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dc.contributor.authorHoff, Ulrike
dc.contributor.authorRasmussen, Tine Lander
dc.contributor.authorStein, Ruediger
dc.contributor.authorEzat, Mohamed
dc.contributor.authorFahl, Kirsten
dc.date.accessioned2016-08-22T12:19:26Z
dc.date.available2016-08-22T12:19:26Z
dc.date.issued2016-07-26
dc.description.abstractIn the light of rapidly diminishing sea ice cover in the Arctic during the present atmospheric warming, it is imperative to study the distribution of sea ice in the past in relation to rapid climate change. Here we focus on glacial millennial-scale climatic events (Dansgaard/Oeschger events) using the sea ice proxy IP25 in combination with phytoplankton proxy data and quantification of diatom species in a record from the southeast Norwegian Sea. We demonstrate that expansion and retreat of sea ice varies consistently in pace with the rapid climate changes 90 kyr ago to present. Sea ice retreats abruptly at the start of warm interstadials, but spreads rapidly during cooling phases of the interstadials and becomes near perennial and perennial during cold stadials and Heinrich events, respectively. Low-salinity surface water and the sea ice edge spreads to the Greenland–Scotland Ridge, and during the largest Heinrich events, probably far into the Atlantic Ocean.en_US
dc.description.sponsorshipThis research was supported by UiT, The Arctic University of Norway, the Mohn Foundation to the ‘Paleo-CIRCUS’ project, and part of the Centre of Excellence: Arctic Gas hydrate, Environment and Climate (CAGE) funded by the Norwegian Research Council (grant no. 223259).en_US
dc.descriptionPublisher's version, source <a href=http://doi.org/10.1038/ncomms12247>http://doi.org/10.1038/ncomms12247</a>en_US
dc.identifier.citationNature Communications 7:12247 (2016)en_US
dc.identifier.cristinIDFRIDAID 1369330
dc.identifier.doi10.1038/ncomms12247
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/10037/9521
dc.identifier.urnURN:NBN:no-uit_munin_9080
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.rights.accessRightsopenAccess
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi, glasiologi: 465en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466en_US
dc.titleSea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to presenten_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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