The water surface elevation data collected with a stationary gage, 
during the first 10 minutes and the two runs indicated in Table A-1, were 
reduced manually to determine average wave heights. 
b. Sand-Size Distribution. All samples were analyzed using the VA 
tube method by the U.S. Army Engineer Division, Missouri River, laboratory. 
Approximately 10 percent of the samples were also analyzed by project 
personnel in the CERC Petrology Laboratory using the dry sieve method as 
a quality control measure. Tables A-2 and A-3 give the results from the 
dry sieve method. 
Table A-2. Sediment-size analysis (dry sieve method), at 0 
hours for experiment 72C-10. 
Range 6 
Elevation | Median | Median Elevation | Median 
(ft) (mm (phi) (ft) (mm) 
0.45 0.23 Bole 0.45 0.22 
Salieel 2 0.19 DoS -1.10 0.20 
c. Breaker Characteristics. Breaker type and position data were 
determined from the visual observation form. Breaker height data were 
determined from the stationary recordings of water surface elevation in 
the inshore zone at 56 and 77 hours. 
Station 
Table A-3. Sediment-size analysis (dry sieve method) at 50, 100, and 140 hours for experiment 72C-10. 
Elevation 
(£t) 
Elevation 
(£t) 
Elevation 
(£t) 
62 
