Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago
Mountain glaciers are sensitive recorders of natural and human-induced climate change. Therefore, it is imperative to obtain a comprehensive understanding of the interplay between climate and glacier response on both short and long timescales. Here we present an analysis of oxygen and carbon isotope...
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2023
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ftpotsdamik:oai:publications.pik-potsdam.de:item_29064 2024-06-23T07:55:07+00:00 Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago Skiba, V. Spötl, C. Trüssel, M. Schröder-Ritzrau, A. Schröder, B. Frank, N. Eichstädter, R. Tjallingii, R. Marwan, N. Zhang, X. Fohlmeister, J. 2023-11-20 application/pdf https://publications.pik-potsdam.de/pubman/item/item_29064 https://publications.pik-potsdam.de/pubman/item/item_29064_1/component/file_29065/Skiba_2023_s43247-023-01083-y.pdf eng eng info:eu-repo/semantics/altIdentifier/doi/10.1038/s43247-023-01083-y https://publications.pik-potsdam.de/pubman/item/item_29064 https://publications.pik-potsdam.de/pubman/item/item_29064_1/component/file_29065/Skiba_2023_s43247-023-01083-y.pdf info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Communications Earth and Environment info:eu-repo/semantics/article 2023 ftpotsdamik https://doi.org/10.1038/s43247-023-01083-y 2024-06-04T14:23:05Z Mountain glaciers are sensitive recorders of natural and human-induced climate change. Therefore, it is imperative to obtain a comprehensive understanding of the interplay between climate and glacier response on both short and long timescales. Here we present an analysis of oxygen and carbon isotope data from speleothems formed mainly below a glacier-covered catchment in the Alps 300,000 to 200,000 years ago. Isotope-enabled climate model simulations reveal that δ18O of precipitation in the Alps was higher by approximately 1 ‰ during interstadials compared to stadials. This agrees with interstadial-stadial amplitudes of our new speleothem-based estimate after correcting for cave-internal effects. We propose that the variability of these cave-internal effects offers a unique tool for reconstructing long-term dynamics of warm-based Alpine palaeoglaciers. Our data thereby suggests a close link between North Atlantic interstadial-stadial variability and the meltwater dynamics of Alpine glaciers during Marine Isotope Stage 8 and 7d. Article in Journal/Newspaper North Atlantic Publication Database PIK (Potsdam Institute for Climate Impact Research) Communications Earth & Environment 4 1 |
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Open Polar |
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Publication Database PIK (Potsdam Institute for Climate Impact Research) |
op_collection_id |
ftpotsdamik |
language |
English |
description |
Mountain glaciers are sensitive recorders of natural and human-induced climate change. Therefore, it is imperative to obtain a comprehensive understanding of the interplay between climate and glacier response on both short and long timescales. Here we present an analysis of oxygen and carbon isotope data from speleothems formed mainly below a glacier-covered catchment in the Alps 300,000 to 200,000 years ago. Isotope-enabled climate model simulations reveal that δ18O of precipitation in the Alps was higher by approximately 1 ‰ during interstadials compared to stadials. This agrees with interstadial-stadial amplitudes of our new speleothem-based estimate after correcting for cave-internal effects. We propose that the variability of these cave-internal effects offers a unique tool for reconstructing long-term dynamics of warm-based Alpine palaeoglaciers. Our data thereby suggests a close link between North Atlantic interstadial-stadial variability and the meltwater dynamics of Alpine glaciers during Marine Isotope Stage 8 and 7d. |
format |
Article in Journal/Newspaper |
author |
Skiba, V. Spötl, C. Trüssel, M. Schröder-Ritzrau, A. Schröder, B. Frank, N. Eichstädter, R. Tjallingii, R. Marwan, N. Zhang, X. Fohlmeister, J. |
spellingShingle |
Skiba, V. Spötl, C. Trüssel, M. Schröder-Ritzrau, A. Schröder, B. Frank, N. Eichstädter, R. Tjallingii, R. Marwan, N. Zhang, X. Fohlmeister, J. Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
author_facet |
Skiba, V. Spötl, C. Trüssel, M. Schröder-Ritzrau, A. Schröder, B. Frank, N. Eichstädter, R. Tjallingii, R. Marwan, N. Zhang, X. Fohlmeister, J. |
author_sort |
Skiba, V. |
title |
Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
title_short |
Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
title_full |
Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
title_fullStr |
Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
title_full_unstemmed |
Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago |
title_sort |
millennial-scale climate variability in the northern hemisphere influenced glacier dynamics in the alps around 250,000 years ago |
publishDate |
2023 |
url |
https://publications.pik-potsdam.de/pubman/item/item_29064 https://publications.pik-potsdam.de/pubman/item/item_29064_1/component/file_29065/Skiba_2023_s43247-023-01083-y.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Communications Earth and Environment |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s43247-023-01083-y https://publications.pik-potsdam.de/pubman/item/item_29064 https://publications.pik-potsdam.de/pubman/item/item_29064_1/component/file_29065/Skiba_2023_s43247-023-01083-y.pdf |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1038/s43247-023-01083-y |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
_version_ |
1802647559251951616 |