Analysis of Mode! Data 



Relative merits of the various plans were evaluated by: 



a. Comparison of wave heights at selected locations in the model. 



b . Comparison of wave-induced current patterns and magnitudes . 



c. Comparison of sediment tracer movement and subsequent deposits. 



d. Visual observations and wave pattern photographs. 



In the wave-height data analysis, the average height of the highest one-third of 

 the waves ( H s ), recorded at each gauge location, was computed. All wave heights 

 then were adjusted by application of Keulegan's equation 1 to compensate for 

 excessive model wave height attenuation due to viscous bottom friction. From this 

 equation, reduction of model wave heights (relative to the prototype) can be 

 calculated as a function of water depth, width of wave front, wave period, water 

 viscosity, and distance of wave travel, and the model data can be corrected and 

 converted to their prototype equivalents. 



G. H. Keulegan. (1950). "The Gradual Damping of a Progressive Oscillatory Wave with Distance in 

 a Prismatic Rectangular Channel," Unpublished data, National Bureau of Standards, Washington, DC, 

 prepared at request of Director, WES, Vicksburg, MS, by letter of 2 May 1950. 



Chapter 3 Experimental Conditions and Procedures 1 7 



