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Coupled European and Greenland last glacial dust activity driven by North Atlantic climate
Hungarian Academy of Sciences, Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Budapest; Technical University of Denmark, Center for Nuclear Technologies, Roskilde.ORCID iD: 0000-0002-2816-6155
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.ORCID iD: 0000-0002-6662-6650
Hungarian Academy of Sciences, Institute for Nuclear Research, Isotope Climatology and Environmental Research Centre, Debrecen.
Hungarian Academy of Sciences, Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Budapest.
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2017 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 114, no 50, p. E10632-E10638Article in journal (Refereed) Published
Abstract [en]

Centennial-scale mineral dust peaks in last glacial Greenland ice cores match the timing of lowest Greenland temperatures, yet little is known of equivalent changes in dust-emitting regions, limiting our understanding of dust−climate interaction. Here, we present the most detailed and precise age model for European loess dust deposits to date, based on 125 accelerator mass spectrometry 14C ages from Dunaszekcső, Hungary. The record shows that variations in glacial dust deposition variability on centennial–millennial timescales in east central Europe and Greenland were synchronous within uncertainty. We suggest that precipitation and atmospheric circulation changes were likely the major influences on European glacial dust activity and propose that European dust emissions were modulated by dominant phases of the North Atlantic Oscillation, which had a major influence on vegetation and local climate of European dust source regions.

Place, publisher, year, edition, pages
2017. Vol. 114, no 50, p. E10632-E10638
National Category
Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:uu:diva-337560DOI: 10.1073/pnas.1712651114ISI: 000417806200007PubMedID: 29180406OAI: oai:DiVA.org:uu-337560DiVA, id: diva2:1170043
Funder
European Social Fund (ESF), EFOP-3.6.1-16-2016-00004EU, European Research Council
Available from: 2018-01-02 Created: 2018-01-02 Last updated: 2018-02-23Bibliographically approved

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Újvári, GáborStevens, ThomasJull, A. J. TimothyBuylaert, Jan-PieterKovács, János
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