Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record
Knowledge about the timing, amplitude and spatial gradients of Holocene environmental variability in the circum-Baltic region is key to understanding its responses to ongoing climate change. Based on a multi-dating and proxy approach, we reconstruct changes in productivity using total organic carbon...
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Copernicus Publications
2023
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00064660 2023-05-15T17:25:26+02:00 Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record Czymzik, Markus Tjallingii, Rik Plessen, Birgit Feldens, Peter Theuerkauf, Martin Moros, Matthias Schwab, Markus J. Nantke, Carla K. M. Pinkerneil, Silvia Brauer, Achim Arz, Helge W. 2023-01 electronic https://doi.org/10.5194/cp-19-233-2023 https://noa.gwlb.de/receive/cop_mods_00064660 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063397/cp-19-233-2023.pdf https://cp.copernicus.org/articles/19/233/2023/cp-19-233-2023.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-19-233-2023 https://noa.gwlb.de/receive/cop_mods_00064660 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063397/cp-19-233-2023.pdf https://cp.copernicus.org/articles/19/233/2023/cp-19-233-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/cp-19-233-2023 2023-01-30T00:13:22Z Knowledge about the timing, amplitude and spatial gradients of Holocene environmental variability in the circum-Baltic region is key to understanding its responses to ongoing climate change. Based on a multi-dating and proxy approach, we reconstruct changes in productivity using total organic carbon (TOC) contents in sediments of Lake Kälksjön (KKJ) from west–central Sweden spanning the last 9612 ( +255/-114) years. An exception is the period from 1878 CE until today, in which sedimentation was dominated by anthropogenic lake level lowering and land use. In-lake productivity was higher during periods of warmer winters with shortened ice cover and prolonged growing seasons. A multi-millennial increase in productivity throughout the last ∼ 9600 years is associated with progressively warmer winters in northwestern Europe, likely triggered by the coinciding increase in Northern Hemisphere winter insolation. Decadal to centennial periods of higher productivity in KKJ tend to correspond to warmer winters during a more positive North Atlantic Oscillation (NAO) polarity, as reconstructed for the last 8000 years. In consequence, we assume our decadal to centennial productivity record from KKJ sediments for the complete ∼ 9600 years to provide a qualitative record of NAO polarity. A shift towards higher productivity variability at ∼ 5450 cal a BP is hypothesized to reflect a reinforcement of NAO-like atmospheric circulation variability, possibly driven by more vigorous changes in North Atlantic deep-water formation. Article in Journal/Newspaper North Atlantic Deep Water North Atlantic North Atlantic oscillation Niedersächsisches Online-Archiv NOA Climate of the Past 19 1 233 248 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Czymzik, Markus Tjallingii, Rik Plessen, Birgit Feldens, Peter Theuerkauf, Martin Moros, Matthias Schwab, Markus J. Nantke, Carla K. M. Pinkerneil, Silvia Brauer, Achim Arz, Helge W. Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
topic_facet |
article Verlagsveröffentlichung |
description |
Knowledge about the timing, amplitude and spatial gradients of Holocene environmental variability in the circum-Baltic region is key to understanding its responses to ongoing climate change. Based on a multi-dating and proxy approach, we reconstruct changes in productivity using total organic carbon (TOC) contents in sediments of Lake Kälksjön (KKJ) from west–central Sweden spanning the last 9612 ( +255/-114) years. An exception is the period from 1878 CE until today, in which sedimentation was dominated by anthropogenic lake level lowering and land use. In-lake productivity was higher during periods of warmer winters with shortened ice cover and prolonged growing seasons. A multi-millennial increase in productivity throughout the last ∼ 9600 years is associated with progressively warmer winters in northwestern Europe, likely triggered by the coinciding increase in Northern Hemisphere winter insolation. Decadal to centennial periods of higher productivity in KKJ tend to correspond to warmer winters during a more positive North Atlantic Oscillation (NAO) polarity, as reconstructed for the last 8000 years. In consequence, we assume our decadal to centennial productivity record from KKJ sediments for the complete ∼ 9600 years to provide a qualitative record of NAO polarity. A shift towards higher productivity variability at ∼ 5450 cal a BP is hypothesized to reflect a reinforcement of NAO-like atmospheric circulation variability, possibly driven by more vigorous changes in North Atlantic deep-water formation. |
format |
Article in Journal/Newspaper |
author |
Czymzik, Markus Tjallingii, Rik Plessen, Birgit Feldens, Peter Theuerkauf, Martin Moros, Matthias Schwab, Markus J. Nantke, Carla K. M. Pinkerneil, Silvia Brauer, Achim Arz, Helge W. |
author_facet |
Czymzik, Markus Tjallingii, Rik Plessen, Birgit Feldens, Peter Theuerkauf, Martin Moros, Matthias Schwab, Markus J. Nantke, Carla K. M. Pinkerneil, Silvia Brauer, Achim Arz, Helge W. |
author_sort |
Czymzik, Markus |
title |
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
title_short |
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
title_full |
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
title_fullStr |
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
title_full_unstemmed |
Mid-Holocene reinforcement of North Atlantic atmospheric circulation variability from a western Baltic lake sediment record |
title_sort |
mid-holocene reinforcement of north atlantic atmospheric circulation variability from a western baltic lake sediment record |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/cp-19-233-2023 https://noa.gwlb.de/receive/cop_mods_00064660 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063397/cp-19-233-2023.pdf https://cp.copernicus.org/articles/19/233/2023/cp-19-233-2023.pdf |
genre |
North Atlantic Deep Water North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic Deep Water North Atlantic North Atlantic oscillation |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-19-233-2023 https://noa.gwlb.de/receive/cop_mods_00064660 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063397/cp-19-233-2023.pdf https://cp.copernicus.org/articles/19/233/2023/cp-19-233-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/cp-19-233-2023 |
container_title |
Climate of the Past |
container_volume |
19 |
container_issue |
1 |
container_start_page |
233 |
op_container_end_page |
248 |
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1766116856345657344 |