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  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): Millennial-scale climate variability in the Northern Hemisphere influenced glacier dynamics in the Alps around 250,000 years ago. - Communications Earth and Environment, 4, 426.
https://doi.org/10.1038/s43247-023-01083-y

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Datensatz-Permalink: https://publications.pik-potsdam.de/pubman/item/item_29064 Versions-Permalink: https://publications.pik-potsdam.de/pubman/item/item_29064_2
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Skiba, Vanessa1, Autor              
Spötl, Christoph2, Autor
Trüssel, Martin2, Autor
Schröder-Ritzrau, Andrea2, Autor
Schröder, Birgit2, Autor
Frank, Norbert2, Autor
Eichstädter, René2, Autor
Tjallingii, Rik2, Autor
Marwan, Norbert1, Autor              
Zhang, Xu2, Autor
Fohlmeister, Jens1, Autor              
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent13              
2External Organizations, ou_persistent22              

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 Zusammenfassung: 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.

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Sprache(n): eng - Englisch
 Datum: 2023-11-062023-11-202023-11-20
 Publikationsstatus: Final veröffentlicht
 Seiten: 10
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/s43247-023-01083-y
MDB-ID: No data to archive
PIKDOMAIN: RD4 - Complexity Science
Organisational keyword: RD4 - Complexity Science
Working Group: Development of advanced time series analysis techniques
Research topic keyword: Paleoclimate
Regional keyword: Europe
Model / method: Quantitative Methods
OATYPE: Gold - DEAL Springer Nature
 Art des Abschluß: -

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Titel: Communications Earth and Environment
Genre der Quelle: Zeitschrift, SCI, Scopus, oa
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Seiten: - Band / Heft: 4 Artikelnummer: 426 Start- / Endseite: - Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/communications-earth-environment
Publisher: Nature