Computer Treatment of Partial Differential Equations Arising in Environmental Modelling

The mathematical description of a large-scale air pollution model will be discussed in this paper. The principles used in the selection of numerical methods and in the development of parallel codes will be described. Numerical results, which illustrate the ability of running the fine resolution versions of the model on Sun computers, will be given. Applications of the model in the solution of some environmental tasks will be presented. 1. PDEs arising in environmental modelling Many air pollution models are described mathematically with a system

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