MODEL 







OOON 







OION 



DATA 





« 05m 



ABOVE 



• lOm) 



BOTTOM 



WAVE STAFF 

 DATA ■ 



70 



- 





A 



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eo 



N 







* < 











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g 30 

 5 



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A 





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1 



05 10 



LONGSHORE CURRENT (m/i I 



30 - 

 20 

 10 

 



05 

 RMS WAVE HEIGHT (ml 



(a) Comparison of model and observed current profiles (a) 

 and wave heights (b) . Model results for adjacent 

 Computational Rows are shown in (a). 



MODEL 



CASE A 







CASEB 



DATA 



* 05m 



• lOm 



ABOVE 

 BOTTOM 



DATA 

 » OSm ' ABOVE 

 • lOm 1 BOTTOM 



TO 



- 



A 



• 







GO 



/ 





A 



• 





SO 



( 











40 





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30 



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20 



- 



< 



>. 







10 



- 







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— -__ 



LONGSHORE CURRENT Im/s) 



LONGSHORE CURRENT I a/i) 



(b) Comparison of model and observed current profiles for 

 different wave climates at the beginning (Case A) and 

 end (Case B) of a sled transit (a) and for a less 

 severe wave climate (b) . 



Figure 82. Comparisons of field observations of nearshore currents and 

 numerical model of Birkemeier and Dalrymple (1976) (from 

 Allender, et al. , 1978). 



207 



