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Documents disponibles écrits par cet auteur (5)
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Article
N. Brion, Auteur ; G. Billen, Auteur ; L. Guezennec, Auteur ; A. Ficht, AuteurThe distribution of nitrification has been measured with the H(14)CO(3)(-) incorporation method in the Seine River and its estuary during summer conditions. The Seine River below Paris receives large amounts of ammonium through wastewater discha[...]
Article
S. Even, Auteur ; B. Thouvenin, Auteur ; N. Bacq, Auteur ; G. Billen, Auteur ; J. Garnier, Auteur ; L. Guezennec, Auteur ; S. Blanc, Auteur ; A. Ficht, Auteur ; P. Le Hir, AuteurWithin the framework of the European Water Framework Directive, the Seine- Normandie Water Agency has defined prospective scenarios describing possible trends of evolution of the pressures on water resources. In order to evaluate the resulting w[...]
Article
J. Garnier, Auteur ; P. Servais, Auteur ; G. Billen, Auteur ; M. Akopian, Auteur ; N. Brion, AuteurEcological processes driving the oxygen budget were investigated in the downstream part of the Seine River and its estuary. Phytoplankton and bacterio plankton production were measured along longitudinal profiles (11 to 17 stations) in a range o[...]
Article
G. Billen, Auteur ; J. Garnier, Auteur ; A. Ficht, Auteur ; C. Cun, AuteurThe unique database of water quality measurements made in the Seine estuary over 45 years by the Service de la Navigation de la Seine at Rouen is used here to reconstruct the evolution of oxygen status in the estuary and the nutrient fluxes to t[...]
Article
G. Billen, Auteur ; J. Garnier, AuteurA new version of the 'Riverstrahler' model has been developed for modelling riverine transfers of nitrogen from diffuse sources within the watershed, using land use data as a forcing function, together with an adjustable riparian transfer coeffi[...]
