Abstract
Essentially brought by the Aulne and Elorn rivers, fine sediments are redistributed within the bay of Brest and its surroundings mainly by tidal currents. Their dynamic is studied with a hydro-sedimentary numerical model based on the two-dimensional horizontal (2DH) modules of the TELEMAC system. The sedimentary assemblage is treated as a number of components of different grain sizes, some of which may be cohesive, and biotic factors related to the large presence on the bed of the invading slipper limpets Crepidula fornicata are integrated. A special approach consisting in solving the advection-diffusion equation with multi-zone marked fine sediments to evaluate their relative contribution to suspended and deposited sediment concentration is presented herein. This Eulerian sediment tracing method is promising for evaluating exchanges between sedimentary units according to hydraulic (low flow, flood) and hydrodynamic (neap, spring) conditions under various scenarios.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
