc.description.fil Fil: González Rouco, Fidel. Consejo Superior de Investigaciones Científicas; España. Universidad Complutense de Madrid; España
dc.description.fil Fil: Linsley, Braddock K.. Columbia University; Estados Unidos
dc.description.fil Fil: Moy, Andrew D.. University of Tasmania; Australia
dc.description.fil Fil: Mundo, Ignacio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Agrarias y Forestales. Laboratorio de Investigacion de Sistemas Ecologicos y Ambientales; Argentina
dc.description.fil Fil: Raible, Christoph C.. University of Bern; Suiza
dc.description.fil Fil: Steig, Eric J.. University of Washington; Estados Unidos
dc.description.fil Fil: Van Ommen, Tas. University of Tasmania; Australia
dc.description.fil Fil: Vance, Tessa. University of Tasmania; Australia
dc.description.fil Fil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil Fil: Zinke, Jens. University of Western Australia; Australia. Australian Institute of Marine Science; Australia
dc.description.fil Fil: Frank, David. University of Bern; Suiza. Swiss Federal Institute for Forest, Snow and Landscape Research; Suiza
dc.journal.title Nature Climate Change
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/nclimate2174
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/nclimate2174
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)