Articles | Volume 17, issue 5
https://doi.org/10.5194/cp-17-2305-2021
https://doi.org/10.5194/cp-17-2305-2021
Research article
 | 
29 Oct 2021
Research article |  | 29 Oct 2021

Evaluation of lipid biomarkers as proxies for sea ice and ocean temperatures along the Antarctic continental margin

Nele Lamping, Juliane Müller, Jens Hefter, Gesine Mollenhauer, Christian Haas, Xiaoxu Shi, Maria-Elena Vorrath, Gerrit Lohmann, and Claus-Dieter Hillenbrand

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Short summary
We analysed biomarker concentrations on surface sediment samples from the Antarctic continental margin. Highly branched isoprenoids and GDGTs are used for reconstructing recent sea-ice distribution patterns and ocean temperatures respectively. We compared our biomarker-based results with data obtained from satellite observations and estimated from a numerical model and find reasonable agreements. Further, we address caveats and provide recommendations for future investigations.