A systematic bias in float pH leads to overestimation of derived pCO2 and underestimation of carbon uptake by the Southern Ocean

Chuqing Zhang1, Yingxu Wu2, Peter Brown3, Amavi Silva1, David Stappard1 and Toby Tyrrell4, (1)University of Southampton, Southampton, United Kingdom, (2)Polar and Marine Research Institute, Jimei University, Xiamen, China, Xiamen, China, (3)National Oceanography Center, Southampton, United Kingdom, (4)Univ Southampton, Southampton, United Kingdom