Turbulent and numerical mixing in a salt wedge estuary: Dependence on grid resolution, bottom roughness, and turbulence closure

The Connecticut River is a tidal salt wedge estuary, where advection of sharp salinity gradients through channel constrictions and over steeply sloping bathymetry leads to spatially heterogeneous stratification and mixing. A 3‐D unstructured grid finite‐volume hydrodynamic model (FVCOM) was evaluate...

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Veröffentlicht in:	Journal of geophysical research. Oceans 2017-01, Vol.122 (1), p.692-712
Hauptverfasser:	Ralston, David K., Cowles, Geoffrey W., Geyer, W. Rockwell, Holleman, Rusty C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Advection Barotropic mode Bathymetry Bed roughness Bottom friction Bottom roughness Brackish Closures Constrictions Density stratification Dye dispersion Estuaries Estuarine dynamics estuary Friction Geophysics Gradients Grid refinement (mathematics) High resolution Hydrodynamics Marine Mathematical models numerical mixing numerical model Optimization Propagation Regions Resolution Richardson number Rivers Roughness Salinity Salinity effects Salinity gradients salt wedge Salt wedges Skills Steady state Stratification Three dimensional models Tidal propagation Turbulence turbulence closure Turbulent flow Turbulent mixing
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