Along the shoreline where river inflow or outflow may occur, the 

 conditions are: 



u = u (x, y, o); V = V (x, y, o); u^O; 



T = T (x. y, a); S = S (x, y, o) (2.33) 



Along the open boundaries, either the surface elevation y is specified as a 

 function of time and time, or the normal gradient of q is set to zero: 



C = C (x, y, t) or ^ = ; (2.34) 



on 



/jm 3v\ 

 \dn ' 3ny 



= or u = u (x, y, o, t); v = v (x, y, o, t) (2.35) 



The exact form of the open boundary condition depends on the relative 

 importance of the various forcings including tides, winds, and baroclinic 

 effects. Open boundary conditions will be discussed further in the realistic 

 simulations of the coastal currents. 



36 



