A Southern Ocean driver of atmospheric CO2

Thomas Ronge1, Walter Geibert1, Jörg Lippold2, Frank Lamy3, Bernhard Schnetger4 and Ralf Tiedemann3, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)Heidelberg University, Heidelberg, Germany, (3)AWI Bremerhaven, Bremerhaven, Germany, (4)Microbiogeochemistry Research Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany