Modelled changes in the Southern Ocean Si:N drawdown ratio in the glacial ocean, and their biogeochemical consequences

Ying Ye1, Anna Pagnone1, Tingting Wang1, Sönke Hohn2, Christoph D Voelker1 and Dieter Wolf-Gladrow1, (1)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, (2)Leibniz Centre for Tropical Marine Research, Bremen, Germany