open boundary condition. The time at which the maximum * occurs, 

 shovm at the top of the figures, introduces the time scale as another 

 factor to be considered. In addition, the results shown in Table 4 

 indicate that the magnitude of * decreases with increasing storm 

 forward speed. Accordingly, there appears to be no simple resolution 

 to the question of what is the proper open boundary condition for 

 limited area coastal surge models. A possible pragmatic solution is 

 to use the time sequence of water levels at each grid point along the 

 shelf break obtained from an a priori simulation covering the entire 

 basin. 



190 



