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BG | 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.

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.

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Cited articles

Armand, L. K. and Zielinski, U.: Diatom Species of the genus Rhizosolenia from Southern Ocean sediments: distribution and taxonomic notes, Diatom Res., 16, 259–294, https://doi.org/10.1080/0269249X.2001.9705520, 2001. 
Armand, L. K., Crosta, X., Romero, O., and Pichon, J.-J.: The biogeography of major diatom taxa in Southern Ocean sediments: 1. Sea ice related species, Palaeogeogr. Palaeocl., 223, 93–126, https://doi.org/10.1016/J.PALAEO.2005.02.015, 2005. 
Arrigo, K. R., Worthen, D. L., Lizotte, M. P., Dixon, P. and Dieckmann, G.: Primary Production in Antarctic Sea Ice, Science, 276, 394–397, https://doi.org/10.1126/science.276.5311.394, 1997. 
Barbara, L., Crosta, X., Schmidt, S., and Massé, G.: Diatoms and biomarkers evidence for major changes in sea ice conditions prior the instrumental period in Antarctic Peninsula, Quaternary Sci. Rev., 79, 99–110, https://doi.org/10.1016/j.quascirev.2013.07.021, 2013. 
Barbara, L., Crosta, X., Leventer, A., Schmidt, S., Etourneau, J., Domack, E., and Massé, G.: Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability, Paleoceanography, 31, 131–147, https://doi.org/10.1002/2015PA002785, 2016. 
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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.
The study highlights new approaches in the investigation of past sea ice in Antarctica to...
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