Table 1 



Wave Data from Numerical Model SBEACH and Interpolated 

 Wave Conditions Tested for 1978 Storm at Revere Beach, 

 Profile 2 



Hour 



SWL 

 ft, mlw 



Wave 



Height 



ft 



Wave 



Period 



sec 



SWL 

 Tested 

 ft, mlw 



Interp 

 Wave Ht 

 ft 



Interp 

 Wave Per 

 sec 



Overtopping 

 Rate, cfs/ft 



13 



10.5 



6.0 



8.1 



10.8 



6.1 



8.1 



0.0066 



14 



13.5 



7.2 



8.6 



13.0 



7.0 



8.6 



0.0643 



15 



14.2 



10.8 



9.0 











16 



13.0 



10.1 



9.7 



13.0 



10.1 



9.7 



0.1004 



17 



13.0 



6.8 



10.3 











18 



11.2 



6.1 



11.0 



10.8 



6.0 



11.0 



0.008 



19 



8.0 



5.0 



11.3 











24 



9.0 



5.3 



12.0 











25 



10.8 



6.0 



12.3 



10.8 



6.0 



12.3 



0.0077 



26 



13.6 



7.0 



12.7 



13.0 



6.8 



12.6 



0.0843 



27 



15.4 



7.7 



13.0 



15.4 



7.7 



13.0 



1 .3553 



28 



15.5 



7.7 



13.0 











29 



14.2 



7.2 



13.0 



13.0 



6.8 



13.0 



0.959 



30 



11.5 



6.3 



13.0 



10.8 



6.0 



12.9 



0.0063 



31 



8.8 



5.3 



12.7 











shallow-water modification of the Joint North Sea Wave Project (JONSWAP) 

 spectrum (Hasselman et al. 1973). Monochromatic wave heights and periods 

 were obtained from SBEACH at a distance offshore corresponding to the 

 approximate location of the wave generator in the physical model study 

 and used as the height of the zeroth moment {H^g ) and T- for the wave 

 spectra. 



Physical model tests were conducted for 30 min for each of the four 

 test conditions at each of the two lower water levels (10.8 and 13.0 ft mlw). 

 Due to the small amount of overtopping at these water levels, the water 

 level in the flume did not decrease appreciably during the tests. During 

 tests at the highest water level (hr 27), test runs were limited to 2 min 

 each to allow the overtopped water to be added back into the flume to 

 maintain the desired water level. Ten 2-min runs were conducted at the 

 highest water level. Different wave signals were generated for each 2-min 

 run. 



After completing the test series, overtopping volume collected during 

 the tests was found to be much higher than expected. Examination of the 

 input data showed that water levels provided by SBEACH included com- 

 puter estimates of wave setup. However, wave setup occurs naturally in a 



Chapter 3 Research Tasks A, B, and C 



11 



