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	Provedor de dados ArchiMer (2) Autor Auffret, J (1) Ehrhold, Axel (1) Garlan, T (1) Greene, Hg (1) Guillou, Sylvain (1) Mcrea, Je (1) Nguyen, K (1) O'Connell, Vm (1) Wakefield, Ww (1) Mais... Palavra-chave Sidescan (2) Baie du Mont Saint Miche (1) Balayage (1) Bedload transport (1) Cartographie (1) Débit massique (1) Habitat (1) Hydrodynamic model (1) Mapping (1) Megahabitat (1) Mesohabitat (1) Modèle hydrodynamique (1) Mont Saint Michel bay (1) Mégahabitat (1) Mésohabitat (1) Sediment (1) Sonar latéral (1) Sédiment (1) Mais... Tipo do documento Text (2) Ano 2003 (1) 1999 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Mapping marine habitats with high resolution sidescan sonar ArchiMer Mcrea, Je; Greene, Hg; O'Connell, Vm; Wakefield, Ww. The application of marine geophysics and GIS techniques to the characterization of benthic habitats has increased the ability of fisheries managers to assess distribution and habitat types beyond common practices. We report upon a 150 kHz sidescan sonar survey offshore of Kruzof Island, Alaska undertaken to characterize rockfish (Sebastes) habitat. Using GIS, MapGrafix and Map*Factory we determined the percentage of seafloor cover that exists in our survey area. Bathymetry in the study area was determined with sidescan interferometry. All XYZ data were gridded using Surfer and plotted in shaded relief, bathymetric contour, and 3-dimensional formats. Contoured bathymetry was used as an overlay in MapGrafix. Small sub-areas were extracted from the... Tipo: Text Palavras-chave: Habitat; Mégahabitat; Mésohabitat; Balayage; Cartographie; Habitat; Megahabitat; Mesohabitat; Sidescan; Mapping. Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43591/44031.pdf Modélisation des flux sédimentaires charriés dans la baie du Mont-Saint-Michel (Manche, France) ArchiMer Ehrhold, Axel; Guillou, Sylvain; Auffret, J; Garlan, T; Nguyen, K. A study of the sediment bedload in the Mont-Saint-Michel bay is presented here. It combines the use of a 2DH numerical model and a pattern of sediment bedload transport established on the analysis of the statements of sidescan imagery combined with a dense groundwork of sedimentary grab samples. Results show the role of tidal currents asymetry in the realistic bioclastic sand transfert from the subtidal environment to the coast and the divergence of sedimentary dynamic between the maritime bay to the West and the tidal delta to the East. This in-shore transfer is responsable of the Holocene prism construction. The model reproduces tidal sedimentary dynamics with the immediate surroundings of the Mont-Saint-Michel. It shows the interest of the modeling of... Tipo: Text Palavras-chave: Mont Saint Michel bay; Sediment; Sidescan; Bedload transport; Hydrodynamic model; Baie du Mont Saint Miche; Sédiment; Sonar latéral; Débit massique; Modèle hydrodynamique. Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-522.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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