Accuracy Improvement of Directional Spectrum Estimation with Upgraded Submerged Doppler Type Directional Wave Meter

Masao MITSUI, Noriaki HASHIMOTO, Hiroyasu KAWAI, Masaki YOKOTA, Yasushi KITAMURA
2010 Journal of Japan Society of Civil Engineers Ser B2 (Coastal Engineering)  
An upgraded submerged Doppler-type directional wave meter can measure 10wave quantities related to directional wave motions, i.e. water surface elevation, 3 components of water particle velocities at each layer of 3different water depth ranging from shallow to deep. In this study, accuracy of directional spectrum estimation is comprehensively investigated for various cases where directional spectra are estimated with various sets of different number of wave quantities. As a result, accuracy
more » ... ovement is generally confirmed in various wave conditions when all the quantities are applied to the estimations, compared with the cases where conventional 4 wave quantities are applied to the estimations. G
doi:10.2208/kaigan.66.1446 fatcat:cf34odvovjeotmjo6oqpw6ktvy