Monthly Sea Ice Charts 



Canadian Ice Service 

 Colour Code 



fee coverage in tenths 



Ice Thicker Than 15 cm 



open or bergy water 

 (less than 1/10) 



E 



1 10 3/10 

 4 to 6/10 

 7 10 8/10 



9 10 10/10 



fast ice 

 Predominant tec - 15 cm or loss 



less than 10 cm (new ice) 



10 to 15 cm (grey ice) 



Old Ice 



1 to 4/10 

 5 to 10/10 



Reprinted with permission of the Canadian Ice Service. 



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