Highly branched isoprenoids for Southern Ocean sea ice reconstructions: a pilot study from the Western Antarctic Peninsula

Vorrath, Maria-Elena; Müller, Juliane; Esper, Oliver; Mollenhauer, Gesine; Haas, Christian; Schefuß, Enno; Fahl, Kirsten

doi:https://doi.org/10.5194/bg-16-2961-2019

Articles | Volume 16, issue 15

Biogeosciences, 16, 2961–2981, 2019

https://doi.org/10.5194/bg-16-2961-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Biogeosciences, 16, 2961–2981, 2019

https://doi.org/10.5194/bg-16-2961-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 15

Research article 02 Aug 2019

Research article | 02 Aug 2019

Highly branched isoprenoids for Southern Ocean sea ice reconstructions: a pilot study from the Western Antarctic Peninsula

Maria-Elena Vorrath et al.

Supplement

https://doi.org/10.5194/bg-16-2961-2019-supplement

Data sets

Highly branched isoprenoids, radiocarbon ages and diatom asmblages in surface sediments from Southern Ocean Maria-Elena Vorrath, Juliane Müller, Oliver Esper, Gesine Mollenhauer, Christian Haas, Enno Schefuß, and Kirsten Fahl https://doi.org/10.1594/PANGAEA.897165

Short summary

The study highlights new approaches in the investigation of past sea ice in Antarctica to reconstruct the climate conditions in earth's history and reveal its future development under global warming. We examined the distribution of organic remains from different algae at the Western Antarctic Peninsula and compared it to fossil and satellite records. We evaluated IPSO₂₅ – the sea ice proxy for the Southern Ocean with 25 carbon atoms – as a useful tool for sea ice reconstructions in this region.