4. 5. 6. 7. Wave Calculations Wave characteristics can be expressed mathematical

Question

4. 5. 6. 7. Wave Calculations Wave characteristics can be expressed mathematically. For exampl wce celerity) is given by the relationship: Distance or Wave Length Time or Wave Period Wave Velocity or Speed- Wave base can be calculated as: Wave Base Depth-h Wave Length The depth at which waves become unstable, collapse forward, and break is herein called the break- ing marve depth and is expressed mathematically by the following equation Breaking Wave Depth-0.05 Wave length 4. By definition, how are deep-water waves distinguished from transitional waves and shallow-water waves? 5. Below what depth in meters would a submarine need to dive in order to avoid the potentially haz- ardous effect of storm waves with average wave length of 19 meters? 6. Calculate the velocity in meters per second for a group of deep-water waves with a wave length of 13 meters and a wave period of 9.4 seconds. Basic equation for wave velocity: Velocity Wave Length Wave Period Laboratory 13: The Coast: Processes and Hazards 139 138 Laboratory 13: The Coast: Procese

Explanation / Answer

4. The distinction between them is that in Deep water waves the waves move through water deeper than half their wavelength whereas in the Shallow water waves the waves in water are shallower than 1/20 of their original wavelength. The Transitional wave is whose shape is between a deep water wave and a shallow water wave. Specifically when the depth of the water is between 1/20th and 1/2 the wavelength of the wave.

5. To avoid the potentially hazardous effect of wave the submarine should be at a depth of 1/2 wave length = 19/2 = 9.5 meters

6. given velocity = wave length/period

thus velocity = 13/9.4 = 1.383 m/sec

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