initial perturbation of tjq before the maximum peak surge is retained, 

 but is reduced on the order of 30 %. Changes in the maximum peak 

 surge at the coast are shown in Table 3. The magnitudes of tjq 

 (JtjqI), determined at the time of the maximum peak at the coast, are 

 shown in column 5. The differences of [tjqI between each pair of 

 simulations are shown in column 6. The superscript plus or minus 

 indicates whether |7Jq| obtained from the simulations with the 

 radiation condition is larger or smaller with respect to the former 

 result. The differences in |jjq| are clearly responsible for the 

 changes in maximum peak surge at the coast. 



d) Limited area model 



Results obtained from the simulations of the hurricanes of 

 record and the synthetic storms strongly indicate close correlation 

 between the generation of a simultaneous Gulf-wide oscillation and 

 the net periodic volume transport through the ports. It is of 

 interest, therefore, to determine whether tjq still exists in the 

 absence of wind stress in the deep water, including Florida and 

 Yucatan Straits. Therefore, simulations of HUR5, HUR23 and hurricane 

 Carla were repeated with a modified wind field where the wind 

 stresses are set to zero everywhere in the deep water (water depth 

 greater than the upper layer thickness). The continental shelf 

 regions of these modified HUR5, HUR23 and Carla resemble limited area 

 coastal or shelf surge models. In the following discussion these 

 models are referred to as limited area models and their designated 

 names are followed by (L). 



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