biogeochemical processes within the Arctic Ocean, as well as how these are linked to the Atlantic Ocean. AWI scientists are developing the world’s first multi- resolution Ocean General Circulation Biogeochemical [...] built up. Data assimilation into coupled ecosystem- ocean-ice models will enable the identification of phytoplankton variability and trends of surface-ocean processes and their bio-physical coupling. Remote [...] Sensing (Graphic: Alfred-Wegener-Institut) Modelling To predict upcoming changes in global ocean circulation, ocean productivity, and the consequences for the global climate system, it is crucial to improve