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Sökning: onr:"swepub:oai:gup.ub.gu.se/226604" > Two distinct influe...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003050naa a2200433 4500
001oai:gup.ub.gu.se/226604
003SwePub
008240528s2015 | |||||||||||000 ||eng|
024a https://gup.ub.gu.se/publication/2266042 URI
024a https://doi.org/10.1038/ngeo25172 DOI
040 a (SwePub)gu
041 a eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Kug, J. S.4 aut
2451 0a Two distinct influences of Arctic warming on cold winters over North America and East Asia
264 c 2015-08-31
264 1b Springer Science and Business Media LLC,c 2015
520 a Arctic warming has sparked a growing interest because of its possible impacts on mid-latitude climate(1-5). A number of unusually harsh cold winters have occurred in many parts of East Asia and North America in the past few years(2,6,7), and observational and modelling studies have suggested that atmospheric variability linked to Arctic warming might have played a central role(1,3,4,8-11). Here we identify two distinct influences of Arctic warming which may lead to cold winters over East Asia or North America, based on observational analyses and extensive climate model results. We find that severe winters across East Asia are associated with anomalous warmth in the Barents-Kara Sea region, whereas severe winters over North America are related to anomalous warmth in the East Siberian-Chukchi Sea region. Each regional warming over the Arctic Ocean is accompanied by the local development of an anomalous anticyclone and the downstream development of a mid-latitude trough. The resulting northerly flow of cold air provides favourable conditions for severe winters in East Asia or North America. These links between Arctic and mid-latitude weather are also robustly found in idealized climate model experiments and CMIP5 multi-model simulations. We suggest that our results may help improve seasonal prediction of winter weather and extreme events in these regions.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng
653 a sea-ice loss
653 a midlatitude weather
653 a amplification
653 a reanalysis
653 a blocking
653 a link
653 a Geology
700a Jeong, J. H.4 aut
700a Jang, Y. S.4 aut
700a Kim, B. M.4 aut
700a Folland, Chris K.u Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences4 aut
700a Min, S. K.4 aut
700a Son, S. W.4 aut
710a Göteborgs universitetb Institutionen för geovetenskaper4 org
773t Nature Geoscienced : Springer Science and Business Media LLCg 8:10, s. 759-762q 8:10<759-762x 1752-0894x 1752-0908
8564 8u https://gup.ub.gu.se/publication/226604
8564 8u https://doi.org/10.1038/ngeo2517

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