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	Provedor de dados ArchiMer (4) Autor Dufois, Francois (2) Barbin, Y. (1) Bennis, Anne-claire (1) Benoit, L. (1) Garreau, Pierre (1) Gloaguen, Pierre (1) Le Hir, Pierre (1) Lopez, G. (1) Mahevas, Stephanie (1) Marié, Louis (1) Rivot, Etienne (1) Sentchev, A. (1) Vermard, Youen (1) Woillez, Mathieu (1) Mais... Palavra-chave MARS 3D (4) Golfe du Lion (2) Alderney Race (1) Contraintes de fond (1) Contraintes de peau (1) Courants (1) Gulf of Lions (1) HF radar (1) High-frequency radar (1) Houles (1) Hydrodynamic (1) Hydrodynamique (1) Modelling (1) Modélisation (1) Obsmer (1) Prodelta du Rhône (1) Radionuclides (1) Radioéléments (1) Rhône prodelta (1) Sediment (1) Mais... Tipo do documento Text (4) Ano 2020 (1) 2016 (1) 2008 (1) 2006 (1) País France (4) Idioma Francês (2) Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Is speed through water a better proxy for fishing activities than speed over ground? ArchiMer Gloaguen, Pierre; Woillez, Mathieu; Mahevas, Stephanie; Vermard, Youen; Rivot, Etienne. Understanding fishing vessel dynamics at a fine spatial scale is of great interest for defining appropriate spatial management plans. Different models have been developed to detect fishing activity from Vessel Monitoring System (VMS) data. While mathematical and statistical methods differ, all rely on the idea that vessel speed over ground provides information on fishing vessel activity. However, trawling with constant speed relative to the water mass may as well prove a winning strategy for both technical (to ensure sufficient trawl opening) and biological (to limit escapement of fish) reasons. Therefore, considering speed through water instead of speed over ground might provide insights into fishing activities. We developed a method combining surface... Tipo: Text Palavras-chave: Vessel monitoring system surface currents hidden Markov models; MARS 3D; Obsmer. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00359/47030/46948.pdf Modélisation du transport particulaire dans le Golfe du Lion en vue d'une application au devenir des traceurs radioactifs issus du Rhône ArchiMer Dufois, Francois. Among the contaminants introduced into the environment, the artificial radionuclides appear particularly important to take into account because of their chemical toxicity and/or of their radiotoxicity. Some radionuclides present a high affinity with particles so that the study of the sediment dynamics is a useful preliminary to the study of their dispersion on the open sea. This thesis is focused on the fate of sediments in the Gulf of Lions (NW Mediterranean) and in particular on the impact of the Rhone River, which is the main source of particulate matter in the Gulf of Lions. In order to study the sediment transport mechanisms on various space and time scales, this thesis is based on mathematical modelling. The hydro-sedimentary model set up in the Gulf... Tipo: Text Palavras-chave: Waves; MARS 3D; Hydrodynamic; Radionuclides; Modelling; Sediment; Rhône prodelta; Gulf of Lions; Vagues; MARS 3D; Hydrodynamique; Radioéléments; Modélisation; Sédiment; Prodelta du Rhône; Golfe du Lion. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/these-6308.pdf Contraintes de fond dans le Golfe du Lion générées par les houles et les courants ArchiMer Dufois, Francois; Garreau, Pierre; Le Hir, Pierre. Simulated data of both currents and waves for the entire year 2001 are used in order to assess their statistical contribution to the erodability power over the shelf of the Gulf of Lion. Bottom circulation patterns are also analysed in response to wind forcing. A method to compute the skin friction component of the total bottom shear stress is then proposed and compared with a classical method. Tipo: Text Palavras-chave: MARS 3D; Golfe du Lion; Contraintes de peau; Contraintes de fond; Courants; Houles. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-6306.pdf Surface currents in the Alderney Race from high-frequency radar measurements and three-dimensional modelling ArchiMer Lopez, G.; Bennis, Anne-claire; Barbin, Y.; Sentchev, A.; Benoit, L.; Marié, Louis. Two weeks of high-frequency radar measurements collected at the Alderney Race are compared with the results of a three-dimensional fully coupled wave–current model. Spatial current measurements are rare in this site, otherwise well investigated through modelling. Thus, the radar measurements offer a unique opportunity to examine the spatial reliability of numerical results, and can help to improve our understanding of the complex currents in the area. Comparison of observed and modelled surface current velocities showed a good agreement between the methods, represented by root mean squared errors ranging from 14 to 40 cm s−1 and from 18 to 60 cm s−1 during neap and spring tides, respectively. Maximum errors were found in shallow regions with consistently... Tipo: Text Palavras-chave: HF radar; Surface current; Alderney Race; MARS 3D; WW3; High-frequency radar. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00643/75516/78391.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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