(NWAVES = 1) are given in Figure 27. In Figure 27a each line corresponds to 

 one time step, whereas in Figure 27b one line with 3 values together with the 

 following four lines with 10 values each represent one time step. As shown, 

 it is possible to add descriptive information at the end of any line holding 

 the offshore wave period, height, and direction. 



Output Files 



312. As illustrated in Figure 22, the output from GENESIS is placed in 

 three files; SETUP.DAT, 0UTPT.DAT, and SH0RC.DAT. 



SETUP 



313. The output file SETUP.DAT is written both to screen and to a 

 logical file that can be sent to a printer for a hard copy. SETUP reads back 

 to the modeler basic information and instructions entered in the START file. 

 Also, error messages and warnings received from GENESIS are written to SETUP. 

 The SETUP information displayed on screen allows the modeler to review the 

 parameters governing the run and to terminate execution if an error is 

 detected in the START file. This measure helps to quickly identify computer 

 runs made on the basis of erroneous input information. The hard copy of SETUP 

 serves as documentation of the run and confirmation of the START file that 

 defined the run conditions. 



314. As shown in Figure 28, the first line in the SETUP file after the 

 GENESIS logo gives the name of the run as specified on Line A.l in the START 

 file. Units of measure and other important parameter values follow. With 

 regard to NTS , it should be noted that if the simulation interval spans a 

 leap year or years, the value of NTS will not initially account for the 

 extra day(s); however, as GENESIS steps through time if February 29th is 

 encountered, the counter NTS will be revised appropriately on the screen 

 (and for the calculation) . The shoreline position and the change in shoreline 

 position from the original shoreline are written separately. The CVE para- 

 meter gives the average difference in position at each longshore grid cell 

 between the calculated shoreline SHORC and the shoreline SHORM that is to be 

 reproduced. 



129 



