Holocene climate changes in southern Greenland: evidence from lake sediments
A Holocene lake sediment record is presented from Lake N14 situated on Angissoq island 15 km off the main coast of southern Greenland. The palaeoclimatic development has been interpreted on the basis of flux and percentage content of biogenic silica, clastic material, organic material and sulphur as...
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John Wiley & Sons Inc.
2004
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Online Access: | https://lup.lub.lu.se/record/259559 https://doi.org/10.1002/jqs.886 |
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ftulundlup:oai:lup.lub.lu.se:2bb0c678-49d7-4065-8f96-2f3a3944e04b 2023-05-15T16:26:17+02:00 Holocene climate changes in southern Greenland: evidence from lake sediments Andresen, Camilla Snowman Björck, Svante Bennike, O Bond, G 2004 https://lup.lub.lu.se/record/259559 https://doi.org/10.1002/jqs.886 eng eng John Wiley & Sons Inc. https://lup.lub.lu.se/record/259559 http://dx.doi.org/10.1002/jqs.886 wos:000225442200005 scopus:10944247800 Journal of Quaternary Science; 19(8), pp 783-795 (2004) ISSN: 1099-1417 Geology biogenic silica centennial and millennial variability paleolimnology paleoclimate mosses Neoglaciation Holocene southern Greenland contributiontojournal/article info:eu-repo/semantics/article text 2004 ftulundlup https://doi.org/10.1002/jqs.886 2023-02-01T23:28:21Z A Holocene lake sediment record is presented from Lake N14 situated on Angissoq island 15 km off the main coast of southern Greenland. The palaeoclimatic development has been interpreted on the basis of flux and percentage content of biogenic silica, clastic material, organic material and sulphur as well as sedimentation rate, moss content and magnetic susceptibility. A total of 43 radiocarbon dates has ensured a reliable chronology. It is argued that varying sediment composition mainly reflects changing precipitation. By analogy with the present meteorological conditions in southern Greenland, Holocene climate development is inferred. Between 11550 and 9300 cal. yr BP temperature and precipitation increase markedly, but this period is climatically unstable. From 9300 yr BP conditions become more stable and a Holocene climatic optimum, characterised by warm and humid conditions, is observed from 8000 to 5000 cal. yr BP. From 4700 cal. yr BP the first signs of a climatic deterioration are observed, and from 3700 cal. yr BP the climate has become more dry and cold. Superimposed on the climatic long-term trend is climate variability on a centennial time-scale that increases in amplitude after 3700 cal. yr BP. A climatic scenario related to the strength and position of the Greenland high-pressure cell and the Iceland low-pressure cell is proposed to explain the Holocene centennial climate variability. A comparison of the Lake N14 record with a terrestrial as well as a marine record from the eastern North Atlantic Ocean suggests that the centennial climate variability was uniform over large areas at certain times. Article in Journal/Newspaper Greenland Iceland North Atlantic Lund University Publications (LUP) Greenland Journal of Quaternary Science 19 8 783 795 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology biogenic silica centennial and millennial variability paleolimnology paleoclimate mosses Neoglaciation Holocene southern Greenland |
spellingShingle |
Geology biogenic silica centennial and millennial variability paleolimnology paleoclimate mosses Neoglaciation Holocene southern Greenland Andresen, Camilla Snowman Björck, Svante Bennike, O Bond, G Holocene climate changes in southern Greenland: evidence from lake sediments |
topic_facet |
Geology biogenic silica centennial and millennial variability paleolimnology paleoclimate mosses Neoglaciation Holocene southern Greenland |
description |
A Holocene lake sediment record is presented from Lake N14 situated on Angissoq island 15 km off the main coast of southern Greenland. The palaeoclimatic development has been interpreted on the basis of flux and percentage content of biogenic silica, clastic material, organic material and sulphur as well as sedimentation rate, moss content and magnetic susceptibility. A total of 43 radiocarbon dates has ensured a reliable chronology. It is argued that varying sediment composition mainly reflects changing precipitation. By analogy with the present meteorological conditions in southern Greenland, Holocene climate development is inferred. Between 11550 and 9300 cal. yr BP temperature and precipitation increase markedly, but this period is climatically unstable. From 9300 yr BP conditions become more stable and a Holocene climatic optimum, characterised by warm and humid conditions, is observed from 8000 to 5000 cal. yr BP. From 4700 cal. yr BP the first signs of a climatic deterioration are observed, and from 3700 cal. yr BP the climate has become more dry and cold. Superimposed on the climatic long-term trend is climate variability on a centennial time-scale that increases in amplitude after 3700 cal. yr BP. A climatic scenario related to the strength and position of the Greenland high-pressure cell and the Iceland low-pressure cell is proposed to explain the Holocene centennial climate variability. A comparison of the Lake N14 record with a terrestrial as well as a marine record from the eastern North Atlantic Ocean suggests that the centennial climate variability was uniform over large areas at certain times. |
format |
Article in Journal/Newspaper |
author |
Andresen, Camilla Snowman Björck, Svante Bennike, O Bond, G |
author_facet |
Andresen, Camilla Snowman Björck, Svante Bennike, O Bond, G |
author_sort |
Andresen, Camilla Snowman |
title |
Holocene climate changes in southern Greenland: evidence from lake sediments |
title_short |
Holocene climate changes in southern Greenland: evidence from lake sediments |
title_full |
Holocene climate changes in southern Greenland: evidence from lake sediments |
title_fullStr |
Holocene climate changes in southern Greenland: evidence from lake sediments |
title_full_unstemmed |
Holocene climate changes in southern Greenland: evidence from lake sediments |
title_sort |
holocene climate changes in southern greenland: evidence from lake sediments |
publisher |
John Wiley & Sons Inc. |
publishDate |
2004 |
url |
https://lup.lub.lu.se/record/259559 https://doi.org/10.1002/jqs.886 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Iceland North Atlantic |
genre_facet |
Greenland Iceland North Atlantic |
op_source |
Journal of Quaternary Science; 19(8), pp 783-795 (2004) ISSN: 1099-1417 |
op_relation |
https://lup.lub.lu.se/record/259559 http://dx.doi.org/10.1002/jqs.886 wos:000225442200005 scopus:10944247800 |
op_doi |
https://doi.org/10.1002/jqs.886 |
container_title |
Journal of Quaternary Science |
container_volume |
19 |
container_issue |
8 |
container_start_page |
783 |
op_container_end_page |
795 |
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1766015190959128576 |