********************************************************** 



SEAWALL LOCATION MEASURED AT SUNNY DAYS BEACH. 



DATA WERE TAKEN FROM DIGITIZED AERIAL PHOTO. DX = 300 FT. 



************************************************************************* 



-9999 -9999 -9999 -9999 100.0 100.0 100.0 100.0 100.0 100.0 



100.0 100.0 100.0 100.0 100.0 100.0 -9999 -9999 -9999 -9999 



-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 



-9999 -9999 -9999 -9999 -9999 -9999 -9999 



Figure 26. Example SEAWL file 



DEPTH 



301. The input file DEPTH.DAT is read if an external wave refraction 

 model has previously been run (NWD =1 at Line B.3 in the START file) to 

 provide wave data. DEPTH holds depths along the nearshore reference line from 

 which GENESIS will continue to propagate waves using its own wave transforma- 

 tion routines (internal wave model). These depths had to be determined during 

 the process of running the external wave model , and the wave data held in 

 input file WAVES will bear a one-to-one correspondence with these depths in 

 order of grid cell number. If an external wave refraction model was not used, 

 i.e., wave parameters correspond to one depth (NWD = 0), this file will not be 

 read. A blank DEPTH file is given in Appendix B. 



302. Depth positions alongshore may be entered in "free format," i.e., 

 with or without a decimal. Individual entries must be separated by either a 

 blank space or a comma (or both) and placed in ascending order of grid cell 

 number . Ten entries must be placed on each line, except for the last line. 



WAVES 



303. The input file WAVES.DAT holds wave information that drives the 

 shoreline change simulation through calculation of the wave- induced longshore 

 sand transport rate. This file is read at every time step unless specified 

 otherwise at Line B.7 in the START file; it must exist and contain data in the 

 proper format to run GENESIS. Wave height is expressed in the user-specified 



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