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Image : BG Sea Ice and Solid FWC

Figure 2. Ten-day running mean time series of ice draft, and fractions of category 0, category 1, category 2, and category 3 ice for all BGOS mooring locations (A red, B green, C cyan, D blue).  Category 0 includes all ice thicknesses less than 0.3 m (ice drafts less than 0.3 m including zero) which typically contains open water and young ice; category 1 includes ice thicknesses between 0.3 m and 2 m (ice drafts between 0.3 m and 1.8 m) typically associated with first-year ice but also may contain ablatedmultiyear ice; category 2 includes ice thicknesses between 2 m and 3 m (ice drafts between 1.8 m and 2.7 m) typically containing multiyear and old ice; and category 3 includes ice thicknesses greater than 3 m (ice drafts greater than 2.7 m) typically containing ridged ice.


Last updated: November 6, 2019

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