The 7th Annual Meeting on High Performance Computing and Infrastructure in Norway

NOTUR2008 - ABSTRACTS

Marin ecosystem modelling and parallel computing

Dag Slagstad

Marine ecological modelling faces several challenges besides transforming process knowledge into numerical models. Unlike the situation for hydrodynamic models, there is no fixed set of equations (Navier-Stokes) that the model is based on, and the ecological model equations used is usually different from application to application. Ecosystems are complex and highly nonlinear. As more complex questions are asked, an increasing number of species or functional groups are included in the models. In addition, the internal state of each functional group is often needed to make reliable predictions. Climate related simulations puts an additional requirement for computer resources as simulation periods often are of order 100 years. Examples of coupled hydrodynamic and ecosystem models and their use in coastal and oceanic regions will be presented.

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