Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records
Two well dated Holocene sediment records bordering the Denmark Strait region have been used to reconstruct past climate variability. The content of biogenic silica, clastic and organic material and moss in a lacustrine record from Lake N14 has been used to infer past variability in precipitation and...
Published in: | Geografiska Annaler: Series A, Physical Geography |
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2005
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Online Access: | https://lup.lub.lu.se/record/235745 https://doi.org/10.1111/j.0435-3676.2005.00250.x |
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ftulundlup:oai:lup.lub.lu.se:ccbbbacd-f713-4240-9933-68185de16bd8 2023-05-15T15:12:07+02:00 Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records Andresen, Camilla Snowman Björck, Svante 2005 https://lup.lub.lu.se/record/235745 https://doi.org/10.1111/j.0435-3676.2005.00250.x eng eng Wiley-Blackwell https://lup.lub.lu.se/record/235745 http://dx.doi.org/10.1111/j.0435-3676.2005.00250.x wos:000230002700011 scopus:20944432742 Geografiska Annaler. Series A. Physical Geography; 87(1), pp 159-174 (2005) ISSN: 0435-3676 Geology climate variability sand petrology Denmark Strait biogenic silica contributiontojournal/article info:eu-repo/semantics/article text 2005 ftulundlup https://doi.org/10.1111/j.0435-3676.2005.00250.x 2023-02-01T23:28:26Z Two well dated Holocene sediment records bordering the Denmark Strait region have been used to reconstruct past climate variability. The content of biogenic silica, clastic and organic material and moss in a lacustrine record from Lake N14 has been used to infer past variability in precipitation and temperature in southern Greenland. Sedimentologic and petrologic composition of sand in a shelf sediment record from the Djupall trough is used to infer past variability in the northwestern storm activity on northwestern Iceland, which probably also affected the inflow of polar waters from the East Greenland Current. Our evaluation of these records with a number of previous studies from the region documents Holocene climatic optimum conditions peaking between 8000 and 6500 calendar years before present (cal yr BP). Mid-Holocene climate deterioration set in around 5000 cal yr BP followed by a further marked setback around 3500 cal yr Bp. A stacking of climate variability on a centennial timescale from previous studies in the area shows a fairly good correspondence to the timing of marked cold and warm events as evidenced from the Lake N14 and the Djupull trough records. Cooler periods are explained as the response to marked incursions of ice-laden polar water from the Arctic Ocean to the Denmark Strait region. Cool northerly and northwesterly winds along the East Greenland coast in relation to frequent strong atmospheric low pressure in the Barents Sea, coupled with strong high pressure over Greenland, would have favoured southward export of polar waters. A comparison with the proxy records of nuclide production (C-14 and Be-10) suggests that solar activity may have had some influence on the atmospheric pressure distribution in the Denmark Strait region. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Denmark Strait East Greenland east greenland current Greenland Iceland Lund University Publications (LUP) Arctic Arctic Ocean Barents Sea Greenland Geografiska Annaler: Series A, Physical Geography 87 1 159 174 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology climate variability sand petrology Denmark Strait biogenic silica |
spellingShingle |
Geology climate variability sand petrology Denmark Strait biogenic silica Andresen, Camilla Snowman Björck, Svante Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
topic_facet |
Geology climate variability sand petrology Denmark Strait biogenic silica |
description |
Two well dated Holocene sediment records bordering the Denmark Strait region have been used to reconstruct past climate variability. The content of biogenic silica, clastic and organic material and moss in a lacustrine record from Lake N14 has been used to infer past variability in precipitation and temperature in southern Greenland. Sedimentologic and petrologic composition of sand in a shelf sediment record from the Djupall trough is used to infer past variability in the northwestern storm activity on northwestern Iceland, which probably also affected the inflow of polar waters from the East Greenland Current. Our evaluation of these records with a number of previous studies from the region documents Holocene climatic optimum conditions peaking between 8000 and 6500 calendar years before present (cal yr BP). Mid-Holocene climate deterioration set in around 5000 cal yr BP followed by a further marked setback around 3500 cal yr Bp. A stacking of climate variability on a centennial timescale from previous studies in the area shows a fairly good correspondence to the timing of marked cold and warm events as evidenced from the Lake N14 and the Djupull trough records. Cooler periods are explained as the response to marked incursions of ice-laden polar water from the Arctic Ocean to the Denmark Strait region. Cool northerly and northwesterly winds along the East Greenland coast in relation to frequent strong atmospheric low pressure in the Barents Sea, coupled with strong high pressure over Greenland, would have favoured southward export of polar waters. A comparison with the proxy records of nuclide production (C-14 and Be-10) suggests that solar activity may have had some influence on the atmospheric pressure distribution in the Denmark Strait region. |
format |
Article in Journal/Newspaper |
author |
Andresen, Camilla Snowman Björck, Svante |
author_facet |
Andresen, Camilla Snowman Björck, Svante |
author_sort |
Andresen, Camilla Snowman |
title |
Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
title_short |
Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
title_full |
Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
title_fullStr |
Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
title_full_unstemmed |
Sholocene climate variability in the Denmark Strait region - A land-sea correlation of new and existing climate proxy records |
title_sort |
sholocene climate variability in the denmark strait region - a land-sea correlation of new and existing climate proxy records |
publisher |
Wiley-Blackwell |
publishDate |
2005 |
url |
https://lup.lub.lu.se/record/235745 https://doi.org/10.1111/j.0435-3676.2005.00250.x |
geographic |
Arctic Arctic Ocean Barents Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Barents Sea Greenland |
genre |
Arctic Arctic Ocean Barents Sea Denmark Strait East Greenland east greenland current Greenland Iceland |
genre_facet |
Arctic Arctic Ocean Barents Sea Denmark Strait East Greenland east greenland current Greenland Iceland |
op_source |
Geografiska Annaler. Series A. Physical Geography; 87(1), pp 159-174 (2005) ISSN: 0435-3676 |
op_relation |
https://lup.lub.lu.se/record/235745 http://dx.doi.org/10.1111/j.0435-3676.2005.00250.x wos:000230002700011 scopus:20944432742 |
op_doi |
https://doi.org/10.1111/j.0435-3676.2005.00250.x |
container_title |
Geografiska Annaler: Series A, Physical Geography |
container_volume |
87 |
container_issue |
1 |
container_start_page |
159 |
op_container_end_page |
174 |
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1766342848294158336 |