Publication Type : Journal Article
Publisher : Natural Hazards
Source : Natural Hazards, Volume 49, Number 2, p.165-186 (2009)
Url : http://www.scopus.com/inward/record.url?eid=2-s2.0-64249163137&partnerID=40&md5=3dace8dd45d0e102440ba5204a65d54e
Campus : Kochi
School : School of Arts and Sciences
Department : Mathematics
Year : 2009
Abstract : We used field and model wave data to investigate that zero crossing and average wave period distribution follow Gamma distribution. Since Gamma CDF is an infinite power series, further mathematical treatment is difficult. Hence its shape parameter is approximated to the nearest integer to arrive at Erlang distribution. An expression is derived from Erlang distribution to estimate various mean wave periods and significant wave period and validated by relative root mean square (RRMS) error criteria. It is shown by mathematical logic that the significant wave period distribution follows Erlang (or Gamma) distribution and is validated. The average of one-third and one-tenth highest wave periods (Ts) estimated from Erlang distribution are in accordance with the values computed from recorded buoy and numerical coastal wave model wave period data. The predicted Ts values from coastal wave model wave period data underestimates the values from buoy wave period data. © Springer Science+Business Media B.V. 2008.
Cite this Research Publication : Ga Muraleedharan, Sinha, Ma, Rao, A. Da, Nair, N. Ub, and Kurup, P. Gc, “Estimation of wave period statistics using numerical coastal wave model”, Natural Hazards, vol. 49, pp. 165-186, 2009.