Coupled European and Greenland last glacial dust activity driven by North Atlantic climate

Atmospheric dust is a major component of climate change. However, the relationship between glacial continental dust activity and abrupt centennial–millennial-scale climate changes of the North Atlantic is poorly known. Recent advances in high-precision radiocarbon dating of small gastropods in conti...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences
Main Authors: Újvári, Gábor, Stevens, Thomas, Molnár, Mihály, Demény, Attila, Lambert, Fabrice, Varga, György, Jull, A. J. Timothy, Páll-Gergely, Barna, Buylaert, Jan-Pieter, Kovács, János
Format: Text
Language:English
Published: National Academy of Sciences 2017
Subjects:
PNAS Plus
Greenland
North Atlantic
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5740632/
http://www.ncbi.nlm.nih.gov/pubmed/29180406
https://doi.org/10.1073/pnas.1712651114
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Summary:Atmospheric dust is a major component of climate change. However, the relationship between glacial continental dust activity and abrupt centennial–millennial-scale climate changes of the North Atlantic is poorly known. Recent advances in high-precision radiocarbon dating of small gastropods in continental loess deposits provide an opportunity to gain unprecedented insights into dust variations and its major drivers at centennial–millennial scales from a near-source dust archive. Here, we show that Late Quaternary North Atlantic temperature and dustiness in Greenland and Europe were largely synchronous and suggest that this coupling was driven via precipitation changes and large-scale atmospheric circulation.

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