LIST OF FIGURES 



Page 



Figure 1.1 - Schematics of dynamic interactions among various 



components of the coastal ecosystem 3 



Figure 1.2 - Mississippi Sound and adjacent coastal areas of the 



Gulf of Mexico 6 



Figure 1.3 - Sedimentary map of the Mississippi Sound and adjacent 



coastal waters 8 



Figure 1.4 - (a) Schematics of a comprehensive sediment transport 



model 9 



(b) Detailed schematics for defining deposition and 



entrainment of sediments 9 



Figure 2.1 - Vertical stretching of the coordinates 30 



Figure 2.2 - Lateral stretching of the coordinates 30 



Figure 2.3 - Staggered numerical grid 32 



Figure 2.4 - (a) Empirical stability functions of vertical 



turbulent eddy coefficients 42 



(b) Stability functions determined from a second-order 



closure model of turbulent transport 42 



Figure 3.1 - Flow chart of the hydrodynamic model 48 



Figure 4.1 - Computer simulation of the Vicksburg Tidal Flume 52 



Figure 4.2 - Vertically-integrated velocities at an instant when c (L,L)=0 

 and c (0,0)=max in an open bight driven by tidal waves along 

 the open boundaries: (a) analytical results, (b) model results 55 



Figure 4.3 - Surface displacements corresponding to conditions in 



Figure 4.2 55 



Figure 4.4 - Comparison between numerically- and analytically-computed 

 dominant time scales of wind-driven currents in a square 

 enclosed basin with varying 6 59 



Figure 4.5 - Surface elevation and near-bottom velocity at selected points 

 in a constant slope enclosed basin driven by uniform wind 

 stress. Comparison among three numerical models 61 



Figure 4.6 - Vertical profile of horizontal velocities at a point. 

 Steady-state results computed by the three-dimensional 

 model with two different boundary conditions 62 



Figure 4.7 - Steady-state velocity field in the enclosed basin. 



Results from three models 64 



