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    Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf

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    Traykovskietal_CSR1505_WHOAS.pdf (1.049Mb)
    Date
    2006-11-14
    Author
    Traykovski, Peter A.  Concept link
    Wiberg, Patricia L.  Concept link
    Geyer, W. Rockwell  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/1575
    As published
    https://doi.org/10.1016/j.csr.2005.07.008
    Keyword
     Po River; Adriatic Sea; Sediment transport; Turbidity currents; Fluid mud 
    Abstract
    A mooring and tripod array was deployed from the fall of 2002 through the spring of 2003 on the Po prodelta to measure sediment transport processes associated with sediment delivered from the Po River. Observations on the prodelta revealed wave-supported gravity flows of high concentration mud suspensions that are dynamically and kinematically similar to those observed on the Eel shelf (Traykovski et al., 2000). Due to the dynamic similarity between the two sites, a simple one-dimensional across-shelf model with the appropriate bottom boundary condition was used to examine fluxes associated with this transport mechanism at both locations. To calculate the sediment concentrations associated with the wave-dominated and wave-current resuspension, a bottom boundary condition using a reference concentration was combined with an “active layer” formulation to limit the amount of sediment in suspension. Whereas the wave-supported gravity flow mechanism dominates the transport on the Eel shelf, on the Po prodelta flux due to this mechanism is equal in magnitude to transport due to wave resuspension and wind-forced mean currents in cross-shore direction. Southward transport due to wave resuspension and wind forced mean currents move an order of magnitude more sediment along-shore than the downslope flux associated wave-supported gravity flows.
    Description
    Author Posting. © The Authors, 2006. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Continental Shelf Research 27 (2007): 375-399, doi:10.1016/j.csr.2005.07.008.
    Collections
    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Preprint: Traykovski, Peter A., Wiberg, Patricia L., Geyer, W. Rockwell, "Observations and modeling of wave-supported sediment gravity flows on the Po prodelta and comparison to prior observations from the Eel shelf", 2006-11-14, https://doi.org/10.1016/j.csr.2005.07.008, https://hdl.handle.net/1912/1575
     

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