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Tharanga, D. (2014) Harbour Oscillations: Generation and Minimization of their Impacts. M. Sci. Thesis, University of Western Australia, School of Civil Environmental and Mining Engineering and UWA Oceans Institute, Pert, Australia, 154 p.

has been cited by the following article:

  • TITLE: Numerical Characterization of Harbor Oscillations in the Port of Ensenada, Mexico

    AUTHORS: Carlos R. Torres-Navarrete

    KEYWORDS: Harbor Oscillations, Port of Ensenada, Mexico, Boundary-Fitted Grids, Curvilinear Coordinates

    JOURNAL NAME: Open Journal of Marine Science, Vol.6 No.3, July 12, 2016

    ABSTRACT: A series of numerical experiments from a barotropic configuration of the General Curvilinear Ocean Model (GCOM) was conducted to analyze the response to infragravity (IG) waves of the Port of Ensenada, located within Bahia de Todos Santos (BTS), west coast of Mexico. Experiments with forcing frequencies f = 50?1 min?1, f = 30?1 min?1, f = 25?1 min?1 and f = 16.66?1 min?1 showed the expected increase of energy at the corresponding forcing frequency band and also the appearance of secondary peaks of energy at frequency bands f = 8.33?1 min?1 and f = 4.16?1 min?1 which were identified as modes f1 and f2; being the band at f = 16.66?1 min?1 the zeroth f0 mode. Maximum peak of spectral energy from the numerical experiments was found at frequency band f0 = 16.66?1 min?1 which agreed with the estimated maximum value of the amplification factor and with the T0 mode of oscillation of the port. Distribution of amplitudes inside PE for modes f0, f1 and f2 were also presented. Mode f0 represents a quarter-wave oscillation with amplitudes of the same sign; mode f1 has two nodal lines and mode f2 presents and additional one. Corresponding harbor currents were also calculated, they were in the range 20 - 160 cm?s?1. Finally, in order to elucidate the source of the external signals found in the spectral analysis of this study, the natural oscillation modes of the BTS were estimated. Although more studies are needed, BTS oscillation mode T2 = 16.82 min, was identified as the external forcing that excites larger oscillations within the port.