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  • Sturevik-Storm, AnnaUppsala universitet,Luft-, vatten- och landskapslära (author)

(10)Be climate fingerprints during the Eemian in the NEEM ice core, Greenland.

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2014-09-30
  • Springer Science and Business Media LLC,2014

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:9627a002-6c0b-4b7b-9350-768f0e5800af
  • https://lup.lub.lu.se/record/4738793URI
  • https://doi.org/10.1038/srep06408DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-235323URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Several deep Greenland ice cores have been retrieved, however, capturing the Eemian period has been problematic due to stratigraphic disturbances in the ice. The new Greenland deep ice core from the NEEM site (77.45°N, 51.06°W, 2450 m.a.s.l) recovered a relatively complete Eemian record. Here we discuss the cosmogenic (10)Be isotope record from this core. The results show Eemian average (10)Be concentrations about 0.7 times lower than in the Holocene which suggests a warmer climate and approximately 65-90% higher precipitation in Northern Greenland compared to today. Effects of shorter solar variations on (10)Be concentration are smoothed out due to coarse time resolution, but occurrence of a solar maximum at 115.26-115.36 kyr BP is proposed. Relatively high (10)Be concentrations are found in the basal ice sections of the core which may originate from the glacial-interglacial transition and relate to a geomagnetic excursion about 200 kyr BP.

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  • Aldahan, AlaUppsala universitet,Luft-, vatten- och landskapslära(Swepub:uu)alaaldah (author)
  • Possnert, GöranUppsala universitet,Tandemlaboratoriet(Swepub:uu)gpo27116 (author)
  • Berggren, Ann-MarieUppsala universitet,Institutionen för geovetenskaper(Swepub:uu)anber430 (author)
  • Muscheler, RaimundLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science(Swepub:lu)geol-rmu (author)
  • Dahl-Jensen, Dorthe (author)
  • Vinther, Bo M (author)
  • Usoskin, Ilya (author)
  • Uppsala universitetLuft-, vatten- och landskapslära (creator_code:org_t)

Related titles

  • In:Scientific Reports: Springer Science and Business Media LLC42045-2322

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