Directional Wave Measurement And Analysis
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Directional Wave Measurement and Analysis
A directional wave analysis computer program has been developed to analyze the measured directional wave data from an ENDECO Wave-Track buoy. Due to the nature of the buoy, the direction components must be adjusted in order to apply a conventional wave slope analysis. The choice of a Wave-Track buoy stems from the requirement of a light-weight, easy to handle directional sensing wave buoy. The results can be used to validate the directional spread of wave energy produced by the Spectral Ocean Wave Model (SOWM). Also, the resulting directional spread of energy, as produced by the buoy, may now be used with ship motions to produce ship response amplitude operator (RAO's), or combined with ship RAO's to estimate ship motions. The equations are developed to account for buoy motions in a current and in shallow water. Although electronic phase shifts have been adjusted, it is still necessary to develop some analytical solution to compensate for hydrodynamic responses and phase shifts. The analyzed results include frequencies, energy densities, Fourier coefficients, first and second harmonic mean wave directions and root mean square (rms) spreading. Also included is the directional spreading of energy calculated by four different methods. Results have agreed well with other wave measuring buoys as detailed in other sources. Keywords: Sea testing. (Author).
Ocean Wave Measurement and Analysis
Proceedings of the Second International Symposium on Ocean Wave Measurement and Analysis, held in New Orleans, Louisiana, July 25-28, 1993. Sponsored by the Waterways, Port, Coastal and Ocean Division of ASCE. This collection, which honors Professor Robert L. Wiegel, contains 79 papers that explore major advances in wave measurement and quantification of ocean and lake waves, including technical knowledge and applications on wave theory, characteristics, design and techniques. Papers are both national and international in scope and include practical examples and case histories. Topics include: wave transformation, data analysis and reliability, wave modeling, applications, long waves, extreme wave statistics, and other topics relating to wave research over the last two decades. This collection will serve as a primary reference to the latest information in the field of wave measurement and analysis for anyone working with coastal technology.