Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments
Atmospheric circulation over the North Atlantic has undergone significant fluctuations during the Holocene. To better constrain these changes and their impacts on the Fennoscandian subarctic, we investigated molecular and inorganic proxies as well as plant wax D/H isotopes (δDC28) in a Holocene sed...
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Online Access: | https://boris.unibe.ch/122365/1/Thienemann_et_al-2018-Boreas.pdf https://boris.unibe.ch/122365/ |
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ftunivbern:oai:boris.unibe.ch:122365 2023-08-20T04:04:32+02:00 Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments Thienemann, Matthias Kusch, Stephanie Vogel, Hendrik Ritter, Benedikt Schefuss, Enno Rethemeyer, Janet 2019 application/pdf https://boris.unibe.ch/122365/1/Thienemann_et_al-2018-Boreas.pdf https://boris.unibe.ch/122365/ eng eng Wiley-Blackwell https://boris.unibe.ch/122365/ info:eu-repo/semantics/restrictedAccess Thienemann, Matthias; Kusch, Stephanie; Vogel, Hendrik; Ritter, Benedikt; Schefuss, Enno; Rethemeyer, Janet (2019). Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments. Boreas, 48(2), pp. 287-298. Wiley-Blackwell 10.1111/bor.12365 <http://dx.doi.org/10.1111/bor.12365> 550 Earth sciences & geology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1111/bor.12365 2023-07-31T21:47:49Z Atmospheric circulation over the North Atlantic has undergone significant fluctuations during the Holocene. To better constrain these changes and their impacts on the Fennoscandian subarctic, we investigated molecular and inorganic proxies as well as plant wax D/H isotopes (δDC28) in a Holocene sedimentary record from Lake Torneträsk (Sweden). These data indicate a thermal maximum c. 8100 to 6300 cal. a BP with reduced soil organic matter input, followed by a long-term cooling trend with increasing soil erosion. δD data suggest a stable atmospheric circulation with predominance of westerly flow and North Atlantic moisture sourcing during the Early and Middle Holocene. A substantial depletion in δD followed by increased flood frequency starting at c. 5300 cal. a BP and intensifying c. 1500 cal. a BP suggests a reorganization of the atmospheric circulation from zonal towards meridional flow with predominantly Arctic Ocean and Baltic Sea moisture sourcing. Article in Journal/Newspaper Arctic Arctic Ocean Fennoscandia Fennoscandian North Atlantic Subarctic BORIS (Bern Open Repository and Information System, University of Bern) Arctic Arctic Ocean Torneträsk ENVELOPE(18.861,18.861,68.392,68.392) Boreas 48 2 287 298 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
550 Earth sciences & geology |
spellingShingle |
550 Earth sciences & geology Thienemann, Matthias Kusch, Stephanie Vogel, Hendrik Ritter, Benedikt Schefuss, Enno Rethemeyer, Janet Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
topic_facet |
550 Earth sciences & geology |
description |
Atmospheric circulation over the North Atlantic has undergone significant fluctuations during the Holocene. To better constrain these changes and their impacts on the Fennoscandian subarctic, we investigated molecular and inorganic proxies as well as plant wax D/H isotopes (δDC28) in a Holocene sedimentary record from Lake Torneträsk (Sweden). These data indicate a thermal maximum c. 8100 to 6300 cal. a BP with reduced soil organic matter input, followed by a long-term cooling trend with increasing soil erosion. δD data suggest a stable atmospheric circulation with predominance of westerly flow and North Atlantic moisture sourcing during the Early and Middle Holocene. A substantial depletion in δD followed by increased flood frequency starting at c. 5300 cal. a BP and intensifying c. 1500 cal. a BP suggests a reorganization of the atmospheric circulation from zonal towards meridional flow with predominantly Arctic Ocean and Baltic Sea moisture sourcing. |
format |
Article in Journal/Newspaper |
author |
Thienemann, Matthias Kusch, Stephanie Vogel, Hendrik Ritter, Benedikt Schefuss, Enno Rethemeyer, Janet |
author_facet |
Thienemann, Matthias Kusch, Stephanie Vogel, Hendrik Ritter, Benedikt Schefuss, Enno Rethemeyer, Janet |
author_sort |
Thienemann, Matthias |
title |
Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
title_short |
Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
title_full |
Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
title_fullStr |
Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
title_full_unstemmed |
Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments |
title_sort |
neoglacial transition of atmospheric circulation patterns over fennoscandia recorded in holocene lake torneträsk sediments |
publisher |
Wiley-Blackwell |
publishDate |
2019 |
url |
https://boris.unibe.ch/122365/1/Thienemann_et_al-2018-Boreas.pdf https://boris.unibe.ch/122365/ |
long_lat |
ENVELOPE(18.861,18.861,68.392,68.392) |
geographic |
Arctic Arctic Ocean Torneträsk |
geographic_facet |
Arctic Arctic Ocean Torneträsk |
genre |
Arctic Arctic Ocean Fennoscandia Fennoscandian North Atlantic Subarctic |
genre_facet |
Arctic Arctic Ocean Fennoscandia Fennoscandian North Atlantic Subarctic |
op_source |
Thienemann, Matthias; Kusch, Stephanie; Vogel, Hendrik; Ritter, Benedikt; Schefuss, Enno; Rethemeyer, Janet (2019). Neoglacial transition of atmospheric circulation patterns over Fennoscandia recorded in Holocene Lake Torneträsk sediments. Boreas, 48(2), pp. 287-298. Wiley-Blackwell 10.1111/bor.12365 <http://dx.doi.org/10.1111/bor.12365> |
op_relation |
https://boris.unibe.ch/122365/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/bor.12365 |
container_title |
Boreas |
container_volume |
48 |
container_issue |
2 |
container_start_page |
287 |
op_container_end_page |
298 |
_version_ |
1774714915439771648 |