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dc.contributor.authorXu, L.
dc.contributor.authorMyneni, R.B.
dc.contributor.authorChapin III, F.S.
dc.contributor.authorCallaghan, T.V.
dc.contributor.authorPinzon, J.E.
dc.contributor.authorTucker, Compton J.
dc.contributor.authorZhu, Z.
dc.contributor.authorBi, J.
dc.contributor.authorCiais, P.
dc.contributor.authorTømmervik, Hans
dc.contributor.authorEuskirchen, E.S.
dc.contributor.authorForbes, B. C.
dc.contributor.authorPiao, S.L.
dc.contributor.authorAnderson, B.T.
dc.contributor.authorGanguly, S.
dc.contributor.authorNemani, R.R.
dc.contributor.authorGoetz, S.J.
dc.contributor.authorBeck, P.S.A.
dc.contributor.authorBunn, A.G.
dc.contributor.authorCao, C.
dc.contributor.authorStroeve, J.C.
dc.date.accessioned2018-09-07T12:54:10Z
dc.date.available2018-09-07T12:54:10Z
dc.date.created2013-03-11T12:15:28Z
dc.date.issued2013
dc.identifier.citationNature Climate Change. 2013, 3 (6), 581-586.nb_NO
dc.identifier.issn1758-678X
dc.identifier.urihttp://hdl.handle.net/11250/2561523
dc.description.abstractGlobal temperature is increasing, especially over Northern lands (>50 N), owing to positive feedbacks. As this increase is most pronounced in winter, temperature seasonality (ST)—conventionally defined as the difference between summer and winter temperatures—is diminishing over time, a phenomenon that is analogous to its equatorward decline at an annual scale. The initiation, termination and performance of vegetation photosynthetic activity are tied to threshold temperatures. Trends in the timing of these thresholds andcumulative temperatures above them may alter vegetation productivity, or modify vegetation seasonality (SV), over time. The relationship between ST and SV is critically examined here with newly improved ground and satellite data sets. The observed diminishment of ST and SV is equivalent to 4 and 7 (5 and 6 ) latitudinal shift equatorward during the past 30 years in the Arctic (boreal) region. Analysis of simulations from 17 state-of-the-art climate models4 indicates an additional ST diminishment equivalent to a 20 equatorward shift could occur this century. How SV will change in response to such large projected ST declines and the impact this will have on ecosystem services5 are not well understood. Hence the need for continued monitoring6 of northern lands as their seasonal temperature profiles evolve to resemble those further south.nb_NO
dc.language.isoengnb_NO
dc.titleTemperature and vegetation seasonality diminishment over northern landsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.rights.holder© 2013 Macmillan Publishers Limited. All rights reservednb_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480nb_NO
dc.source.pagenumber581-586nb_NO
dc.source.volume3nb_NO
dc.source.journalNature Climate Changenb_NO
dc.source.issue6nb_NO
dc.identifier.doi10.1038/NCLIMATE1836
dc.identifier.cristin1018456
dc.relation.projectNorges forskningsråd: 216434nb_NO
cristin.unitcode7511,4,0,0
cristin.unitnameTromsø
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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