Articles | Volume 42, issue 1
https://doi.org/10.5194/jm-42-35-2023
https://doi.org/10.5194/jm-42-35-2023
Research article
 | 
02 Jun 2023
Research article |  | 02 Jun 2023

An expanded database of Southern Hemisphere surface sediment dinoflagellate cyst assemblages and their oceanographic affinities

Lena Mareike Thöle, Peter Dirk Nooteboom, Suning Hou, Rujian Wang, Senyan Nie, Elisabeth Michel, Isabel Sauermilch, Fabienne Marret, Francesca Sangiorgi, and Peter Kristian Bijl

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Cited articles

Adkins, J. F.: The role of deep ocean circulation in setting glacial climates, Paleoceanography, 28, 539–561, doi.org/10.1002/palo.20046, 2013. 
Armand, L. K., O'Brien, P. E., and On-board Scientific Party: Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles (IN2017-V01): Post-survey report, Research School of Earth Sciences, Australian National University, Canberra, https://doi.org/10.4225/13/5acea64c48693, 2018. 
Behrens, B., Miyairi, Y., Sproson, A. D., Yamane, M., and Yokoyama, Y.: Meltwater discharge during the Holocene from the Wilkes subglacial basin revealed by beryllium isotope analysis of marine sediments, J. Quaternary Sci., 34, 603–608, https://doi.org/10.1002/jqs.3148, 2019. 
Bijl, P. K.: SH655 dinocyst surface sediment database, Zenodo [data set], https://doi.org/10.5281/zenodo.6786422, 2022. 
Bijl, P. K., Houben, A. J. P., Hartman, J. D., Pross, J., Salabarnada, A., Escutia, C., and Sangiorgi, F.: Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 2: Insights from Oligocene–Miocene dinoflagellate cyst assemblages, Clim. Past, 14, 1015–1033, https://doi.org/10.5194/cp-14-1015-2018, 2018a. 
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Short summary
Dinoflagellate cysts can be used to infer past oceanographic conditions in the Southern Ocean. This requires knowledge of their present-day ecologic affinities. We add 66 Antarctic-proximal surface sediment samples to the Southern Ocean data and derive oceanographic conditions at those stations. Dinoflagellate cysts are clearly biogeographically separated along latitudinal gradients of temperature, sea ice, nutrients, and salinity, which allows us to reconstruct these parameters for the past.