Name	Notation	Description	Types	Status
No ice of land origin	0		Concept	stable
1-5 icebergs, no growlers or bergy bits	1		Concept	stable
6-10 icebergs, no growlers or bergy bits	2		Concept	stable
11-20 icebergs, no growlers or bergy bits	3		Concept	stable
Up to and including 10 growlers and bergy bits - no icebergs	4		Concept	stable
More than 10 growlers and bergy bits - no icebergs	5		Concept	stable
1-5 icebergs, with growlers and bergy bits	6		Concept	stable
6-10 icebergs, with growlers and bergy bits	7		Concept	stable
11-20 icebergs, with growlers and bergy bits	8		Concept	stable
More than 20 icebergs, with growlers and bergy bits - a major hazard to navigation	9		Concept	stable
Unable to report, because of darkness, lack of visibility or because only sea ice is visible	14		Concept	stable
Missing value	15		Concept	stable