To investigate the combined impacts of changing climate and nutrient load reduction scenarios on the Baltic Sea and the North Sea, an existing high-resolution three-dimensional coupled biogeochemical-physical ocean model of the Baltic Sea and North Sea will be further developed. The present model describes mainly the dynamics of the nitrogen and phosphorus, three groups of phytoplankton and oxygen and the model sediment, includes process descriptions for nutrient regeneration as well as denitrification and permanent burial of nutrients. A Wave-model and wave-current interaction is used to improve the simulation of horizontal transports of organic nutrients due to sediment resuspension. The model will be used to assess climate variability of the past 100 years and to study the impact of future climate ecosystem at the end of the 21st century. Also pale climate studies will be performed. A significant part of the working time will be filled by project management and research administration.
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