Description of algorithm Full domain American sector European sector Asian sector   Ice concntr, edge pos   Contingency tables GODAE regions

Validation of sea ice concentration - Asian sector

Bulletin date: 2021-12-09

Data source: OSI SAF N.H. sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2021-12-03:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 517 14 61 25 0 0 0 OW 0 81 14 88 46 2 0 0 VODI 0 36 10 85 77 13 0 0 ODI 0 28 1 39 100 61 0 0 CDI 0 2 2 23 96 147 0 14 VCDI 0 0 0 3 70 638 5318 24471	...date precedes bulletin

Date: 2021-12-05:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 513 8 49 15 0 0 0 OW 0 113 9 72 25 0 0 0 VODI 0 79 11 78 56 0 0 0 ODI 0 33 2 80 82 3 0 0 CDI 0 19 2 27 176 49 6 45 VCDI 0 0 0 13 171 1115 5514 23717	...date precedes bulletin

Date: 2021-12-07:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 587 17 58 21 0 0 0 OW 0 96 9 60 37 5 0 0 VODI 0 52 2 50 71 14 0 0 ODI 0 27 2 28 60 37 0 0 CDI 0 9 3 22 70 121 11 21 VCDI 0 0 1 10 111 620 5977 23873	...date precedes bulletin

Date: 2021-12-09:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 528 17 71 33 0 0 0 OW 0 102 9 44 54 5 0 0 VODI 0 62 3 47 72 13 0 0 ODI 0 22 6 45 92 63 0 0 CDI 0 8 4 27 137 105 5 13 VCDI 0 0 0 24 209 999 6018 23245	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 570 19 88 71 0 0 0 OW 0 70 7 35 31 5 0 0 VODI 0 58 4 43 70 23 0 0 ODI 0 22 6 42 111 55 0 0 CDI 0 2 3 28 119 111 5 4 VCDI 0 0 0 22 195 991 6018 23254

Date: 2021-12-11:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 442 16 94 26 0 0 0 OW 0 114 11 48 54 0 0 0 VODI 0 49 6 86 59 0 0 0 ODI 0 23 5 70 89 2 0 0 CDI 0 15 1 48 151 30 16 2 VCDI 0 9 3 30 324 867 5857 23535	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 495 19 115 61 0 0 0 OW 0 72 10 46 37 0 0 0 VODI 0 45 5 77 61 0 0 0 ODI 0 21 4 60 98 2 0 0 CDI 0 15 2 48 134 28 16 3 VCDI 0 4 2 30 312 869 5857 23534

Date: 2021-12-13:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 446 14 93 4 0 0 0 OW 0 116 16 101 25 0 0 0 VODI 0 49 6 115 108 0 0 0 ODI 0 9 2 34 156 23 0 0 CDI 0 3 0 20 160 92 14 41 VCDI 0 0 0 26 293 1213 5070 23833	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 411 21 127 42 0 0 0 OW 0 100 4 52 51 0 0 0 VODI 0 58 7 61 63 4 0 0 ODI 0 27 3 58 78 41 0 0 CDI 0 20 2 49 119 69 11 3 VCDI 0 7 1 42 393 1214 5073 23871

Date: 2021-12-15:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 397 18 80 14 0 0 0 OW 0 51 6 110 50 1 0 0 VODI 0 18 6 57 154 23 0 0 ODI 0 2 1 23 104 64 0 0 CDI 0 0 0 8 95 166 37 15 VCDI 0 0 0 0 128 828 6998 22628	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 349 19 106 38 7 0 0 OW 0 71 3 67 75 13 0 0 VODI 0 40 6 51 82 32 0 0 ODI 0 8 2 28 62 85 0 0 CDI 0 0 1 22 74 91 19 18 VCDI 0 0 0 4 214 854 7016 22625

Date: 2021-12-17:

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 283 13 48 9 0 0 0 OW 0 68 8 76 23 0 0 0 VODI 0 13 5 162 77 4 0 0 ODI 0 4 1 36 163 19 0 0 CDI 0 0 0 20 136 123 4 2 VCDI 0 0 0 8 123 586 3797 26271	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 0 329 21 124 71 6 0 0 OW 0 28 5 147 102 13 0 0 VODI 0 10 0 41 153 35 0 0 ODI 0 1 1 19 58 81 3 13 CDI 0 0 0 19 55 103 20 65 VCDI 0 0 0 0 92 494 3778 26195

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