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  Climate sequences over the last 9 glacial Terminations from air and water isotopes on the EPICA Dome C ice core

Landais, A., Grisart, A., Bouchet, M., Parrenin, F., Prié, F., Harris-Stuart, R., Capron, E., Jacob, R., Minster, B., Stenni, B., Fourré, E. (2023): Climate sequences over the last 9 glacial Terminations from air and water isotopes on the EPICA Dome C ice core, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1243

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017362 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017362_2
Genre: Konferenzbeitrag

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Urheber

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 Urheber:
Landais, Amaelle1, Autor
Grisart, Antoine1, Autor
Bouchet, Marie1, Autor
Parrenin, Frédéric1, Autor
Prié, Frédéric1, Autor
Harris-Stuart, Romilly1, Autor
Capron, Emilie1, Autor
Jacob, Roxanne1, Autor
Minster, Bénédicte1, Autor
Stenni, Barbara1, Autor
Fourré, Elise1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

Inhalt

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Schlagwörter: -
 Zusammenfassung: The drill of the EPICA Dome C ice core has been completed almost 20 years ago. This ice core already provided many reference records for climate and atmospheric greenhouse gase concentrations over the last 800,000 years, hence covering 9 glacial interglacial transitions or glacial terminations. These records combined to records from other archives have already shown the diversity in term of amplitudes and durations of the last 9 glacial terminations occurring in different orbital contexts. Still, the relatively low resolution of the current records hampered a good chronology of the oldest deglaciations as well as the study of the rapid climatic variability at centennial to multi-millennial scale superimposed to the longer term orbital climatic variability. Here, we will present high resolution measurements of water and air isotopes on the EPICA Dome C ice core over the last 800,000 years with a particular focus on glacial terminations. These new data enable to improve the chronology of the EPICA Dome C ice core hence improving the link between orbital forcing and climatic variability, especially for the period between 800,000 years and 200,000 years before present. In addition, our relatively high resolution records (50-300 years) of water and air isotopes enable us to describe on the same chronology the occurrence of millennial scale variability in the low to mid latitudes over the terminations 2, 3, 4 and 5 (occurring between 440,000 and 120,000 years before present) while local climate at the drilling site of EPICA Dome C has a much smoother evolution.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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 Identifikatoren: DOI: 10.57757/IUGG23-1243
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Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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