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Sediment dynamics and hydrodynamics on the inner part of the Aquitanian shelf (France) : Preliminary results
Michel, D.; Howa, H.; Thomas, C.; Chapalain, G.; Thais, L.; Malengros, D. (2000). Sediment dynamics and hydrodynamics on the inner part of the Aquitanian shelf (France) : Preliminary results, in: Trentesaux, A. et al. Marine Sandwave Dynamics, International Workshop, March 23-24 2000, University of Lille 1, France. Proceedings.
In: Trentesaux, A.; Garlan, T. (Ed.) (2000). Marine Sandwave Dynamics, International Workshop, March 23-24 2000, University of Lille 1, France. Proceedings. Université de Lille 1: Lille. ISBN 2-11-088263-8. 240 pp., more
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Document type: Conference paper
Keyword
    Marine/Coastal
Authors  Top 
  • Michel, D.
  • Howa, H.
  • Thomas, C.
  • Chapalain, G.
  • Thais, L.
  • Malengros, D.
Abstract
    Inner shelves constitute a zone of transition where large quantities of sediments are stored. Sediment exchanges occurring within these zones are of primary importance considering the evolution of neighbouring areas (i.e. continental shelf and intertidal zone). The aim of this study is to understand the morphodynamics of the inner shelf and the connections prevailing with adjacent zones: i) the shoreface and the beach; and ii) the external shelf. We focus on the aquitanian shelf constituted of the accumulation of terrigenous clastic material exhibiting a well developed system of nearshore longshore bars. Bathymetric surveys permit to describe the morphology of the bedforms located on the shoreface. Hydrodynamic measurements of tide- and waves- generated currents were carried out. Sediment dynamics is determined using the Gao and Collins procedure (1992) and through direct measurements.
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