Parameter summaries are especially useful for numerical modeling of short 

 waves. The range and distribution of measured T p and 6 m values at the array help 

 determine wave conditions to be modeled (Figures 18 and 19). Since the 

 numerical model produces amplification factors as a function of incident short 

 wave period and direction, similar results from the field data are needed for 

 validation. Values of A s from field gage records were grouped according to 

 1-sec bins of T p and 10-deg bins of 6 m . A mean and standard deviation were 

 computed from values of A^, in each bin (Appendix B). 



The parameter N. (number of spectral peaks) at the array was found to be one 

 in almost every case. Thus short wave conditions at Kahului Harbor are gener- 

 ally well-represented by T p . More than one major wave event (e.g. sea and 

 swell) occurring simultaneously is unusual. 



Figure 15. Time-history of H s and d m (deg, going toward); array, Jan 94 



Table 5 



Field Wave Gage Parameter Correlation Coefficients, Pier 2, Jan 94 



Para- 

 meter 



Parameter 



'pjong 



H, 



T P 



8m 



n 



A 



^•mft/ 



(HJm, 



<U™ r 



"•Jong 



0.49 



0.81 



0.42 



0.03 



0.06 





0.10 



0.47 



0.12 



H, 





1.00 



0.33 



0.03 



0.10 



0.44 







0.24 



T P 







1.00 



0.05 





0.54 









e m 









1.00 



0.01 



0.10 









A 













1.00 







0.66 



20 



Chapter 2 Field Wave Measurements 



