Studying the Southern Ocean to predict climatic changes
Within the world’s oceans, the Southern Ocean takes up more CO2 than any other body of water. The Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) contribute to the uptake and storage of anthropogenic gases like CO2. The EU-funded SO-CUP project seeks to identify and quantify the processes that control the amount of inorganic carbon that is subducted with the SAMW/AAIW. It will integrate the use of recent in situ observations from biogeochemical Argo floats and a state-of-the-art data-assimilating, high-resolution coupled biogeochemical–physical ocean model (B-SOSE). By shedding light on the ventilation and carbon uptake processes in the Southern Ocean, the project will help predict their response to ongoing and future climatic changes.