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

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...

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Main Authors: K. Ljung, S. Björck, H. Renssen, D. Hammarlund
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2008
Subjects:
geo
Online Access:http://www.clim-past.net/4/35/2008/cp-4-35-2008.pdf
https://doaj.org/article/98d1f9d624c44655a9e3a25008ea7b95
id fttriple:oai:gotriple.eu:oai:doaj.org/article:98d1f9d624c44655a9e3a25008ea7b95
record_format openpolar
spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:98d1f9d624c44655a9e3a25008ea7b95 2023-05-15T16:40:53+02:00 South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event K. Ljung S. Björck H. Renssen D. Hammarlund 2008-02-01 http://www.clim-past.net/4/35/2008/cp-4-35-2008.pdf https://doaj.org/article/98d1f9d624c44655a9e3a25008ea7b95 en eng Copernicus Publications 1814-9324 1814-9332 http://www.clim-past.net/4/35/2008/cp-4-35-2008.pdf https://doaj.org/article/98d1f9d624c44655a9e3a25008ea7b95 undefined Climate of the Past, Vol 4, Iss 1, Pp 35-45 (2008) geo archeo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2008 fttriple 2023-01-22T19:26:12Z 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. Article in Journal/Newspaper Ice Sheet North Atlantic Unknown
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic geo
archeo
spellingShingle geo
archeo
K. Ljung
S. Björck
H. Renssen
D. Hammarlund
South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
topic_facet geo
archeo
description 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.
format Article in Journal/Newspaper
author K. Ljung
S. Björck
H. Renssen
D. Hammarlund
author_facet K. Ljung
S. Björck
H. Renssen
D. Hammarlund
author_sort K. Ljung
title South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
title_short South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
title_full South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
title_fullStr South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
title_full_unstemmed South Atlantic island record reveals a South Atlantic response to the 8.2 kyr event
title_sort south atlantic island record reveals a south atlantic response to the 8.2 kyr event
publisher Copernicus Publications
publishDate 2008
url http://www.clim-past.net/4/35/2008/cp-4-35-2008.pdf
https://doaj.org/article/98d1f9d624c44655a9e3a25008ea7b95
genre Ice Sheet
North Atlantic
genre_facet Ice Sheet
North Atlantic
op_source Climate of the Past, Vol 4, Iss 1, Pp 35-45 (2008)
op_relation 1814-9324
1814-9332
http://www.clim-past.net/4/35/2008/cp-4-35-2008.pdf
https://doaj.org/article/98d1f9d624c44655a9e3a25008ea7b95
op_rights undefined
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