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South Atlantic Island Record Reveals a South Atlantic Response to the 8.2 Kyr Event : Volume 4, Issue 1 (29/02/2008)

By Ljung, K.

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Book Id: WPLBN0004006104
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: South Atlantic Island Record Reveals a South Atlantic Response to the 8.2 Kyr Event : Volume 4, Issue 1 (29/02/2008)  
Author: Ljung, K.
Volume: Vol. 4, Issue 1
Language: English
Subject: Science, Climate, Past
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Björck, S., Ljung, K., Renssen, H., & Hammarlund, D. (2008). South Atlantic Island Record Reveals a South Atlantic Response to the 8.2 Kyr Event : Volume 4, Issue 1 (29/02/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: Geobiosphere Science Centre, Department of Geology, Quaternary Sciences, Lund University, Sölvegatan 12, 223 62 Lund, Sweden. One of the most distinct climate fluctuations during the Holocene is the short and rapid event centred around 8200 years ago, the 8.2 kyr event, which was most likely triggered by glacial melt-water forcing from the receding Laurentide ice-sheet. Evidence for this cooling has primarily been reported from sites around the North Atlantic, but an increasing number of observations imply a more wide-spread occurrence. Palaeoclimate archives from the Southern Hemisphere have hitherto failed to uncover a distinct climatic anomaly associated with the 8.2 kyr event. Here we present a lake sediment record from Nightingale Island in the central South Atlantic showing enhanced precipitation between 8275 and 8025 cal. yrs BP, most likely as a consequence of increased sea surface temperature (SST). We show that this is consistent with climate model projections of a warming of the South Atlantic in response to reduced north-ward energy transport during the 8.2 kyr event.

Summary
South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event

Excerpt
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