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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/108/03/0149-0153

    • Keywords

       

      Wave climatology; wave predictions; ocean wave modelling

    • Abstract

       

      It is well accepted that the parent distribution for individual ocean wave heights follows the Weibull model. However this model does not simulate significant wave height which is the average of the highest one-third of some ‘n’ (n- varies) wave heights in a wave record. It is now proposed to redefine significant wave height as average of the highest one-third of a constant number (n-constant, say,n = 100) of consecutive individual wave heights. The Weibull model is suggested for simulating redefined significant wave height distribution by the method of characteristic function. An empirical support of 100.00% is established by Χ2-test at 0.05 level of significance for 3 sets of data at 0900, 1200 and 1500 hrs at Valiathura, Kerala coast. Parametric relations have been derived for the redefined significant wave height parameters such as mean, maximum one-third average, extreme wave heights, return periods of an extreme wave height and the probability of realising an extreme wave height in a time less than the designated return period.

    • Author Affiliations

       

      G Muraleedharan1 N Unnikrishnan Nair1 2 P G Kurup1

      1. Department of Physical Oceanography, Cochin University of Science and Technology, Fine Arts Avenue, Cochin, 682016, Kerala, India
      2. Department of Statistics, Cochin University of Science and Technology, Cochin, Kerala - 682022, India
    • Dates

       
  • Journal of Earth System Science | News

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