Speaker: Xiaoting Yang
Xiaoting discuss "Southern Ocean carbon-wind stress feedback". During the disucssion, Xiaoting will lead us through the following key points:
(1) The intensification of westerlies over the Southern Ocean which is the largest carbon sink in the climate system can reduce or even reverse the carbon sink.
(2) A simple equilibrium mixed layer carbon budget demonstrates that the partial pressure of CO2 in the Southern Ocean varies as the square root of wind stress, vertical mixing at the base of mixed layer as dominant player.
(3) The possible strengthening of surface stratification and eddy activities may reduce the sensitivity of PCO2 in Southern Ocean to wind stress