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Location Folder Show Tree ROOT _ScienceBase Catalog __Woods Hole Coastal and Marine Science Center ___U.S. Geological Survey Hydrodynamic Model Simulations ____Idealized Simulations Idealized COAWST model cases for studying the comparison of physical to numerical mixing with different tracer advection schemes in estuarine environments Idealized COAWST numerical model for testing marsh wave thrust and lateral retreat dynamics routines Idealized numerical model for Submerged Aquatic Vegetation (SAV) growth dynamics Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Tarandeep S Kalra Woods Hole Coastal and Marine Science Center U.S. Geological Survey U.S. Geological Survey - ScienceBase Tag Types Theme (1) USGS Scientific Topic Keyword (1) View Results as: JSON ATOM CSV Browse Folder

Idealized COAWST model cases for studying the comparison of physical to numerical mixing with different tracer advection schemes in estuarine environments The numerical simulation of estuarine dynamics requires accurate prediction for the transport of tracers such as temperature and salinity. All numerical models introduce two kinds of tracer mixing: 1) by parameterizing the tracer eddy diffusivity through turbulence models leading to a source of physical mixing and 2) discretization of the tracer advection term that leads to numerical mixing. Both physical and numerical mixing vary with the choice of horizontal advection schemes, grid resolution, and time step. We utilize the Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) model to study the mixing in the model by simulating four idealized cases with three different tracer advection schemes. Tags: Marine Geology, Water Resources, coastal processes, mathematical modeling