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Younger Dryas ice margin retreat triggered by ocean surface warming in central-eastern Baffin Bay

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Oksman, Mimmi
dc.contributor.author Weckström, Kaarina
dc.contributor.author Miettinen, Arto
dc.contributor.author Juggins, Stephen
dc.contributor.author Divine, Dmitry V.
dc.contributor.author Jackson, Rebecca
dc.contributor.author Telford, Richard
dc.contributor.author Korsgaard, Niels Jakup
dc.contributor.author Kucera, Michal
dc.date.accessioned 2018-01-22T14:01:08Z
dc.date.available 2018-01-22T14:01:08Z
dc.date.issued 2017-10-18
dc.identifier.citation Oksman, M., Weckström, K., Miettinen, A., Juggins, S., Divine, D. V., Jackson, R., . . . Kucera, M. (2017). Younger Dryas ice margin retreat triggered by ocean surface warming in central-eastern Baffin Bay. Nature Communications, 8(1), 1017. doi:10.1038/s41467-017-01155-6
dc.identifier.issn 2041-1723
dc.identifier.uri https://hdl.handle.net/20.500.11815/528
dc.description.abstract The transition from the last ice age to the present-day interglacial was interrupted by the Younger Dryas (YD) cold period. While many studies exist on this climate event, only few include high-resolution marine records that span the YD. In order to better understand the interactions between ocean, atmosphere and ice sheet stability during the YD, more high-resolution proxy records from the Arctic, located proximal to ice sheet outlet glaciers, are required. Here we present the first diatom-based high-resolution quantitative reconstruction of sea surface conditions from central-eastern Baffin Bay, covering the period 14.0–10.2 kyr BP. Our record reveals warmer sea surface conditions and strong interactions between the ocean and the West Greenland ice margin during the YD. These warmer conditions were caused by increased Atlantic-sourced water inflow combined with amplified seasonality. Our results emphasize the importance of the ocean for ice sheet stability under the current changing climate.
dc.description.sponsorship We would like thank the captain and all members of the cruise MSM09/2. We also thank O. Hyttinen, University of Helsinki, for her help with grain size distribution analysis. Funding from the Finnish Graduate School in Geology is kindly acknowledged as is the funding from the Academy of Finland (A.E.K. Ojala, QUAL-project 259343). We are grateful to F.M. Nick, H. Machguth, T. Luoto, and K. Pauli for insightful discussions.
dc.format.extent 1017
dc.language.iso en
dc.publisher Springer Nature
dc.relation.ispartofseries Nature Communications;8(1)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Palaeoceanography
dc.subject Palaeoclimate
dc.subject Haffræði
dc.subject Loftslagsfræði
dc.subject Ísöld
dc.title Younger Dryas ice margin retreat triggered by ocean surface warming in central-eastern Baffin Bay
dc.type info:eu-repo/semantics/article
dcterms.license This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
dc.description.version Peer Reviewed
dc.identifier.journal Nature Communications
dc.identifier.doi 10.1038/s41467-017-01155-6
dc.contributor.department Jarðvísindastofnun (HÍ)
dc.contributor.department Institute of Earth Sciences (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

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