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dc.contributor.authorVikhamar-Schuler, Dagrun
dc.contributor.authorIsaksen, Ketil
dc.contributor.authorHaugen, Jan Erik
dc.contributor.authorTømmervik, Hans
dc.contributor.authorLuks, Bartlomiej
dc.contributor.authorSchuler, Thomas Vikhamar
dc.contributor.authorBjerke, Jarle W.
dc.coverage.spatialnorthern Norway, Sweden Funland, Svalbard, Jan Mayennb_NO
dc.date.accessioned2016-08-30T13:16:10Z
dc.date.accessioned2016-08-31T08:09:57Z
dc.date.available2016-08-30T13:16:10Z
dc.date.available2016-08-31T08:09:57Z
dc.date.issued2016
dc.identifier.citationJournal of Climate 2016 (29)nb_NO
dc.identifier.issn1520-0442
dc.identifier.urihttp://hdl.handle.net/11250/2402999
dc.description.abstractIn recent years extreme winter warming events have been reported in arctic areas. These events are characterized as extraordinarily warm weather episodes, occasionally combined with intense rainfall, causing ecological disturbance and challenges for arctic societies and infrastructure. Ground-ice formation due to winter rain or melting prevents ungulates from grazing, leads to vegetation browning, and impacts soil temperatures. The authors analyze changes in frequency and intensity of winter warming events in the Nordic arctic region—northern Norway, Sweden, and Finland, including the arctic islands Svalbard and JanMayen. This study identifies events in the longest available records of daily temperature and precipitation, as well as in future climate scenarios, and performs analyses of long-term trends for climate indices aimed to capture these individual events. Results show high frequencies of warm weather events during the 1920s–30s and the past 15 years (2000–14), causing weak positive trends over the past 90 years (1924–2014). In contrast, strong positive trends in occurrence and intensity for all climate indices are found for the past 50 years with, for example, increased rates for number of melt days of up to 9.2 days decade21 for the arctic islands and 3–7 days decade21 for the arctic mainland. Regional projections for the twenty-first century indicate a significant enhancement of the frequency and intensity of winter warming events. For northern Scandinavia, the simulations indicate a doubling in the number of warming events, compared to 1985–2014, while the projected frequencies for the arctic islands are up to 3 times higher.nb_NO
dc.language.isoengnb_NO
dc.subjectNordic arctic region, northern Norway, Sweden, Finland, Svalbard, Jan Mayennb_NO
dc.titleChanges in winter warming events in the Nordic Arctic Regionnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.date.updated2016-08-30T13:16:10Z
dc.source.pagenumber6223-6244nb_NO
dc.source.volume29nb_NO
dc.source.journalJournal of Climatenb_NO
dc.identifier.doi10.1175/JCLI-D-15-0763.1,
dc.identifier.cristin1373407
dc.relation.projectNorges forskningsråd 216434nb_NO


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