Source to coast pollutants distribution in Tangier area : Arc GIS interpolation and finite element methods

الملخص EN

This work attempts a contribution for studying marine pollution from a numerical point of view and aims to o er some solutions for the preservation of marine environment.

For more reliability, Tangier bay (North of Morocco) was chosen as a study area.

We underline that the main topic of this paper deals with numerical simulation and interpolation of hydrocarbons and heavy metals concentrations; both of these harmful pollutants are spilled into Tangier bay.

We de ne a mathematical model built on a system of Navier-Stokes and convection-dispersion equations in order to estimate contaminant concentration by a nite element method using FreeFem++ software.

Otherwise, we perform a spatial interpolation for heavy metals concentrations in order to take into account actual data and to validate numerical tests.

Finally, the paper exhibits results from both nite element and Arc GIS interpolation methods, and it is a continuation of some of our published works.