Climate of the Past
Climate of the Past
CP
Articles | Volume 22, issue 5
Articles | Volume 22, issue 5
https://doi.org/10.5194/cp-22-1023-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-22-1023-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 5
Research article
 | 
15 May 2026
Research article |  | 15 May 2026

Microscale alkenone heterogeneity and replicability of ultra-high-resolution temperature records from marine sediments

Jannis Viola, Lars Wörmer, Kai-Uwe Hinrichs, and Thomas Laepple

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Short summary
This study used mass spectrometry imaging (MSI) to detect spatial patterns of biomarkers used for sea surface temperature (SST) reconstructions. The observed proxy heterogeneity was bigger than expected within layered marine sediments. The data was used to estimate the climate signal content of individual MSI based reconstructions. The results can be used to inform sampling decisions or to derive uncertainty estimates for high-resolution SST reconstructions and climate variability estimates.
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