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	Provedor de dados ArchiMer (2) Autor Dadou, Isabelle (1) Dumas, Franck (1) Fraysse, Marion (1) Garcon, Véronique (1) Huret, Martin (1) Lazure, Pascal (1) Pairaud, Ivane (1) Pinazo, Christel (1) Ross, Oliver N. (1) Mais... Palavra-chave Biogeochemical modelling (2) Chlorophyll (1) Continental shelf (1) Gulf of Lion (1) Intrusion (1) Northern Current (1) Physical (1) Primary production (1) Regime shift (1) Rio de la Plata (1) River plumes (1) SeaWiFS (1) Mais... Tipo do documento Text (2) Ano 2016 (1) 2005 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Coupling physical and biogeochemical processes in the Rio de la Plata plume ArchiMer Huret, Martin; Dadou, Isabelle; Dumas, Franck; Lazure, Pascal; Garcon, Véronique. A coupled three-dimensional physical-biogeochemical model was developed in order to simulate the ecological functioning of the Rio de la Plata estuary and plume. The biogeochemical model reproduces the nitrogen cycle between five compartments: dissolved inorganic nitrogen, phytoplankton, zooplankton, detritus and dissolved organic nitrogen. The coupling is tested in seasonal climatological configurations and for the particular year 1999. The circulation is forced with Parana and Uruguay rivers discharges, NCEP wind and tide. The biogeochemical model includes loads of inorganic and organic nitrogen from both rivers. The model reproduces the correct tidal amplitudes in the estuary, as well as the most outstanding features of the observed horizontal and... Tipo: Text Palavras-chave: Rio de la Plata; SeaWiFS; Primary production; Chlorophyll; River plumes; Biogeochemical modelling; Physical. Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-334.pdf Impact of an intrusion by the Northern Current on the biogeochemistry in the eastern Gulf of Lion, NW Mediterranean ArchiMer Ross, Oliver N.; Fraysse, Marion; Pinazo, Christel; Pairaud, Ivane. We present the results from the RHOMA2011-LEG2 campaign that took place in the eastern Gulf of Lion from 7 to 17 Oct 2011 and combine them with remote sensing observations and results from a 3D coupled hydrodynamic-biogeochemical model to study an intrusion event of the Northern Current (NC) onto the continental shelf in the Gulf of Lion (NW Mediterranean). Our analysis shows that during the intrusion, the previously upwelled nutrient-rich water present on the shelf is replaced by warmer and mostly oligotrophic NC water within a matter of 2–3 days. This has a marked impact on the local biogeochemistry in the Gulf with pre-intrusion Chl-a concentrations in the surface layer of over 0.5 mg m−3 dropping to near the detection limit within less than 72 h. The... Tipo: Text Palavras-chave: Northern Current; Gulf of Lion; Intrusion; Continental shelf; Biogeochemical modelling; Regime shift. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00302/41359/40644.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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