A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps
Dust events originating from the Saharan desert have far reaching environmental impacts but the causal mechanism of magnitude and occurrence of Saharan dust events (SDEs) during the pre-instrumental era requires further research, particularly as a potential analog for future climate. Using an ultra-...
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ftharvardunivdvn:doi:10.7910/DVN/7UHR1U 2023-05-15T16:38:37+02:00 A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps Mayewski, Paul Clifford, Heather clifford, heather https://doi.org/10.7910/DVN/7UHR1U unknown Harvard Dataverse https://doi.org/10.7910/DVN/7UHR1U Earth and Environmental Sciences Saharan dust LAICPMS Ice Core ftharvardunivdvn https://doi.org/10.7910/DVN/7UHR1U 2020-02-16T16:58:46Z Dust events originating from the Saharan desert have far reaching environmental impacts but the causal mechanism of magnitude and occurrence of Saharan dust events (SDEs) during the pre-instrumental era requires further research, particularly as a potential analog for future climate. Using an ultra-high resolution glacio-chemical record from the 2013 Colle Gnifetti (CG) ice core drilled in the Swiss-Italian Alps we reconstructed a 2000 year-long summer Saharan dust record. We analyzed both modern (1780-2006) and pre-modern Common Era (C.E.) major and trace element records to determine air mass source regions to the Colle Gnifetti glacier and assess similarities to modern and reconstructed climate trends in the Northern Hemisphere. This new pSDE (proxy SDE) reconstruction, produced using measurements from a novel, continuous ultra-high-resolution (120-µm) ice core analysis method (laser ablation-inductively coupled plasma-mass spectrometer or LA-ICP-MS) is comprised of 316,000 data points per element covering the period 1 to 1820 C.E. We found that the CG ice core captures an anomalous increase in Saharan dust transport during the onset of the Medieval Climate Anomaly (870-1000 C.E.) and records other prominent shorter events (C.E., 140-170, 370-450, 1320-1370, and 1910-2000), offering a framework for new insights into the implications of Saharan dust variability. Other/Unknown Material ice core Harvard Dataverse |
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Open Polar |
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Harvard Dataverse |
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Earth and Environmental Sciences Saharan dust LAICPMS Ice Core |
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Earth and Environmental Sciences Saharan dust LAICPMS Ice Core Mayewski, Paul Clifford, Heather A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
topic_facet |
Earth and Environmental Sciences Saharan dust LAICPMS Ice Core |
description |
Dust events originating from the Saharan desert have far reaching environmental impacts but the causal mechanism of magnitude and occurrence of Saharan dust events (SDEs) during the pre-instrumental era requires further research, particularly as a potential analog for future climate. Using an ultra-high resolution glacio-chemical record from the 2013 Colle Gnifetti (CG) ice core drilled in the Swiss-Italian Alps we reconstructed a 2000 year-long summer Saharan dust record. We analyzed both modern (1780-2006) and pre-modern Common Era (C.E.) major and trace element records to determine air mass source regions to the Colle Gnifetti glacier and assess similarities to modern and reconstructed climate trends in the Northern Hemisphere. This new pSDE (proxy SDE) reconstruction, produced using measurements from a novel, continuous ultra-high-resolution (120-µm) ice core analysis method (laser ablation-inductively coupled plasma-mass spectrometer or LA-ICP-MS) is comprised of 316,000 data points per element covering the period 1 to 1820 C.E. We found that the CG ice core captures an anomalous increase in Saharan dust transport during the onset of the Medieval Climate Anomaly (870-1000 C.E.) and records other prominent shorter events (C.E., 140-170, 370-450, 1320-1370, and 1910-2000), offering a framework for new insights into the implications of Saharan dust variability. |
author2 |
clifford, heather |
author |
Mayewski, Paul Clifford, Heather |
author_facet |
Mayewski, Paul Clifford, Heather |
author_sort |
Mayewski, Paul |
title |
A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
title_short |
A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
title_full |
A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
title_fullStr |
A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
title_full_unstemmed |
A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps |
title_sort |
2000 year saharan dust event proxy record from an ice core in the european alps |
publisher |
Harvard Dataverse |
url |
https://doi.org/10.7910/DVN/7UHR1U |
genre |
ice core |
genre_facet |
ice core |
op_relation |
https://doi.org/10.7910/DVN/7UHR1U |
op_doi |
https://doi.org/10.7910/DVN/7UHR1U |
_version_ |
1766028933870911488 |