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Nearshore sediment transport processes due to moderate hydrodynamic conditions
Eitner, V.; Kaiser, R.; Niemeyer, H.D. (1996). Nearshore sediment transport processes due to moderate hydrodynamic conditions, in: De Batist, M. et al. (Ed.) Geology of siliciclastic shelf seas. pp. 267-288
In: De Batist, M.; Jacobs, P. (Ed.) (1996). Geology of siliciclastic shelf seas. Geological Society Special Publication, 117. The Geological Society (London): London. ISBN 1-897799-67-5. 345 pp., more
In: Hartley, A.J. et al. (Ed.) Geological Society Special Publication. Geological Society of London: Oxford; London; Edinburgh; Boston, Mass.; Carlton, Vic.. ISSN 0305-8719; e-ISSN 2041-4927, more
Keyword
    Marine/Coastal
Authors  Top 
  • Eitner, V.
  • Kaiser, R.
  • Niemeyer, H.D.
Abstract
    On the beach of the island of Nordemey sedimentological, morphological and hydrodynamic measurements have been carried out in order to investigate sediment transport processes in the course of a tidal cycle which was characterized by moderate hydrodynamic conditions. Wave heights varied between 0.3 and 0.5 m. An area of 90 m2 within a groyne field was surveyed. Sediments samples were taken on a 5 m grid at low tide. Sediment flux was determined at each sampling site by means of depth-of-activity rods. The grain size distributions of the sediment samples were determined by dry sieving. Under the prevailing hydrodynamic conditions a landward sediment transport was observed. The mainly negative sediment budget in the seaward section and the landward directed distribution of fluorescent sediment tracers suggest a dominant onshore transport during the investigated tidal cycle. This is also reflected in the changes observed in sediment textures.
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