Suspended Sediment and Seabed Modifications Driven by Energetic Waves and a Strong Coastal Current
نویسنده
چکیده
Estimates of sediment concentrations and flux in coastal oceans can help predict optical and acoustical water properties, interpret remotely sensed coastal data, and characterize seafloor morphology. Predicting turbidity requires that we account for processes that erode, supply, and redistribute sediment; including storms, floods, winds, tides, and energetic waves. In many environments, particularly estuaries and offshore of river mouths, doing so requires that we consider both horizontal and vertical flux gradients. Including advances in sediment transport dynamics and bottom boundary layer structure within three-dimensional transport models should improve our ability to predict turbidity, sediment flux, and erosion and deposition.
منابع مشابه
Interactions of Waves, Tidal Currents and Riverine Outflow and their Effects on Sediment Transport (RIVET II)
Studying the mixing of riverine freshwater and coastal water is the fundamental step to further understand the balance of a coastal/estuarine ecosystem (e.g., Hickey et al. 2010), seabed properties, sediment budgets (Gelfenbaum & Kaminsky 2010), and the sustainable management of the fluvial-estuary habitat (e.g., damming, dredging). The nearfield of a river plume represents an energetic environ...
متن کاملRemote Sensing of Tidal Situation by Monitoring Changes in Suspended Sediment Concentration in Surface Waters
Collecting information on suspended sediments concentration (SSC) in coastal waters and estuaries is vital for proper management of coastal environments. Traditionally, SSC used to be measured by time consuming and costly point measurements. This method allows the accurate measurement of SSC only for a point in space and time. Remote sensing from air-borne and space-borne sensors have proved to...
متن کاملDispersal of Fine Sediment in the Coastal Ocean: Sensitivity to Aggregation and Stratification
By improving numerical representations of coastal circulation, sediment properties, and waves, we seek to develop reliable estimates of sediment concentration, transport and deposition. Efforts to include sediment transport calculations within three-dimensional numerical hydrodynamic models can increase our ability to predict suspended sediment concentrations, water column turbidity, and seabed...
متن کاملA General Formula for Noncohesive Suspended Sediment Transport
CAMENEN, B. and LARSON, M., 2008. A general formula for noncohesive suspended sediment transport. Journal of Coastal Research, 24(3), 615–627. West Palm Beach (Florida), ISSN 0749-0208. A simple and robust suspended load transport formula for noncohesive sediment is presented for application to river, estuarine, and coastal environments with the use of depth-averaged models. The formula is base...
متن کاملWind-driven Sediment Suspension Controls Light Availability in a Shallow Coastal Lagoon
Light availability is critically important for primary productivity in coastal systems, yet current research approaches may not be adequate in shallow coastal lagoons. Light attenuation in these systems is typically dominated by suspended sediment, while light attenuation in deeper estuaries is often dominated by phytoplankton. This difference in controls on light attenuation suggests that phys...
متن کامل