occurred during the month, one lasting from 10-13 October and the other from 

 23-26 October. The latter was the more severe event. Prototype data col- 

 lected during this month included bathymetric surveys conducted on October 16 

 and 27, continuous and synchronous wave data from six Baylor gages along the 

 pier and an offshore Waver ider buoy, radar imagery of the sea surface, and 

 continuous tide elevation data. All wave data were available in a spectral 

 form (energy density as a function of frequency). Estimates of significant 

 height and peak period were provided also. Wave directions could be deter- 

 mined from the radar imagery. The availability of clear radar pictures was 

 ultimately the discriminating factor in selecting which time periods were con- 

 sidered for verification purposes. 



51. Six cases, or time periods, were ultimately chosen using the fol- 

 lowing process. As stated above, only those times were considered when clear 

 radar imagery was available. The number of candidate times were further re- 

 duced by requiring that wave data be available within approximately 1 hr of 

 the time the image was taken. Next, the wave spectum from the offshore gage 

 was checked for spectral shape. Only times with single-peaked, fairly narrow 

 banded spectra were considered. Six cases which met all the criteria are 

 shown in Table 1 . 



Table 1 

 Summary of Field Data Used to Verify RCPWAVE 



































Time of 





Test 











e o 





Radar 



Bathymetry 



Case 





Time 



H o 



T 



Tide 



Imagery 



Survey 



Number 



Date 



G.m.t.* 

 1300 



m 

 1.95 



sec 

 13.21 



deg 

 -23 



m 



G.m.t. 

 1115 



Date 



1 



10-13-82 



0.12 



10-16-82 



2 



10-13-82 



1400 



1.87 



14.22 



-25 



-0.18 



1115 



10-16-82 



3 



10-15-82 



1210 



0.78 



12.34 



-25 



0.78 



1130 



10-16-82 



4 



10-17-82 



1200 



1.56 



6.87 



43 



0.91 



1120 



10-16-82 



5 



10-25-82 



1900 



3.10 



12.34 



-25 



0.68 



1950 



10-27-82 



6 



10-25-82 



2000 



2.95 



12.34 



-25 



0.63 



1950 



10-27-82 



* G.m.t. denotes Greenwich mean time. 



52. For each case the date and time of the recorded wave data are 

 shown. The parameters H , T , and 9 are the deepwater wave characteris- 

 tics used as input into RCPWAVE. The value of T was chosen to be the best 



30 



