Biogeochemistry in Coastal Seas

Chemistry Transport Modelling

Resulting from anthropogenic activities a number of pollutants are emitted into the atmosphere. These activities include in particular burning of fossil and non-fossil fuels, agriculture and the use of chemicals. In the atmosphere these substances may be transported over large distances, chemically modified and finally removed from the atmosphere by dry and wet deposition. Many substances are harmful for humans, animals and plants in high concentrations. Other substances are transported via the atmosphere and then deposited into sensitive eco systems.

Complex three dimensional model systems are the tools that scientist in the working group on chemistry transport modelling use to investigate emissions, transport and fate of pollutants, nutrients and long-living chemicals in the atmosphere. The models are applied to reconstruct past conditions as well as to evaluate scenarios for the future. Regionally, the North and Baltic Seas and their costal regions are of particular interest. Ship emissions have become more and more important as a source of pollutants in marine environments. Since several years they are in the focus of the research.