11 Shuga 12 Grease

ICE TYPE (ty)
10	Frazil

20 Nilas 30 Pancakes 40 Young grey ice, 0.1-0.15 m 50 Young grey-white ice, 0.15-0.3 m 60 First year, 0.3-0.7 m 70 First year, 0.7-1.2 m 80 First year, >1.2 m 85 Multiyear floes 90 Brash 95 Fast ice ICE CONCn (c) to be expressed in tenths SEA ICE (z) AND SNOWTHICKNESS (sz) to be expressed incentimetres FLOE SIZE (f) 100 Pancakes 200 New sheet ice 300 Brash/broken ice 400 Cake ice, <20 m 500 Small floes, 20-100 m 600 Medium floes, 100-500 m 700 Large floes, 500-2000 m 800 Vast floes, >2000 m TOPOGRAPHY (t) 100 Level ice 200 Rafted pancakes 300 Cemented pancakes 400 Finger rafting 5xy New, unconsolidated ridges (no snow) 6xy New ridges filled with snow or a snow cover 7xy Consolidated ridges (no weathering) 8xy Older, weathered ridges x values: 0 0-10% areal coverage 1 10-20% 2 20-30% 3 30-40% 4 40-50% 5 50-60% 6 60-70% 7 70-80% 8 80-90% 9 90-100% y values: 1 0.5 m av. sail height 2 1.0 m 3 1.5 m 4 2.0 m 5 3.0 m 6 4.0 m 7 5.0 m SNOW TYPE (s) 0 No snow observation 1 No snow, no ice or brash 2 Cold new snow, < 1 day old 3 Cold old snow 4 Cold wind-packed snow 5 New melting snow (wet new snow) 6 Old melting snow 7 Glaze 8 Melt slush 9 Melt puddles 10 Saturated snow (waves) 11 Sastrugi OPEN WATER (OW) 0 No openings 1 Small cracks 2 Very narrow breaks, <50m 3 Narrow breaks, 50-200 m 4 Wide breaks, 200-500 m 5 Very wide breaks, >500 m 6 Lead/coastal lead 7 Polynya/coastal polynya 8 Water broken only by small scattered floes 9 Open sea