1879 - January / February Sea Ice 1 47.25 -54.50 1 46.00 -58.90 1879 - March Sea Ice 1 52.17 -53.83 1 47.67 -53.00 1879 - April Sea Ice 1 45.47 -59.65 1879 - January / February Sea Ice edge coordinates 1 50.53 -56.18 0 50.53 -56.18 0 50.53 -56.17 0 50.53 -56.17 0 50.53 -56.16 0 50.53 -56.16 0 50.53 -56.15 0 50.53 -56.15 0 50.53 -56.14 0 50.53 -56.14 0 50.53 -56.14 0 50.52 -56.13 0 50.52 -56.13 0 50.52 -56.12 0 50.52 -56.12 0 50.52 -56.11 0 50.52 -56.11 0 50.52 -56.1 0 50.52 -56.1 0 50.52 -56.09 0 50.52 -56.09 0 50.52 -56.08 0 50.52 -56.08 0 50.52 -56.07 0 50.52 -56.07 0 50.52 -56.07 0 50.52 -56.06 0 50.52 -56.06 0 50.51 -56.05 0 50.51 -56.05 0 50.51 -56.05 0 50.52 -56.01 0 50.53 -55.97 0 50.53 -55.94 0 50.54 -55.9 0 50.54 -55.86 0 50.55 -55.82 0 50.55 -55.79 0 50.56 -55.75 0 50.57 -55.71 0 50.57 -55.68 0 50.58 -55.64 0 50.58 -55.6 0 50.59 -55.56 0 50.59 -55.53 0 50.6 -55.49 0 50.61 -55.45 0 50.61 -55.42 0 50.62 -55.38 0 50.62 -55.34 0 50.63 -55.3 0 50.63 -55.27 0 50.64 -55.23 0 50.65 -55.19 0 50.65 -55.15 0 50.66 -55.12 0 50.66 -55.08 0 50.67 -55.04 0 50.67 -55.01 0 50.68 -54.97 0 50.68 -54.97 0 50.69 -54.95 0 50.7 -54.92 0 50.71 -54.9 0 50.72 -54.88 0 50.73 -54.86 0 50.74 -54.83 0 50.75 -54.81 0 50.76 -54.79 0 50.77 -54.77 0 50.78 -54.75 0 50.8 -54.72 0 50.81 -54.7 0 50.82 -54.68 0 50.83 -54.66 0 50.84 -54.63 0 50.85 -54.61 0 50.86 -54.59 0 50.87 -54.57 0 50.88 -54.55 0 50.89 -54.52 0 50.9 -54.5 0 50.91 -54.48 0 50.92 -54.46 0 50.93 -54.43 0 50.94 -54.41 0 50.95 -54.39 0 50.96 -54.37 0 50.97 -54.35 0 50.98 -54.32 0 50.98 -54.32 0 51 -54.31 0 51.02 -54.29 0 51.04 -54.28 0 51.06 -54.27 0 51.08 -54.25 0 51.1 -54.24 0 51.12 -54.22 0 51.14 -54.21 0 51.16 -54.2 0 51.18 -54.18 0 51.21 -54.17 0 51.23 -54.15 0 51.25 -54.14 0 51.27 -54.12 0 51.29 -54.11 0 51.31 -54.1 0 51.33 -54.08 0 51.35 -54.07 0 51.37 -54.05 0 51.39 -54.04 0 51.41 -54.02 0 51.43 -54.01 0 51.45 -54 0 51.47 -53.98 0 51.49 -53.97 0 51.51 -53.95 0 51.53 -53.94 0 51.55 -53.92 0 51.57 -53.91 0 51.57 -53.91 0 51.58 -53.91 0 51.6 -53.91 0 51.62 -53.92 0 51.63 -53.92 0 51.65 -53.92 0 51.67 -53.92 0 51.68 -53.92 0 51.7 -53.93 0 51.72 -53.93 0 51.73 -53.93 0 51.75 -53.93 0 51.77 -53.93 0 51.78 -53.94 0 51.8 -53.94 0 51.82 -53.94 0 51.83 -53.94 0 51.85 -53.95 0 51.87 -53.95 0 51.88 -53.95 0 51.9 -53.95 0 51.92 -53.95 0 51.93 -53.96 0 51.95 -53.96 0 51.97 -53.96 0 51.98 -53.96 0 52 -53.96 0 52.02 -53.97 0 52.03 -53.97 0 52.05 -53.97 0 52.05 -53.97 0 52.08 -53.98 0 52.11 -53.99 0 52.15 -54 0 52.18 -54.02 0 52.21 -54.03 0 52.24 -54.04 0 52.28 -54.05 0 52.31 -54.06 0 52.34 -54.07 0 52.38 -54.08 0 52.41 -54.09 0 52.44 -54.1 0 52.47 -54.11 0 52.51 -54.13 0 52.54 -54.14 0 52.57 -54.15 0 52.6 -54.16 0 52.64 -54.17 0 52.67 -54.18 0 52.7 -54.19 0 52.73 -54.2 0 52.77 -54.22 0 52.8 -54.23 0 52.83 -54.24 0 52.86 -54.25 0 52.9 -54.26 0 52.93 -54.27 0 52.96 -54.28 0 52.99 -54.29 0 52.99 -54.29 0 53.03 -54.31 0 53.06 -54.32 0 53.1 -54.34 0 53.13 -54.35 0 53.17 -54.37 0 53.2 -54.38 0 53.24 -54.4 0 53.27 -54.41 0 53.3 -54.43 0 53.34 -54.44 0 53.37 -54.46 0 53.41 -54.47 0 53.44 -54.48 0 53.48 -54.5 0 53.51 -54.51 0 53.54 -54.53 0 53.58 -54.54 0 53.61 -54.56 0 53.65 -54.57 0 53.68 -54.59 0 53.72 -54.6 0 53.75 -54.62 0 53.79 -54.63 0 53.82 -54.65 0 53.85 -54.66 0 53.89 -54.68 0 53.92 -54.69 0 53.96 -54.71 0 53.99 -54.72 0 53.99 -54.72 0 54.03 -54.73 0 54.07 -54.74 0 54.11 -54.75 0 54.15 -54.75 0 54.19 -54.76 0 54.23 -54.77 0 54.27 -54.78 0 54.31 -54.79 0 54.34 -54.79 0 54.38 -54.8 0 54.42 -54.81 0 54.46 -54.82 0 54.5 -54.83 0 54.54 -54.83 0 54.58 -54.84 0 54.62 -54.85 0 54.66 -54.86 0 54.7 -54.87 0 54.74 -54.87 0 54.78 -54.88 0 54.81 -54.89 0 54.85 -54.9 0 54.89 -54.91 0 54.93 -54.91 0 54.97 -54.92 0 55.01 -54.93 1879 - March Sea Ice edge coordinates 1 49.71 -54.58 0 49.72 -54.56 0 49.73 -54.55 0 49.75 -54.53 0 49.76 -54.52 0 49.77 -54.5 0 49.78 -54.49 0 49.79 -54.47 0 49.81 -54.46 0 49.82 -54.44 0 49.83 -54.43 0 49.84 -54.41 0 49.85 -54.4 0 49.86 -54.38 0 49.88 -54.37 0 49.89 -54.35 0 49.9 -54.34 0 49.91 -54.32 0 49.92 -54.31 0 49.94 -54.3 0 49.95 -54.28 0 49.96 -54.27 0 49.97 -54.25 0 49.98 -54.24 0 50 -54.22 0 50.01 -54.21 0 50.02 -54.19 0 50.03 -54.18 0 50.04 -54.16 0 50.05 -54.15 0 50.05 -54.15 0 50.07 -54.14 0 50.08 -54.14 0 50.09 -54.13 0 50.11 -54.12 0 50.12 -54.12 0 50.13 -54.11 0 50.15 -54.11 0 50.16 -54.1 0 50.17 -54.09 0 50.19 -54.09 0 50.2 -54.08 0 50.21 -54.08 0 50.23 -54.07 0 50.24 -54.07 0 50.25 -54.06 0 50.26 -54.05 0 50.28 -54.05 0 50.29 -54.04 0 50.3 -54.04 0 50.32 -54.03 0 50.33 -54.03 0 50.34 -54.02 0 50.36 -54.01 0 50.37 -54.01 0 50.38 -54 0 50.4 -54 0 50.41 -53.99 0 50.42 -53.98 0 50.44 -53.98 0 50.44 -53.98 0 50.46 -53.97 0 50.47 -53.97 0 50.49 -53.96 0 50.51 -53.96 0 50.53 -53.95 0 50.55 -53.95 0 50.57 -53.94 0 50.59 -53.93 0 50.61 -53.93 0 50.63 -53.92 0 50.65 -53.92 0 50.67 -53.91 0 50.69 -53.91 0 50.71 -53.9 0 50.73 -53.89 0 50.75 -53.89 0 50.77 -53.88 0 50.78 -53.88 0 50.8 -53.87 0 50.82 -53.87 0 50.84 -53.86 0 50.86 -53.85 0 50.88 -53.85 0 50.9 -53.84 0 50.92 -53.84 0 50.94 -53.83 0 50.96 -53.83 0 50.98 -53.82 0 51 -53.81 0 51 -53.81 0 51.03 -53.81 0 51.07 -53.81 0 51.1 -53.81 0 51.14 -53.81 0 51.17 -53.8 0 51.21 -53.8 0 51.24 -53.8 0 51.28 -53.8 0 51.31 -53.8 0 51.35 -53.79 0 51.38 -53.79 0 51.42 -53.79 0 51.45 -53.79 0 51.48 -53.79 0 51.52 -53.78 0 51.55 -53.78 0 51.59 -53.78 0 51.62 -53.78 0 51.66 -53.78 0 51.69 -53.77 0 51.73 -53.77 0 51.76 -53.77 0 51.8 -53.77 0 51.83 -53.77 0 51.87 -53.76 0 51.9 -53.76 0 51.94 -53.76 0 51.97 -53.76 0 52.01 -53.76 0 52.01 -53.76 0 52.03 -53.76 0 52.05 -53.77 0 52.06 -53.77 0 52.08 -53.78 0 52.1 -53.78 0 52.12 -53.79 0 52.14 -53.8 0 52.16 -53.8 0 52.18 -53.81 0 52.2 -53.81 0 52.22 -53.82 0 52.24 -53.82 0 52.26 -53.83 0 52.28 -53.83 0 52.3 -53.84 0 52.32 -53.85 0 52.34 -53.85 0 52.36 -53.86 0 52.38 -53.86 0 52.4 -53.87 0 52.41 -53.87 0 52.43 -53.88 0 52.45 -53.88 0 52.47 -53.89 0 52.49 -53.9 0 52.51 -53.9 0 52.53 -53.91 0 52.55 -53.91 0 52.57 -53.92 0 52.57 -53.92 0 52.58 -53.93 0 52.6 -53.93 0 52.61 -53.94 0 52.63 -53.95 0 52.64 -53.96 0 52.65 -53.97 0 52.67 -53.97 0 52.68 -53.98 0 52.7 -53.99 0 52.71 -54 0 52.72 -54.01 0 52.74 -54.01 0 52.75 -54.02 0 52.77 -54.03 0 52.78 -54.04 0 52.79 -54.05 0 52.81 -54.05 0 52.82 -54.06 0 52.84 -54.07 0 52.85 -54.08 0 52.86 -54.09 0 52.88 -54.09 0 52.89 -54.1 0 52.91 -54.11 0 52.92 -54.12 0 52.93 -54.13 0 52.95 -54.14 0 52.96 -54.14 0 52.98 -54.15 0 52.98 -54.15 0 53.01 -54.17 0 53.05 -54.18 0 53.08 -54.2 0 53.12 -54.21 0 53.15 -54.23 0 53.19 -54.24 0 53.22 -54.26 0 53.26 -54.27 0 53.29 -54.29 0 53.33 -54.3 0 53.37 -54.32 0 53.4 -54.33 0 53.44 -54.35 0 53.47 -54.36 0 53.51 -54.38 0 53.54 -54.39 0 53.58 -54.41 0 53.61 -54.42 0 53.65 -54.44 0 53.68 -54.45 0 53.72 -54.47 0 53.76 -54.48 0 53.79 -54.5 0 53.83 -54.51 0 53.86 -54.53 0 53.9 -54.54 0 53.93 -54.56 0 53.97 -54.57 0 54 -54.59 0 54 -54.59 0 54.04 -54.61 0 54.07 -54.63 0 54.11 -54.65 0 54.14 -54.67 0 54.17 -54.69 0 54.21 -54.71 0 54.24 -54.73 0 54.28 -54.75 0 54.31 -54.77 0 54.35 -54.79 0 54.38 -54.81 0 54.42 -54.83 0 54.45 -54.85 0 54.48 -54.87 0 54.52 -54.89 0 54.55 -54.91 0 54.59 -54.93 0 54.62 -54.95 0 54.66 -54.97 0 54.69 -54.99 0 54.72 -55.01 0 54.76 -55.03 0 54.79 -55.05 0 54.83 -55.07 0 54.86 -55.09 0 54.9 -55.11 0 54.93 -55.13 0 54.97 -55.15 0 55 -55.17 1879 - April Sea Ice edge coordinates 1 49.72 -54.77 0 49.73 -54.75 0 49.74 -54.74 0 49.75 -54.72 0 49.76 -54.71 0 49.77 -54.69 0 49.78 -54.68 0 49.79 -54.66 0 49.8 -54.64 0 49.81 -54.63 0 49.82 -54.61 0 49.83 -54.6 0 49.84 -54.58 0 49.85 -54.57 0 49.86 -54.55 0 49.87 -54.54 0 49.88 -54.52 0 49.89 -54.5 0 49.9 -54.49 0 49.91 -54.47 0 49.92 -54.46 0 49.93 -54.44 0 49.94 -54.43 0 49.95 -54.41 0 49.96 -54.4 0 49.97 -54.38 0 49.98 -54.36 0 49.99 -54.35 0 50 -54.33 0 50.01 -54.32 0 50.01 -54.32 0 50.04 -54.31 0 50.07 -54.3 0 50.11 -54.29 0 50.14 -54.28 0 50.17 -54.27 0 50.2 -54.26 0 50.24 -54.25 0 50.27 -54.24 0 50.3 -54.24 0 50.33 -54.23 0 50.36 -54.22 0 50.4 -54.21 0 50.43 -54.2 0 50.46 -54.19 0 50.49 -54.18 0 50.53 -54.17 0 50.56 -54.16 0 50.59 -54.15 0 50.62 -54.14 0 50.66 -54.13 0 50.69 -54.13 0 50.72 -54.12 0 50.75 -54.11 0 50.79 -54.1 0 50.82 -54.09 0 50.85 -54.08 0 50.88 -54.07 0 50.91 -54.06 0 50.95 -54.05 0 50.95 -54.05 0 50.97 -54.05 0 51 -54.05 0 51.03 -54.04 0 51.06 -54.04 0 51.08 -54.04 0 51.11 -54.04 0 51.14 -54.03 0 51.17 -54.03 0 51.19 -54.03 0 51.22 -54.03 0 51.25 -54.02 0 51.28 -54.02 0 51.3 -54.02 0 51.33 -54.02 0 51.36 -54.01 0 51.39 -54.01 0 51.41 -54.01 0 51.44 -54.01 0 51.47 -54 0 51.5 -54 0 51.52 -54 0 51.55 -54 0 51.58 -53.99 0 51.61 -53.99 0 51.63 -53.99 0 51.66 -53.99 0 51.69 -53.98 0 51.72 -53.98 0 51.74 -53.98 0 51.74 -53.98 0 51.75 -53.98 0 51.76 -53.99 0 51.77 -53.99 0 51.77 -53.99 0 51.78 -53.99 0 51.79 -54 0 51.79 -54 0 51.8 -54 0 51.81 -54.01 0 51.82 -54.01 0 51.82 -54.01 0 51.83 -54.01 0 51.84 -54.02 0 51.84 -54.02 0 51.85 -54.02 0 51.86 -54.03 0 51.86 -54.03 0 51.87 -54.03 0 51.88 -54.03 0 51.89 -54.04 0 51.89 -54.04 0 51.9 -54.04 0 51.91 -54.05 0 51.91 -54.05 0 51.92 -54.05 0 51.93 -54.05 0 51.94 -54.06 0 51.94 -54.06 0 51.95 -54.06 0 51.95 -54.06 0 51.99 -54.07 0 52.02 -54.08 0 52.06 -54.09 0 52.1 -54.1 0 52.14 -54.1 0 52.17 -54.11 0 52.21 -54.12 0 52.25 -54.13 0 52.28 -54.14 0 52.32 -54.15 0 52.36 -54.15 0 52.39 -54.16 0 52.43 -54.17 0 52.47 -54.18 0 52.51 -54.19 0 52.54 -54.2 0 52.58 -54.2 0 52.62 -54.21 0 52.65 -54.22 0 52.69 -54.23 0 52.73 -54.24 0 52.76 -54.25 0 52.8 -54.25 0 52.84 -54.26 0 52.88 -54.27 0 52.91 -54.28 0 52.95 -54.29 0 52.99 -54.3 0 53.02 -54.31 0 53.02 -54.31 0 53.06 -54.32 0 53.09 -54.33 0 53.13 -54.34 0 53.16 -54.35 0 53.2 -54.36 0 53.23 -54.37 0 53.27 -54.38 0 53.3 -54.39 0 53.34 -54.4 0 53.37 -54.41 0 53.41 -54.42 0 53.44 -54.43 0 53.48 -54.44 0 53.51 -54.45 0 53.55 -54.46 0 53.58 -54.47 0 53.61 -54.48 0 53.65 -54.49 0 53.68 -54.5 0 53.72 -54.51 0 53.75 -54.52 0 53.79 -54.53 0 53.82 -54.54 0 53.86 -54.55 0 53.89 -54.56 0 53.93 -54.57 0 53.96 -54.58 0 54 -54.59 0 54.03 -54.6 0 54.03 -54.6 0 54.07 -54.63 0 54.11 -54.65 0 54.14 -54.67 0 54.18 -54.7 0 54.22 -54.72 0 54.25 -54.74 0 54.29 -54.77 0 54.33 -54.79 0 54.36 -54.82 0 54.4 -54.84 0 54.44 -54.86 0 54.47 -54.89 0 54.51 -54.91 0 54.55 -54.94 0 54.58 -54.96 0 54.62 -54.98 0 54.66 -55.01 0 54.69 -55.03 0 54.73 -55.06 0 54.77 -55.08 0 54.8 -55.1 0 54.84 -55.13 0 54.88 -55.15 0 54.92 -55.18 0 54.95 -55.2 0 54.99 -55.22 0 55.03 -55.25