JANUARY, FEBRUARY, MARCH 



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BER OF OC- 

 G THE SEA- 

 WAVES DE- 



: 



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21 AVERAGE NUM 

 CASIONS DURIh 

 SON WHEN 



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5 FEET. 











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— 



40 60 80 100 120 140 160 180 200 220 240 260 280 300 

 DURATION (HOURS) 



PERSISTENCE OF FAVORABLE SEAS (<5, 8, 12 FT.) 





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V 



140 







- 









21 AVERAGE NUMBER OF OC- 



- 



130 



~ 









CASIONS DURING THE SEA- 

 SON WHEN WAVES ROSE 



~- 





- 











P 110 



z 











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f. 















- 



z '0 

 



w 















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< 80 



















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O 



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2 ^° 



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- 



£ 



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- 



















30 



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- 



10 



















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\ 



■'•• 



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1 1 1 



>+^- 



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•vhT- 



M-N. 



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20 40 60 eO )00 120 UO 160 180 200 220 : 

 DURATrON (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (^5, 8, 



260 280 300 



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l^^^^^^^^^^ftrTTTTTT^ffp 



O 10 20 30 40 50 60 70 80 90 100 



APRIL, MAY, JUNE 



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5096 OBSERVATIONS 



19AVERAGE NUMBER OF OC- 

 CASIONS DURING THE SEA- 

 SON WHEN WAVES DE- 

 CREASED IN HEIGHT BELOW 

 5 FEET- 



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5096 OBSERVATIONS 



— 











- 









19 AVERAGE NUMBER OF OC- 

 CASIONS DURING THE SEA- 

 SON WHEN WAVES ROSE 



- 



- 



















- 



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40 60 80 100 120 140 160 180 200 220 240 

 DURATION (HOURS) 



PERSISTENCE OF FAVORABLE SEAS «5, 8, 12 FT.) 



I 40 60 80 100 120 140 160 180 200 220 240 260 280 

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS (g5, 8, 12 FT.) 



Mil llll|nil|IIIIIIITTT^^^^ffll|niljlMI 

 10 20 30 40 50 60 70 80 90 100 



FIGURE 51 OSV "M" 66.0°N., 2.0°E. 



