Future Arctic sea ice loss reduces severity of cold air outbreaks in midlatitudes

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dc.contributor.authorAyarzagüena Porras, Blanca
dc.contributor.authorScreen, James A.
dc.date.accessioned2024-01-17T08:21:50Z
dc.date.available2024-01-17T08:21:50Z
dc.date.issued2016-03-18
dc.description.abstractThe effects of Arctic sea ice loss on cold air outbreaks (CAOs) in midlatitudes remain unclear. Previous studies have defined CAOs relative to the present‐day climate, but changes in CAOs, defined in such a way, may reflect changes in mean climate and not in weather variability, and society is more sensitive to the latter. Here we revisit this topic but applying changing temperature thresholds relating to climate conditions of the time. CAOs do not change in frequency or duration in response to projected sea ice loss. However, they become less severe, mainly due to advection of warmed polar air, since the dynamics associated with the occurrence of CAOs are largely not affected. CAOs weaken even in midlatitude regions where the winter mean temperature decreases in response to Arctic sea ice loss. These results are robustly simulated by two atmospheric models prescribed with differing future sea ice states and in transient runs where external forcings are included.
dc.description.departmentDepto. de Física de la Tierra y Astrofísica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipNatural Environment Research Council (NERC, UK)
dc.description.statuspub
dc.identifier.citationAyarzagüena, B., and J. A. Screen (2016), Future Arctic sea ice loss reduces severity of cold air outbreaks in midlatitudes, Geophys. Res. Lett., 43, 2801–2809, doi:10.1002/2016GL068092.
dc.identifier.doi10.1002/2016gl068092
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.officialurlhttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL068092
dc.identifier.urihttps://hdl.handle.net/20.500.14352/93508
dc.issue.number6
dc.journal.titleGeophysical Research Letters
dc.language.isoeng
dc.page.final2809
dc.page.initial2801
dc.publisherAmerican Geophysical Union
dc.relation.projectIDinfo:eu-repo/grantAgreement/NERC/NE/M006123/1/UK/EuroClim
dc.relation.projectIDinfo:eu-repo/grantAgreement/NERC/NE/J019585/1/UK/EuroClim
dc.rightsAttribution 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.cdu551.51
dc.subject.keywordArctic Sea Ice Loss
dc.subject.keywordClimate change
dc.subject.keywordMidlatitude cold air outbreaks
dc.subject.ucmFísica atmosférica
dc.subject.unesco2501.06 Dinámica Atmosférica
dc.titleFuture Arctic sea ice loss reduces severity of cold air outbreaks in midlatitudes
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number43
dspace.entity.typePublication
relation.isAuthorOfPublicationafac4741-04ec-4805-9476-53451704e8de
relation.isAuthorOfPublication.latestForDiscoveryafac4741-04ec-4805-9476-53451704e8de
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