10-30
cm 3
2.4.1 Gray ice 10-15
cm 4
2.4.2 Gray-white ice 15-30
cm 5
2.5 First-year ice 30-200
cm 6
2.5.1 Thin first-year ice 30-70
cm 7
2.5.1.1 Thin first-year ice, first stage 30-50
cm 8
2.5.1.2 Thin first-year ice, second stage 50-70
cm 9
2.5.2 Medium first-year ice 70-
120 cm 1•
2.5.3 Thick first-year ice >
120 cm 4•
2.6 Old ice 7•
2.6.1 Second-year ice 8•
2.6.2 Multi-year ice 9•
10.4 Ice
/media/hafis/frodleikur/ice-chart_colour-code-standard.pdf