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Monitoring water quality in estuarine environments: lessons fromthe MAGEST monitoring program in the Gironde fluvial-estuarinesystem

Etcheber, H and Schmidt, S and Sottolichio, A and Maneux, E and Chabaux, G and Escalier, J.-M and Wennekes, H and Derriennic, H and Schmeltz, M and Quéméner, L and Repecaud, M and Woerther, P and Castaing, P (2011) Monitoring water quality in estuarine environments: lessons fromthe MAGEST monitoring program in the Gironde fluvial-estuarinesystem. Hydrology and Earth System Sciences.

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    The Gironde Estuary, one of the largest European ones, presents temporary low dissolved oxygen content in its fluvial section close to the Bordeaux urban area. In a context of population growth and of long-term environmental changes, the development of a high-frequency monitoring programme of the fluvial-estuarine system of the Gironde, called MAGEST (MArel Gironde ESTuary), had appeared essential to address current and future water-quality issues/evaluations. The objectives of the MAGEST survey program are to establish a reference database to improve the knowledge of the Gironde Estuary functioning, encompassing the aspects of hydrology, sediment dynamics and biogeochemistry. Through examples of results from intratidal to seasonal time scales, we demonstrate how such a long-term, high-frequency monitoring of a fluvio-estuarine system is of valuable interest to extract the main trends of its functioning and of the water quality in relation to external forcings (climatology, urban wastes, land use, . . . ) and to predict the future evolution of an estuary with global and environmental changes.

    Type du document: Article
    Sujets: Articles > Geosciences
    Divisions: UNSPECIFIED
    Déposé par: Editeur UVT
    Date de dépôt: 30 Mar 2011 16:07
    Dernière modification: 30 Mar 2011 16:07

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