Chryssostomtdts 
spent at sea, see Reference 6 . In addition the seasonal variation is 
not significant as can be seen from the tables presented in Ref. 6 , 
and fully developed seas are the predominant seas encountered in the 
North Atlantic as can be seen from the results of Reference 7 
The frequency histogram obtained from Reference 6 for the 
area of interest is given in Table 1. Table 1 also gives the simplified 
histogram used in this study. The author did not have access toa 
computer during the study and had to keep computations to a minimum, 
resulting in this further simplification. However attention was paid to 
retain enough detail in the environment description. Therefore valid 
conclusions can be drawn from the results of the present study. 
TABLE 1 
Significant Wave Height Histogram 
for the New York-Rotterdam Route 
Histogram from Reference 6 Histogramused inthis Study 
Significant Wave Height Percentage Significant Wave Height Percentage 
ft % ft 7% 
4.76 4.16 7. 94 48.25 
5.48 6. 81 60,58 26. 14 
6. 92 bis oe 13.23 13.47 
8.37 19. 96 igs iat 2 7 (. Sf 
9. 81 14. 90 212 o 2.20 
f1225 11.24 26. 45 1, 89 
E2270 42-70 
14,14 Be Gl 
$5258 3. 82 
i 03 3.44 
18.47 0. 61 
19. 91 0.59 
21.256 0. 90 
22. 80 0.89 
24625 0. 3,7 
25. 69 0. 44 
2 akp 0.34 
2:8,:58 0. 22 
30,02 On dig 
31.46 0.34 
35. 79-44. 46 0.01 
1594 
