1947 - March / April Icebergs

           1    47.45   -46.50
           1    42.50   -50.00
           1    43.00   -51.00
           1    45.00   -40.50
           1    42.83   -50.00
           0    42.83   -51.00
           1    44.45   -47.17
           1    43.50   -45.50
           0    43.00   -50.00

1847 - March / April Sea Ice

           1    48.00   -53.42
           1    47.58   -52.00
           1    43.00   -49.00
           1    44.00   -49.00
           1    42.50   -57.00
           1    47.58   -52.67
           1    47.83   -52.83
           1    48.58   -53.00
           1    43.50   -50.00
           1    47.00   -49.00
           1    46.52   -58.22
           0    46.93   -58.57
           0    47.08   -58.67
           1    47.83   -60.00
           0    50.67   -58.00
           1    47.00   -57.82
           0    44.00   -57.82
           0    47.58   -57.00
           1    43.92   -46.00
           1    45.58   -61.17


1847 - March / April Sea Ice edge coordinates

       1   47.54  -52.57
       0   47.54  -52.56
       0   47.55  -52.55
       0   47.55  -52.54
       0   47.55  -52.53
       0   47.55  -52.52
       0   47.55  -52.51
       0   47.55   -52.5
       0   47.55  -52.49
       0   47.55  -52.48
       0   47.55  -52.47
       0   47.55  -52.46
       0   47.55  -52.45
       0   47.55  -52.44
       0   47.56  -52.43
       0   47.56  -52.42
       0   47.56  -52.41
       0   47.56   -52.4
       0   47.56  -52.39
       0   47.56  -52.38
       0   47.56  -52.37
       0   47.56  -52.36
       0   47.56  -52.35
       0   47.56  -52.34
       0   47.56  -52.33
       0   47.57  -52.32
       0   47.57  -52.31
       0   47.57   -52.3
       0   47.57  -52.29
       0   47.57  -52.28
       0   47.57  -52.28
       0   47.55  -52.25
       0   47.53  -52.22
       0   47.51  -52.18
       0   47.49  -52.15
       0   47.47  -52.12
       0   47.45  -52.08
       0   47.43  -52.05
       0   47.41  -52.02
       0   47.39  -51.99
       0   47.37  -51.95
       0   47.34  -51.92
       0   47.32  -51.89
       0    47.3  -51.85
       0   47.28  -51.82
       0   47.26  -51.79
       0   47.24  -51.75
       0   47.22  -51.72
       0    47.2  -51.69
       0   47.18  -51.66
       0   47.16  -51.62
       0   47.14  -51.59
       0   47.12  -51.56
       0    47.1  -51.53
       0   47.08  -51.49
       0   47.06  -51.46
       0   47.04  -51.43
       0   47.02  -51.39
       0      47  -51.36
       0   46.98  -51.33
       0   46.98  -51.33
       0   46.97  -51.32
       0   46.96   -51.3
       0   46.96  -51.29
       0   46.95  -51.28
       0   46.94  -51.27
       0   46.93  -51.26
       0   46.93  -51.24
       0   46.92  -51.23
       0   46.91  -51.22
       0    46.9  -51.21
       0    46.9  -51.19
       0   46.89  -51.18
       0   46.88  -51.17
       0   46.87  -51.16
       0   46.87  -51.14
       0   46.86  -51.13
       0   46.85  -51.12
       0   46.84  -51.11
       0   46.84   -51.1
       0   46.83  -51.08
       0   46.82  -51.07
       0   46.82  -51.06
       0   46.81  -51.05
       0    46.8  -51.03
       0   46.79  -51.02
       0   46.79  -51.01
       0   46.78     -51
       0   46.77  -50.98
       0   46.76  -50.97
       0   46.76  -50.97
       0   46.75  -50.95
       0   46.74  -50.94
       0   46.73  -50.92
       0   46.71   -50.9
       0    46.7  -50.88
       0   46.69  -50.87
       0   46.68  -50.85
       0   46.67  -50.83
       0   46.65  -50.81
       0   46.64   -50.8
       0   46.63  -50.78
       0   46.62  -50.76
       0    46.6  -50.74
       0   46.59  -50.73
       0   46.58  -50.71
       0   46.57  -50.69
       0   46.55  -50.67
       0   46.54  -50.66
       0   46.53  -50.64
       0   46.52  -50.62
       0   46.51   -50.6
       0   46.49  -50.59
       0   46.48  -50.57
       0   46.47  -50.55
       0   46.46  -50.53
       0   46.44  -50.52
       0   46.43   -50.5
       0   46.42  -50.48
       0   46.41  -50.46
       0   46.41  -50.46
       0   46.39  -50.46
       0   46.38  -50.45
       0   46.36  -50.45
       0   46.35  -50.44
       0   46.33  -50.43
       0   46.32  -50.43
       0    46.3  -50.42
       0   46.29  -50.41
       0   46.27  -50.41
       0   46.25   -50.4
       0   46.24   -50.4
       0   46.22  -50.39
       0   46.21  -50.38
       0   46.19  -50.38
       0   46.18  -50.37
       0   46.16  -50.36
       0   46.15  -50.36
       0   46.13  -50.35
       0   46.12  -50.35
       0    46.1  -50.34
       0   46.09  -50.33
       0   46.07  -50.33
       0   46.06  -50.32
       0   46.04  -50.31
       0   46.03  -50.31
       0   46.01   -50.3
       0      46   -50.3
       0   45.98  -50.29
       0   45.96  -50.28
       0   45.96  -50.28
       0   45.93  -50.28
       0    45.9  -50.28
       0   45.86  -50.27
       0   45.83  -50.27
       0   45.79  -50.27
       0   45.76  -50.26
       0   45.72  -50.26
       0   45.69  -50.26
       0   45.65  -50.25
       0   45.62  -50.25
       0   45.59  -50.25
       0   45.55  -50.24
       0   45.52  -50.24
       0   45.48  -50.24
       0   45.45  -50.23
       0   45.41  -50.23
       0   45.38  -50.22
       0   45.34  -50.22
       0   45.31  -50.22
       0   45.28  -50.21
       0   45.24  -50.21
       0   45.21  -50.21
       0   45.17   -50.2
       0   45.14   -50.2
       0    45.1   -50.2
       0   45.07  -50.19
       0   45.03  -50.19
       0      45  -50.19
       0   44.97  -50.18
       0   44.97  -50.18
       0   44.95  -50.18
       0   44.94  -50.17
       0   44.93  -50.16
       0   44.92  -50.16
       0   44.91  -50.15
       0   44.89  -50.14
       0   44.88  -50.13
       0   44.87  -50.13
       0   44.86  -50.12
       0   44.85  -50.11
       0   44.83  -50.11
       0   44.82   -50.1
       0   44.81  -50.09
       0    44.8  -50.09
       0   44.78  -50.08
       0   44.77  -50.07
       0   44.76  -50.06
       0   44.75  -50.06
       0   44.74  -50.05
       0   44.72  -50.04
       0   44.71  -50.04
       0    44.7  -50.03
       0   44.69  -50.02
       0   44.68  -50.01
       0   44.66  -50.01
       0   44.65     -50
       0   44.64  -49.99
       0   44.63  -49.99
       0   44.62  -49.98
       0   44.62  -49.98
       0   44.58  -49.98
       0   44.54  -49.98
       0    44.5  -49.98
       0   44.46  -49.98
       0   44.42  -49.99
       0   44.38  -49.99
       0   44.34  -49.99
       0    44.3  -49.99
       0   44.26  -49.99
       0   44.22  -49.99
       0   44.18  -49.99
       0   44.15     -50
       0   44.11     -50
       0   44.07     -50
       0   44.03     -50
       0   43.99     -50
       0   43.95     -50
       0   43.91     -50
       0   43.87  -50.01
       0   43.83  -50.01
       0   43.79  -50.01
       0   43.75  -50.01
       0   43.72  -50.01
       0   43.68  -50.01
       0   43.64  -50.01
       0    43.6  -50.01
       0   43.56  -50.02
       0   43.52  -50.02
       0   43.48  -50.02
       0   43.48  -50.02
       0   43.47  -50.01
       0   43.46     -50
       0   43.45  -49.99
       0   43.44  -49.99
       0   43.44  -49.98
       0   43.43  -49.97
       0   43.42  -49.96
       0   43.41  -49.96
       0    43.4  -49.95
       0   43.39  -49.94
       0   43.38  -49.93
       0   43.37  -49.92
       0   43.36  -49.92
       0   43.36  -49.91
       0   43.35   -49.9
       0   43.34  -49.89
       0   43.33  -49.88
       0   43.32  -49.88
       0   43.31  -49.87
       0    43.3  -49.86
       0   43.29  -49.85
       0   43.29  -49.85
       0   43.28  -49.84
       0   43.27  -49.83
       0   43.26  -49.82
       0   43.25  -49.81
       0   43.24  -49.81
       0   43.23   -49.8
       0   43.22  -49.79
       0   43.22  -49.79
       0   43.22  -49.76
       0   43.21  -49.74
       0   43.21  -49.71
       0    43.2  -49.68
       0    43.2  -49.65
       0   43.19  -49.63
       0   43.19   -49.6
       0   43.18  -49.57
       0   43.18  -49.54
       0   43.17  -49.52
       0   43.16  -49.49
       0   43.16  -49.46
       0   43.15  -49.43
       0   43.15  -49.41
       0   43.14  -49.38
       0   43.14  -49.35
       0   43.13  -49.32
       0   43.13   -49.3
       0   43.12  -49.27
       0   43.12  -49.24
       0   43.11  -49.21
       0   43.11  -49.19
       0    43.1  -49.16
       0    43.1  -49.13
       0   43.09   -49.1
       0   43.09  -49.08
       0   43.08  -49.05
       0   43.07  -49.02
       0   43.07  -48.99
       0   43.07  -48.99
       0    43.1  -48.99
       0   43.13  -48.99
       0   43.16  -48.99
       0    43.2  -48.99
       0   43.23  -48.99
       0   43.26  -48.99
       0   43.29  -48.99
       0   43.32  -48.99
       0   43.35  -48.99
       0   43.39  -48.99
       0   43.42  -48.99
       0   43.45  -48.99
       0   43.48  -48.99
       0   43.51  -48.99
       0   43.54  -48.99
       0   43.58  -48.99
       0   43.61  -48.99
       0   43.64  -48.99
       0   43.67  -48.99
       0    43.7  -48.99
       0   43.73  -48.99
       0   43.77  -48.99
       0    43.8  -48.99
       0   43.83  -48.99
       0   43.86  -48.99
       0   43.89  -48.99
       0   43.92  -48.99
       0   43.96  -48.99
       0   43.99  -48.99
       0   43.99  -48.99
       0   44.02  -48.99
       0   44.06  -48.99
       0    44.1     -49
       0   44.13     -49
       0   44.17     -49
       0   44.21     -49
       0   44.24     -49
       0   44.28     -49
       0   44.32     -49
       0   44.35     -49
       0   44.39  -49.01
       0   44.43  -49.01
       0   44.46  -49.01
       0    44.5  -49.01
       0   44.54  -49.01
       0   44.58  -49.01
       0   44.61  -49.01
       0   44.65  -49.01
       0   44.69  -49.01
       0   44.72  -49.02
       0   44.76  -49.02
       0    44.8  -49.02
       0   44.83  -49.02
       0   44.87  -49.02
       0   44.91  -49.02
       0   44.94  -49.02
       0   44.98  -49.02
       0   45.02  -49.02
       0   45.05  -49.03
       0   45.05  -49.03
       0   45.09  -49.03
       0   45.12  -49.03
       0   45.15  -49.03
       0   45.19  -49.04
       0   45.22  -49.04
       0   45.25  -49.04
       0   45.29  -49.04
       0   45.32  -49.04
       0   45.35  -49.05
       0   45.39  -49.05
       0   45.42  -49.05
       0   45.45  -49.05
       0   45.49  -49.06
       0   45.52  -49.06
       0   45.55  -49.06
       0   45.59  -49.06
       0   45.62  -49.07
       0   45.65  -49.07
       0   45.69  -49.07
       0   45.72  -49.07
       0   45.75  -49.08
       0   45.79  -49.08
       0   45.82  -49.08
       0   45.86  -49.08
       0   45.89  -49.09
       0   45.92  -49.09
       0   45.96  -49.09
       0   45.99  -49.09
       0   46.02  -49.09
       0   46.02  -49.09
       0   46.06  -49.09
       0   46.09  -49.09
       0   46.12  -49.09
       0   46.16  -49.09
       0   46.19  -49.09
       0   46.22  -49.09
       0   46.26  -49.08
       0   46.29  -49.08
       0   46.32  -49.08
       0   46.36  -49.08
       0   46.39  -49.08
       0   46.43  -49.08
       0   46.46  -49.08
       0   46.49  -49.07
       0   46.53  -49.07
       0   46.56  -49.07
       0   46.59  -49.07
       0   46.63  -49.07
       0   46.66  -49.07
       0   46.69  -49.07
       0   46.73  -49.06
       0   46.76  -49.06
       0    46.8  -49.06
       0   46.83  -49.06
       0   46.86  -49.06
       0    46.9  -49.06
       0   46.93  -49.05
       0   46.96  -49.05
       0      47  -49.05
       0      47  -49.05
       0   47.01  -49.05
       0   47.03  -49.05
       0   47.05  -49.05
       0   47.06  -49.04
       0   47.08  -49.04
       0   47.09  -49.04
       0   47.11  -49.04
       0   47.12  -49.04
       0   47.14  -49.03
       0   47.16  -49.03
       0   47.17  -49.03
       0   47.19  -49.03
       0    47.2  -49.03
       0   47.22  -49.02
       0   47.24  -49.02
       0   47.25  -49.02
       0   47.27  -49.02
       0   47.28  -49.02
       0    47.3  -49.01
       0   47.31  -49.01
       0   47.33  -49.01
       0   47.35  -49.01
       0   47.36  -49.01
       0   47.38     -49
       0   47.39     -49
       0   47.41     -49
       0   47.43     -49
       0   47.44     -49
       0   47.46  -48.99
       0   47.46  -48.99
       0   47.48  -49.01
       0   47.49  -49.02
       0   47.51  -49.04
       0   47.53  -49.05
       0   47.55  -49.07
       0   47.57  -49.08
       0   47.59   -49.1
       0   47.61  -49.11
       0   47.63  -49.13
       0   47.64  -49.14
       0   47.66  -49.16
       0   47.68  -49.17
       0    47.7  -49.19
       0   47.72   -49.2
       0   47.74  -49.22
       0   47.76  -49.24
       0   47.78  -49.25
       0    47.8  -49.27
       0   47.81  -49.28
       0   47.83   -49.3
       0   47.85  -49.31
       0   47.87  -49.33
       0   47.89  -49.34
       0   47.91  -49.36
       0   47.93  -49.37
       0   47.95  -49.39
       0   47.97   -49.4
       0   47.98  -49.42
       0      48  -49.43
       0      48  -49.43
       0   48.04  -49.45
       0   48.07  -49.47
       0   48.11  -49.49
       0   48.14  -49.51
       0   48.18  -49.53
       0   48.21  -49.55
       0   48.25  -49.57
       0   48.28  -49.59
       0   48.32  -49.61
       0   48.35  -49.63
       0   48.39  -49.65
       0   48.42  -49.67
       0   48.46  -49.69
       0   48.49  -49.71
       0   48.53  -49.73
       0   48.57  -49.75
       0    48.6  -49.77
       0   48.64   -49.8
       0   48.67  -49.82
       0   48.71  -49.84
       0   48.74  -49.86
       0   48.78  -49.88
       0   48.81   -49.9
       0   48.85  -49.92
       0   48.88  -49.94
       0   48.92  -49.96
       0   48.95  -49.98
       0   48.99     -50
       0   49.02  -50.02
       0   49.02  -50.02
       0   49.06  -50.05
       0   49.09  -50.09
       0   49.12  -50.13
       0   49.16  -50.16
       0   49.19   -50.2
       0   49.23  -50.23
       0   49.26  -50.27
       0   49.29   -50.3
       0   49.33  -50.34
       0   49.36  -50.37
       0    49.4  -50.41
       0   49.43  -50.45
       0   49.46  -50.48
       0    49.5  -50.52
       0   49.53  -50.55
       0   49.57  -50.59
       0    49.6  -50.63
       0   49.63  -50.66
       0   49.67   -50.7
       0    49.7  -50.73
       0   49.74  -50.77
       0   49.77  -50.81
       0    49.8  -50.84
       0   49.84  -50.88
       0   49.87  -50.91
       0   49.91  -50.95
       0   49.94  -50.99
       0   49.97  -51.02
       0   50.01  -51.06
       0   50.01  -51.06
       0   50.04  -51.08
       0   50.08  -51.11
       0   50.11  -51.13
       0   50.15  -51.16
       0   50.18  -51.18
       0   50.22   -51.2
       0   50.25  -51.23
       0   50.28  -51.25
       0   50.32  -51.28
       0   50.35   -51.3
       0   50.39  -51.33
       0   50.42  -51.35
       0   50.46  -51.38
       0   50.49   -51.4
       0   50.53  -51.42
       0   50.56  -51.45
       0    50.6  -51.47
       0   50.63   -51.5
       0   50.67  -51.52
       0    50.7  -51.55
       0   50.74  -51.57
       0   50.77   -51.6
       0   50.81  -51.62
       0   50.84  -51.65
       0   50.88  -51.67
       0   50.91   -51.7
       0   50.94  -51.72
       0   50.98  -51.74
       0   51.01  -51.77
       0   51.01  -51.77
       0   51.03  -51.78
       0   51.04  -51.78
       0   51.06  -51.79
       0   51.07   -51.8
       0   51.09  -51.81
       0    51.1  -51.81
       0   51.12  -51.82
       0   51.13  -51.83
       0   51.15  -51.84
       0   51.17  -51.84
       0   51.18  -51.85
       0    51.2  -51.86
       0   51.21  -51.87
       0   51.23  -51.87
       0   51.24  -51.88
       0   51.26  -51.89
       0   51.27   -51.9
       0   51.29   -51.9
       0    51.3  -51.91
       0   51.32  -51.92
       0   51.33  -51.93
       0   51.35  -51.93
       0   51.36  -51.94
       0   51.38  -51.95
       0   51.39  -51.96
       0   51.41  -51.96
       0   51.42  -51.97
       0   51.44  -51.98
       0   51.45  -51.99
       0   51.45  -51.99
       0   51.47     -52
       0   51.49  -52.01
       0   51.51  -52.03
       0   51.53  -52.04
       0   51.55  -52.05
       0   51.57  -52.07
       0   51.59  -52.08
       0   51.61   -52.1
       0   51.63  -52.11
       0   51.65  -52.12
       0   51.67  -52.14
       0   51.69  -52.15
       0   51.71  -52.16
       0   51.73  -52.18
       0   51.75  -52.19
       0   51.77  -52.21
       0   51.79  -52.22
       0   51.81  -52.23
       0   51.83  -52.25
       0   51.85  -52.26
       0   51.87  -52.28
       0   51.89  -52.29
       0   51.91   -52.3
       0   51.93  -52.32
       0   51.95  -52.33
       0   51.97  -52.34
       0   51.99  -52.36
       0   52.01  -52.37
       0   52.03  -52.39
       0   52.03  -52.39
       0   52.06  -52.41
       0    52.1  -52.43
       0   52.13  -52.45
       0   52.17  -52.47
       0    52.2   -52.5
       0   52.24  -52.52
       0   52.27  -52.54
       0   52.31  -52.56
       0   52.34  -52.59
       0   52.38  -52.61
       0   52.41  -52.63
       0   52.45  -52.65
       0   52.48  -52.67
       0   52.52   -52.7
       0   52.55  -52.72
       0   52.58  -52.74
       0   52.62  -52.76
       0   52.65  -52.79
       0   52.69  -52.81
       0   52.72  -52.83
       0   52.76  -52.85
       0   52.79  -52.88
       0   52.83   -52.9
       0   52.86  -52.92
       0    52.9  -52.94
       0   52.93  -52.97
       0   52.97  -52.99
       0      53  -53.01
       0   53.04  -53.03
       0   53.04  -53.03
       0   53.07  -53.05
       0   53.11  -53.06
       0   53.14  -53.07
       0   53.18  -53.09
       0   53.21   -53.1
       0   53.24  -53.12
       0   53.28  -53.13
       0   53.31  -53.14
       0   53.35  -53.16
       0   53.38  -53.17
       0   53.42  -53.18
       0   53.45   -53.2
       0   53.49  -53.21
       0   53.52  -53.22
       0   53.55  -53.24
       0   53.59  -53.25
       0   53.62  -53.27
       0   53.66  -53.28
       0   53.69  -53.29
       0   53.73  -53.31
       0   53.76  -53.32
       0    53.8  -53.34
       0   53.83  -53.35
       0   53.87  -53.36
       0    53.9  -53.38
       0   53.93  -53.39
       0   53.97   -53.4
       0      54  -53.42
       0   54.04  -53.43
       0   54.04  -53.43
       0   54.08  -53.44
       0   54.11  -53.45
       0   54.15  -53.46
       0   54.19  -53.47
       0   54.23  -53.48
       0   54.27  -53.48
       0    54.3  -53.49
       0   54.34   -53.5
       0   54.38  -53.51
       0   54.42  -53.52
       0   54.46  -53.53
       0   54.49  -53.54
       0   54.53  -53.54
       0   54.57  -53.55
       0   54.61  -53.56
       0   54.65  -53.57
       0   54.68  -53.58
       0   54.72  -53.59
       0   54.76   -53.6
       0    54.8  -53.61
       0   54.84  -53.61
       0   54.87  -53.62
       0   54.91  -53.63
       0   54.95  -53.64
       0   54.99  -53.65
       0   55.03  -53.66
       0   55.06  -53.67
       0    55.1  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68
       0   55.14  -53.68