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    Surface wave statistics and spectra for Valiathura coastlines, SW coast of India

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    I_J_Mar_Sci_30_9.pdf (707.0Kb)
    Date
    2001
    Author
    Asharaf, T.T.M.
    Nair, R.P.
    Sanjana, M.C.
    Muraleedharan, G.
    Kurup, P.G.
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    Abstract
    A series of 12 monthly graphical three-dimensional plots were produced for Valiathura, SW coast of India, taking significant wave height, zero up-crossing period and direction as the three axes. Joint distributions of significant wave height and zero-up crossing period have also been developed for these months to understand the combination of these parameters in random waves. The fair weather period (November-April) was characterized by comparatively moderate wave activity with period ranging from 6 to 17.5 sec and direction of wave approach from 190° to 200°. During rough weather period (May-October), the waves exhibit a wider spread of direction ranging from 190° to 260° with period ranging from 6 to 13.5 sec and significant wave height ranging from 0.6 to 3.2 m. Wave spectrum curves show that the TMA model gives better results and follows the observed spectra in a large number of cases during fair weather. During rough weather, TMA and Shadrin's models show almost identical behavior.
    URI
    http://drs.nio.org/drs/handle/2264/401
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