Dust and sea salt variability in central East Antarctica (Dome C) over the last 45 kyrs and its implications for southern high-latitude climate

Röthlisberger, Regine; Mulvaney, Robert; Wolff, Eric W.; Hutterli, Manuel A.; Bigler, Matthias; Sommer, Stefan; Jouzel, Jean (2002). Dust and sea salt variability in central East Antarctica (Dome C) over the last 45 kyrs and its implications for southern high-latitude climate. Geophysical Research Letters, 29(20), pp. 24-31. American Geophysical Union 10.1029/2002GL015186

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A detailed record of non-sea-salt calcium, a proxy for dust, and sea-salt sodium, a proxy for sea salt, covering the last 45 kyr is presented. It shows that in the first part of the transition from the last glacial period to the Holocene (18–15 kyr BP), the changes in dust flux mainly reflect changes at the dust source, namely vegetation cover and local climate. The changes in the later part of the transition (12–11 kyr BP) are similar in extent to the changes seen in sea salt and most likely reflect a reorganization of the atmospheric circulation. During the last glacial period, considerable variation of dust but not of sea salt is observed, pointing to climatic changes in Patagonia, the main dust source for Dome C. A comparison of the glacial records from Dome C and Taylor Dome suggests that similar influences controlled aerosol input at both sites during this period.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute
08 Faculty of Science > Physics Institute > Climate and Environmental Physics

UniBE Contributor:

Hutterli, Manuel and Bigler, Matthias

Subjects:

500 Science > 530 Physics

ISSN:

0094-8276

Publisher:

American Geophysical Union

Language:

English

Submitter:

BORIS Import 2

Date Deposited:

06 Sep 2021 11:33

Last Modified:

05 Dec 2022 15:52

Publisher DOI:

10.1029/2002GL015186

Related URLs:

Additional Information:

Correction published 6 March 2003. See DOI https://doi.org/10.1029/2003GL016936

BORIS DOI:

10.48350/158444

URI:

https://boris.unibe.ch/id/eprint/158444

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