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Cartographie du Middelkerke Bank: dynamique sédimentaire, structure géologique, facies sédimentaires OMA
Lanckneus, J.; De Moor, G.; Berné, S.; Chamley, H.; De Batist, M.; Henriet, J.-P.; Terwindt, J.; Trentesaux, A..
The paper analyses the first results obtained in the framework of the RESECUSED project (MAST) whose objectives are the detailed analysis of the behaviour of sediments and bedforms of and on the Middelkerke Bank (Belgian Continental Shelf) and the study of the interaction between water movement, sediment transport and bedform mobility. The results include a preliminary analysis of the residual bottom load transport paths deduced from side scan sonar registrations, a map of the sandwaves on the bank, the first grain-size results of the superficial sediment and a study on the internal structure of the bank.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bed forms; Continental shelves; Grain size; Granulometry; Sand waves; Sediment dynamics; Sediment transport; Shelf facies; Side scan sonar.
Ano: 1991 URL: http://www.vliz.be/imisdocs/publications/262327.pdf
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Modelling sand resuspension by waves over a rippled bed OMA
Trouw, K.; Williams, J.J.; Rose, C.P..
With a two-dimensional <i>Kappa-Epsilon</i>-model and equations to describe sediment entrainment, diffusion, convection and settling, wave-induced flow velocities and sediment concentration fields over rippled beds have been calculated. Results from the simulations are compared with time-averaged vertical suspended sediment concentration profiles, C-profiles, measured in a large wave flume using the autonomous multi-sensor instrument STABLE. The simulations make it possible to examine in detail the mechanisms of sediment entrainment, vortex formation and advection. The resulting animations of model output allow a quasi-3-D visualization of sediment resuspension processes and aid quantification of the resulting vertical suspended sediment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bed forms; Hydraulic models; Ocean floor; Resuspension; Sand; Sand ripples; Suspended particulate matter; Vertical profiles.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7390
Registros recuperados: 2
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