JANUARY, FEBRUARY, MARCH 





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1 1 ' 



1 1 ' 



1 1 ' 



1 1 1 j 1 1 1 1 1 1 1 1 



1— 



140 





— 















- 









X AVERAGE NUMBER OF OC- 



- 



130 



7 









CASIONS DURING THE SEA- 

 SON WHEN WAVES DE- 



~ 



120 















- 









5 FEET. 



- 



P 











— 



£ ^^ 



































a 



-• 















- 



.» 90 



Z 



o 



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~ 



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O 70 



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O 



- 



••• 













- 



i =0 



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10 



~ -«»^ 



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- 



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1— 





— 













- 









4 AVERAGE NUMBER OF OC- 



- 



— 









CASIONS DURING THE SEA- 



— 



- 









SON WHEN WAVES ROSE 



_ 



- 



















I 



- 















- 



l 















_ 



— 















_ 



t 















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X 















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1 1 1 



1 1 1 



i 1 1 



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- 



40 60 60 100 120 140 160 180 200 220 240 : 

 DURATION (HOURS! 



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



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

 DURATION (HOURS) 



PERSISTENCE OF UNFAVORABLE SEAS {§5, 8, 12 FT.) 



l""l""l""l""l""r"T"T' 



10 20 30 40 50 60 70 80 90 100 



^ 



APRIL, MAY, JUNE 



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1 I [ 



1 1 1 1 1 1 1 1 1 1 1 1 



1^ 





ERVATIONS 



RAGE NUMBER OF OC- 



ONS DURING THE SEA- 



WHEN WAVES DE- 



: 



7 









1 AVE 

 CAS 

 SON 



- 









5 FEET. 











- 



1 "•• 

















" 



^">>.,^ 



-^_ 













•t 



- 











■" 



- 



-- 



- 















- 



"l 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



i 1 1 



- 



20 40 60 BO 100 120 140 160 180 200 220 240 

 DURATION (HOURS) 



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



260 280 300 



J 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 1 1 1 1 1 1 1 1 1 



... 



9828 OBSERVATIONS 



— 











- 









1 AVERAGE NUMBER Of OC- 



- 



— 









CASIONS DURING THE SEA- 



— 



- 









SON WHEN WAVES ROSE 

 TO S FEET OR HIGHER. 



— 



- 

















- 



- 















- 



1- 















_ 



1_ 















— 



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- 



1 















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~ 



t 















- 



1 















- 





.1 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



1 1 1 



- 



I 40 60 80 100 120 140 160 180 200 220 240 260 2B0 300 

 DURATION (HOURS! 



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



10 20 30 40 50 60 70 80 90 100 



FIGURE 7D ELBE I 54°0.0'N., 8°10.7'E. 



