LEGEND AND EXAMPLES 



I (HOURS) 

 PERSISTENCE OF FAVORABLE SEAS {<6, 9, 12 FT.) 



DURATION (HOURS) 

 PERSISTENCE OF UNFAVORABLE SEAS ( = 



LEGEND 

 WAVE HEIGHT 



irpTnTmr^fflTnTr^^WTTTJ 



VS^^ 



5^ 



JTTTTJTTTTp 



iiir 



10 20 30 40 50 60 70 80 90 100 

 SUMMARY SCALE 

 (ALL DIRECTIONS) 



FIGURE 5 WAVE PERSISTENCE CURVES AND WAVE HEIGHT BAR GRAPHS FOR OCEAN STATION 

 VESSELS OF THE NORTH ATLANTIC 



33 



