417. It is recognized that every new application adds a new challenge 

 to the art of shoreline simulation and that it is not possible to follow 

 completely a set pattern or operating procedure. At the same time, however, 

 modeling experience produces growth in this highly complex and integrated 

 process, with each new application better preparing the modeler for the next. 

 Therefore, the case study was presented with the dedication that it will point 

 newcomers in the proper direction to analyze correctly other coastal protec- 

 tion problems. 



418. The case study demonstrates that the modeling system GENESIS is 

 highly effective for simulating the influence of waves and coastal structures 

 on the long-term evolution of sandy beaches and that the system is capable of 

 serving as an engineering tool for evaluating shore protection projects. The 

 case study also emphasizes the importance of analyzing and understanding the 

 input data and coastal processes in the region and at the project. Among the 

 various factors entering a modeling project, all possible ingenuity and 

 industry must be applied to develop correct input wave time series and 

 boundary conditions. A lesson learned from the case study is the fragility of 

 the modeling system to errors in the input data. 



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