Table 1 



Capabilities and Limitations of GENESIS Version 2.0 



Capabilities 



* Almost arbitrary numbers of groins, jetties, detached breakwaters, beach 

 fills, and seawalls 



* Structures and beach fills in almost any combination 



* Compound structures such as T-shaped groins and spur groins 



* Bypassing of sand around and transmission through groins and jetties 



* Diffraction at detached breakwaters, jetties, and groins 



* Wave transmission through detached breakwaters 



* Coverage of wide spatial extent 



* Offshore input waves of arbitrary height, period, and direction 



* Multiple wave trains (as from independent wave sources) 



* Sand transport produced by oblique wave incidence and by alongshore 

 gradient in wave height 



* Highly automated, numerically stable, and well tested 



Limitations 



* No wave reflection from structures 



* No tombolo development in a strict sense (shoreline not allowed to touch a 

 detached breakwater) 



* Slight restrictions on location, shape, and orientation of structures 



* Basic limitations of shoreline change modeling theory 15 



1) Note: For further information on the theory of shoreline change numerical 

 modeling and GENESIS, see Hanson and Kraus (1989) 



14 



