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	Provedor de dados ArchiMer (2) Autor Le Fevre, J (2) Birrien, J L (1) Druon, Jean-noel (1) Langlois, G (1) Le Corre, P (1) Morin, P (1) Mais... Palavra-chave 6 degrees W) (1) Bay of Biscay (47 degrees N (1) ECWMF fluxes (1) Internal waves (1) Shelf break (1) Vertical mixing (1) Wind stress (1) Mais... Tipo do documento Text (2) Ano 2001 (1) 1983 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Simulating vertical mixing in a shelf-break region: addition of a shear instability model, accounting for the overall effect of internal tides, on top of a one-dimensional turbulence closure mixed layer model ArchiMer Druon, Jean-noel; Langlois, G; Le Fevre, J. A simple parameterization of eddy diffusivity is used to simulate the shear mixing from tidally induced internal waves generated in the continental slope region southwest of Brittany. Near the edge of the shelf, the seasonal thermocline oscillates under the forcing of the barotropic tide which propagates over the shelf break. A composite model is constructed to simulate the mixing of the upper ocean from both external (wind stress) and internal (internal waves) sources. A simple one-dimensional eddy kinetic energy model, which predicts the temperature profile from heat flux and wind stress inputs, is validated with respect to regional hydroelimatic conditions, then coupled with a two-layer model of non-linear internal waves, to simulate the mixing... Tipo: Text Palavras-chave: 6 degrees W); Bay of Biscay (47 degrees N; ECWMF fluxes; Internal waves; Wind stress; Shelf break; Vertical mixing. Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-5295.pdf The pelagic ecosystem in frontal zones and other environments off the west coast of Brittany ArchiMer Le Fevre, J; Le Corre, P; Morin, P; Birrien, J L. A comparison is attempted between a semi enclosed bay (Rade de Brest), the vicinity of the Ushant tidal thermal front and the Celtic Sea shelf-break, with respect to phytoplankton and zooplankton overall abundance, using dissolved oxygen as a measure of in situ photosynthetic activity. A simple conceptual model, of a type termed agricultural, appears to be applicable to both the Rade de Brest and the shelf-break ecosystems, while the case of the Ushant front seems more complex. Different time constants in basic physical processes are tentatively put forward to account for the differences in ecosystem functional structures. Tipo: Text Ano: 1983 URL: http://archimer.ifremer.fr/doc/00247/35787/34300.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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