Table 3 y-value and weighting 

 factor for the family of JONSWAP 

 spectra 



Y -Value 



Weighting 

 Factor 



1.75 



2.64 



3 30 ( "®^° ^ 



•^•"^^ V JONS WAP ; 



3.96 

 4.85 



0.081 

 0.256 

 0.326 

 0.256 

 0.081 



Table 4 k-value to evaluate equivalent 

 wind speed for a given fetch and sig- 

 nificant wave height 





k-Value 



X in NM 



U in Kts 



X in Km 

 U in M/Sec 





1.75 



128.1 



96.2 



0) 



3 



> 

 1 



2.64 

 3.30 

 3.96 



117.6 

 111.4 

 106.6 



88.3 

 83.7 

 80.1 





4.85 



101.7 



76.4 



Table 5 Extreme wave heights for various 

 ranges in wave period. Significant wave 

 height = 7.5 m (24.6 ft). Tetaitime T = 78. i 

 hours in 50 years. 



Period range 

 in sec. 



Frequency range 

 in rps. 



Number 



Extreme wave 

 height in m. 



17.0 - 9.0 9.0 - 5.5 7.0 - 4.5 



0.37 - 0.70 0.70 - 1.14 0.90 - 1.40 



15.38 X 10' 10.86 X 10' 4.86 x 10' 



16.46 16.25 13.59 



104 



