Author(s)

E. KockRasmussen, I. SehestedHansen, A.C. Erichsen, D. Muhlenstein & J. Dorge

Abstract

3D model system for hydrodynamics, eutrophication and nutrient transport E. Kock Rasmussen, I. Sehested Hansen, A.C. Erichsen, D. Muhlenstein & J. D0rge DHI- Water and Environment, Denmark Abstract The existing MIKE 3 model system consisting of modules for hydrodynamics and eutrophication has been improved to include a description of exchangeable pools of nitrogen (N) and phosphorus (P) in the sediment. It is now possible to make a complete mass balance for N and P in a model area and to make calculations of the transport of nutrients across sections in the model. Besides the new feature the model system is also able to simulate water levels, current fields, concentrations of nutrients, chlorophyll, dissolved oxygen, biomass of eelgrass and benthic macroalgae. The model system has been calibrated (1998) and validated (1997) on a temperate shallow Danish fjord, (Odense Fjord, Funen). The fjord, which covers 64 km^ and has an average depth of 2.5 m, is connected to the sea through

Keywords