Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 2
Articles | Volume 18, issue 2
https://doi.org/10.5194/essd-18-1225-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-1225-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 2
Data description article
 | 
16 Feb 2026
Data description article |  | 16 Feb 2026

A complete database of AMS radiocarbon estimates from Lake Baikal sediment cores with a lake-wide assessment of TOC age offsets

Samuel R. S. Newall, Anson W. Mackay, Natalia Piotrowska, and Maarten Blaauw

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Short summary
Lake sediment cores are records of ancient climate change. Radiocarbon dates provide the records a timeframe. We present a database of radiocarbon data from Lake Baikal sediment cores to aid re-use of this data, and evaluate a key correction required to use radiocarbon data. Previous studies used corrections of 380–2100 years with an uncertainty of 90 years at most. Our results (1610 ± 760 years) highlight that age offset uncertainty has been underestimated and better estimators are needed.
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