CSDMS 2020 Webinars

CSDMS Summer Science Series I: Variability in Marsh-Estuarine Sediment Exchanges in Back-Barrier Systems: Barnegat Bay, New Jersey

Julia Moriarty

University of Colorado, United States

Exchanges of sediment between marshes and estuaries affect coastal geomorphology, wetland stability and habitat, but can be difficult to predict due to the many processes that influence dynamics in these systems. This study uses a modeling approach to analyze how spatially variability in marsh-edge erosion, vegetation, and hydrodynamic conditions affect sediment fluxes between marshes and estuaries in Barnegat Bay, New Jersey. Specifically, the three-dimensional Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) numerical model was used. Model results showed that marsh-estuarine sediment fluxes varied spatially due to changes in wave thrust, currents, and sediment availability.

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Of interest for:
  • Coastal Working Group
  • Coastal Vulnerability Initiative
  • Continental Margin Initiative