Stephanie Lim^1,2, Sebastien Moreau², Martin Vancoppenolle³, Florian Deman⁴, Arnout Roukaerts⁴, Klaus Meiners^5,6, Julie Janssens^2,6 and Delphine Lannuzel^2,6, (1)Scripps College, Claremont, CA, United States, (2)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (3)CNRS, LOCEAN-IPSL, Université Pierre et Marie Curie, Paris, France, (4)Vrije Universiteit Brussel, Analytical, Environmental and Geo-Chemistry, Ixelles, Belgium, (5)Australian Antarctic Division, Department of the Environment, Kingston, ACT, Australia, (6)Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS, Australia