quality problems. The manual method for determining K^ was used with 

 the grade II data, which had problems of (a) pen skips, (b) highly vari- 

 able instrument carriage velocity, or (c) off-scale values. Twenty per- 

 cent of the grade I envelopes were also reduced manually to provide a 

 comparison of the two methods. The water surface elevation data collected 

 with the gage stationary during the first 10 minutes, and the two runs 

 indicated in Table A-1 were analyzed 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 analyzed by project personnel 

 using the dry sieve method as a quality control measure. Table A-2 gives 

 the results from the dry sieve method. 



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 elevations in 

 the inshore zone at 30 and 80 hours . 



Table A-2. Sediment-size analysis (dry sieve method), at 0, 100, 

 and 180 hours for experiment 72D-06. 



Station 



Range 2 



Range 4 





Elevation 

 (ft) 



Median 

 (mm) 



Median 

 (phi) 



Elevation 

 (ft) 



Median 

 (mm) 



Median 

 (phi) 



hr 



-4 



0.25 



0.22 



2.20 



0.25 



0.22 



2.18 



8 



-0.40 



0.22 



2.17 



-0.40 



0.22 



2.18 



20 



-0.95 



0.22 



2.17 



-0.95 



0.22 



2.19 



100 hr 



-8 



0.50 



0.22 



2.21 



0.50 











4 



-0.50 



0.23 



2.11 



-0.70 



0.21 



2.24 



16 



-0.90 



0.21 



2.24 



-0.80 



0.22 



2.16 



28 



-1.10 



0.23 



2.11 



-1.00 



0.23 



2.13 



40 



-1.89 



0.23 



2.13 



-1.95 



0.22 



2.16 



180 hr 



-10 



0.55 



0.21 



2.24 



0.55 



0.22 



2.20 



10 



-0.90 



0.20 



2.32 



-1.30 



0.20 



2.31 



30 



-0.85 



0.26 



1.93 



-1.30 



0.28 



1.83 



60 



