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  • Turney, Chris S MUniversity of New South Wales (author)

Rapid global ocean-atmosphere response to Southern Ocean freshening during the last glacial

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-09-12
  • Springer Science and Business Media LLC,2017

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:f1d984ad-438d-42bf-a20f-d86cf1f02efc
  • https://lup.lub.lu.se/record/f1d984ad-438d-42bf-a20f-d86cf1f02efcURI
  • https://doi.org/10.1038/s41467-017-00577-6DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-151515URI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

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

Notes

  • Contrasting Greenland and Antarctic temperatures during the last glacial period (115,000 to 11,650 years ago) are thought to have been driven by imbalances in the rates of formation of North Atlantic and Antarctic Deep Water (the 'bipolar seesaw'). Here we exploit a bidecadally resolved 14C data set obtained from New Zealand kauri (Agathis australis) to undertake high-precision alignment of key climate data sets spanning iceberg-rafted debris event Heinrich 3 and Greenland Interstadial (GI) 5.1 in the North Atlantic (~30,400 to 28,400 years ago). We observe no divergence between the kauri and Atlantic marine sediment 14C data sets, implying limited changes in deep water formation. However, a Southern Ocean (Atlantic-sector) iceberg rafted debris event appears to have occurred synchronously with GI-5.1 warming and decreased precipitation over the western equatorial Pacific and Atlantic. An ensemble of transient meltwater simulations shows that Antarctic-sourced salinity anomalies can generate climate changes that are propagated globally via an atmospheric Rossby wave train.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Jones, Richard T.University of Exeter (author)
  • Phipps, Steven J.University of Tasmania,University of New South Wales (author)
  • Thomas, Zoë A.University of New South Wales (author)
  • Hogg, AlanUniversity of Waikato (author)
  • Kershaw, A. PeterMonash University (author)
  • Fogwill, Christopher J.University of New South Wales (author)
  • Palmer, JonathanUniversity of New South Wales (author)
  • Bronk Ramsey, ChristopherUniversity of Oxford (author)
  • Adolphi, FlorianLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science,University of Bern(Swepub:lu)geol-foa (author)
  • Muscheler, RaimundLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science(Swepub:lu)geol-rmu (author)
  • Hughen, Konrad A.Woods Hole Oceanographic Institution (author)
  • Staff, Richard A.Scottish Universities Environmental Research Centre,University of Oxford (author)
  • Grosvenor, MarkUniversity of Exeter (author)
  • Golledge, Nicholas R.Te Herenga Waka / Victoria University of Wellington,GNS Science (author)
  • Rasmussen, Sune OlanderUniversity of Copenhagen (author)
  • Hutchinson, David K.Stockholms universitet,Stockholm University,Institutionen för geologiska vetenskaper(Swepub:su)dhutc (author)
  • Haberle, SimonAustralian National University (author)
  • Lorrey, AndrewNational Institute of Water and Atmospheric Research, New Zealand (author)
  • Boswijk, GretelUniversity of Auckland (author)
  • Cooper, AlanUniversity of Adelaide (author)
  • University of New South WalesUniversity of Exeter (creator_code:org_t)

Related titles

  • In:Nature Communications: Springer Science and Business Media LLC8:12041-1723

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