Description of algorithm Interpretation of results RMS, ice class areas Contingency tables Sea ice concentration maps

Validation of sea ice concentration

Bulletin date: 2011-10-12

Model vs. observations, sea ice class contingency tables

Date: 2011-10-06:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 29827 242 126 79 4 VODI 59 31 106 77 11 ODI 15 17 56 105 40 CDI 5 16 65 150 102 VCDI 4 58 72 886 5266	...date precedes bulletin

Date: 2011-10-10:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 29240 334 143 75 16 VODI 43 108 101 68 16 ODI 5 31 109 108 36 CDI 1 20 82 129 54 VCDI 0 9 96 795 5800	...date precedes bulletin

Date: 2011-10-12:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 28959 454 177 81 39 VODI 48 114 123 67 30 ODI 1 41 117 61 31 CDI 0 7 77 127 69 VCDI 0 4 100 721 5971	observations water VODI ODI CDI VCDI m o d e l water 28937 389 173 68 36 VODI 61 147 92 80 31 ODI 9 51 122 69 27 CDI 1 29 83 110 90 VCDI 0 4 124 730 5956

Date: 2011-10-14:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 28970 453 193 74 28 VODI 56 112 90 64 40 ODI 21 41 56 60 64 CDI 6 41 65 79 106 VCDI 0 37 194 540 6029	observations water VODI ODI CDI VCDI m o d e l water 28907 379 164 73 33 VODI 91 120 64 66 48 ODI 34 84 79 54 67 CDI 14 40 90 97 100 VCDI 7 61 201 527 6019

Date: 2011-10-18:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 28894 274 131 118 48 VODI 190 119 52 52 31 ODI 44 76 40 61 40 CDI 9 68 71 87 82 VCDI 1 70 240 636 5985	observations water VODI ODI CDI VCDI m o d e l water 28806 210 118 125 51 VODI 237 141 65 60 30 ODI 70 95 32 50 51 CDI 19 75 65 89 76 VCDI 6 86 254 630 5978

Date: 2011-10-20:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 29005 364 136 75 21 VODI 140 102 63 63 27 ODI 47 37 33 53 44 CDI 29 36 61 83 77 VCDI 26 63 151 459 6224	observations water VODI ODI CDI VCDI m o d e l water 28661 237 144 84 26 VODI 335 137 43 46 21 ODI 165 82 33 61 46 CDI 41 61 51 88 95 VCDI 45 85 173 454 6205

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