Bunker Cave stalagmites: an archive for central European Holocene climate variability
Holocene climate was characterised by variability on multi-centennial to multi-decadal time scales. In central Europe, these fluctuations were most pronounced during winter. Here we present a record of past winter climate variability for the last 10.8 ka based on four speleothems from Bunker Cave, w...
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2012
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00023963 2023-05-15T17:29:20+02:00 Bunker Cave stalagmites: an archive for central European Holocene climate variability Fohlmeister, J. Schröder-Ritzrau, A. Scholz, D. Spötl, C. Riechelmann, D. F. C. Mudelsee, M. Wackerbarth, A. Gerdes, A. Riechelmann, S. Immenhauser, A. Richter, D. K. Mangini, A. 2012-10 electronic https://doi.org/10.5194/cp-8-1751-2012 https://noa.gwlb.de/receive/cop_mods_00023963 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023918/cp-8-1751-2012.pdf https://cp.copernicus.org/articles/8/1751/2012/cp-8-1751-2012.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-8-1751-2012 https://noa.gwlb.de/receive/cop_mods_00023963 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023918/cp-8-1751-2012.pdf https://cp.copernicus.org/articles/8/1751/2012/cp-8-1751-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/cp-8-1751-2012 2022-02-08T22:50:23Z Holocene climate was characterised by variability on multi-centennial to multi-decadal time scales. In central Europe, these fluctuations were most pronounced during winter. Here we present a record of past winter climate variability for the last 10.8 ka based on four speleothems from Bunker Cave, western Germany. Due to its central European location, the cave site is particularly well suited to record changes in precipitation and temperature in response to changes in the North Atlantic realm. We present high-resolution records of δ18O, δ13C values and Mg/Ca ratios. Changes in the Mg/Ca ratio are attributed to past meteoric precipitation variability. The stable C isotope composition of the speleothems most likely reflects changes in vegetation and precipitation, and variations in the δ18O signal are interpreted as variations in meteoric precipitation and temperature. We found cold and dry periods between 8 and 7 ka, 6.5 and 5.5 ka, 4 and 3 ka as well as between 0.7 and 0.2 ka. The proxy signals in the Bunker Cave stalagmites compare well with other isotope records and, thus, seem representative for central European Holocene climate variability. The prominent 8.2 ka event and the Little Ice Age cold events are both recorded in the Bunker Cave record. However, these events show a contrasting relationship between climate and δ18O, which is explained by different causes underlying the two climate anomalies. Whereas the Little Ice Age is attributed to a pronounced negative phase of the North Atlantic Oscillation, the 8.2 ka event was triggered by cooler conditions in the North Atlantic due to a slowdown of the thermohaline circulation. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Niedersächsisches Online-Archiv NOA Climate of the Past 8 5 1751 1764 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Fohlmeister, J. Schröder-Ritzrau, A. Scholz, D. Spötl, C. Riechelmann, D. F. C. Mudelsee, M. Wackerbarth, A. Gerdes, A. Riechelmann, S. Immenhauser, A. Richter, D. K. Mangini, A. Bunker Cave stalagmites: an archive for central European Holocene climate variability |
topic_facet |
article Verlagsveröffentlichung |
description |
Holocene climate was characterised by variability on multi-centennial to multi-decadal time scales. In central Europe, these fluctuations were most pronounced during winter. Here we present a record of past winter climate variability for the last 10.8 ka based on four speleothems from Bunker Cave, western Germany. Due to its central European location, the cave site is particularly well suited to record changes in precipitation and temperature in response to changes in the North Atlantic realm. We present high-resolution records of δ18O, δ13C values and Mg/Ca ratios. Changes in the Mg/Ca ratio are attributed to past meteoric precipitation variability. The stable C isotope composition of the speleothems most likely reflects changes in vegetation and precipitation, and variations in the δ18O signal are interpreted as variations in meteoric precipitation and temperature. We found cold and dry periods between 8 and 7 ka, 6.5 and 5.5 ka, 4 and 3 ka as well as between 0.7 and 0.2 ka. The proxy signals in the Bunker Cave stalagmites compare well with other isotope records and, thus, seem representative for central European Holocene climate variability. The prominent 8.2 ka event and the Little Ice Age cold events are both recorded in the Bunker Cave record. However, these events show a contrasting relationship between climate and δ18O, which is explained by different causes underlying the two climate anomalies. Whereas the Little Ice Age is attributed to a pronounced negative phase of the North Atlantic Oscillation, the 8.2 ka event was triggered by cooler conditions in the North Atlantic due to a slowdown of the thermohaline circulation. |
format |
Article in Journal/Newspaper |
author |
Fohlmeister, J. Schröder-Ritzrau, A. Scholz, D. Spötl, C. Riechelmann, D. F. C. Mudelsee, M. Wackerbarth, A. Gerdes, A. Riechelmann, S. Immenhauser, A. Richter, D. K. Mangini, A. |
author_facet |
Fohlmeister, J. Schröder-Ritzrau, A. Scholz, D. Spötl, C. Riechelmann, D. F. C. Mudelsee, M. Wackerbarth, A. Gerdes, A. Riechelmann, S. Immenhauser, A. Richter, D. K. Mangini, A. |
author_sort |
Fohlmeister, J. |
title |
Bunker Cave stalagmites: an archive for central European Holocene climate variability |
title_short |
Bunker Cave stalagmites: an archive for central European Holocene climate variability |
title_full |
Bunker Cave stalagmites: an archive for central European Holocene climate variability |
title_fullStr |
Bunker Cave stalagmites: an archive for central European Holocene climate variability |
title_full_unstemmed |
Bunker Cave stalagmites: an archive for central European Holocene climate variability |
title_sort |
bunker cave stalagmites: an archive for central european holocene climate variability |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/cp-8-1751-2012 https://noa.gwlb.de/receive/cop_mods_00023963 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023918/cp-8-1751-2012.pdf https://cp.copernicus.org/articles/8/1751/2012/cp-8-1751-2012.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
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-8-1751-2012 https://noa.gwlb.de/receive/cop_mods_00023963 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023918/cp-8-1751-2012.pdf https://cp.copernicus.org/articles/8/1751/2012/cp-8-1751-2012.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-8-1751-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1751 |
op_container_end_page |
1764 |
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1766123233948467200 |