La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Modeling of cadmium speciation and dynamics in the Seine estuary (France)
Auteurs :	J. L. Gonzalez, Auteur ; B. Thouvenin, Auteur ; C. Dange, Auteur ; A. Fiandrino, Auteur ; J. F. Chiffoleau, Auteur
Type de document :	Article
Dans :	Estuaries (24(6B) DEC 2001)
Article en page(s) :	1041-1055
Résumé :	A complexation model (MOCO) was used to describe cadmium (Cd) speciation during estuarine transit in the Seine estuary. This model was developed from field data. Laboratory experiments based on the use of Cd-109 enabled checking of certain model simplifications and hypotheses and evaluation of parameters which could not be measured directly. MOCO was coupled with a 3D multivariable hydrosedimentary model (SAM3D) to simulate Cd dynamics in the estuary. These results were compared with measurements (dissolved and particulate Cd) obtained during cruises representative of various hydrodynamic conditions. The purpose of this article is to present the modeling approach used, and its expected applications and limits.

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