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dc.contributor.authorXu, Xinping
dc.contributor.authorHe, Shengping
dc.contributor.authorZhou, Botao
dc.contributor.authorWang, Huijun
dc.contributor.authorOutten, Stephen
dc.date.accessioned2022-10-04T14:03:59Z
dc.date.available2022-10-04T14:03:59Z
dc.date.created2022-09-30T10:35:59Z
dc.date.issued2022
dc.identifier.issn0094-8276
dc.identifier.urihttps://hdl.handle.net/11250/3023671
dc.description.abstractBased on statistical analysis using observations and idealized model simulations, previous studies have revealed the potential response of early-winter atmospheric circulation and temperature anomalies to November Ural blocking (UB) anomalies. Using a large number of coupled simulations, this study found that the response is sensitive to the intensity of November mid-latitude westerly jet over Eurasia. Stronger-than-normal November UB without a significantly weakened westerly jet could not cause significant atmospheric response in early-winter. By contrast, stronger-than-normal November UB with a significantly weakened jet would be followed by a warmer Arctic-colder Eurasia (WACE) pattern in December. The significantly weakened westerly jet favors stronger upward propagation of planetary waves, which causes stronger weakening and longer persistence of the stratospheric polar vortex. This stratospheric response persists into December and propagates downward into the troposphere interfering with planetary waves (especially wavenumber-1). The lead-lag UB-WACE linkage modulated by mid-latitude jet may have implications for sub-seasonal predictability.en_US
dc.language.isoengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rightsNavngivelse-IkkeKommersiell-Ingen bearbeidelser 4.0 Internasjonal
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.no
dc.titleThe Role of Mid-latitude Westerly Jet in the Impacts of November Ural Blocking on Early-Winter Warmer Arctic-Colder Eurasia Patternen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2022 the authorsen_US
dc.source.articlenumbere2022GL099096en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1029/2022GL099096
dc.identifier.cristin2057077
dc.source.journalGeophysical Research Lettersen_US
dc.identifier.citationGeophysical Research Letters. 2022, 49 (16), e2022GL099096.en_US
dc.source.volume49en_US
dc.source.issue16en_US


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Navngivelse-IkkeKommersiell-Ingen bearbeidelser 4.0 Internasjonal
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