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

Validation of sea ice concentration

Bulletin date: 2012-01-18

Model vs. observations, sea ice class contingency tables

Date: 2012-01-12:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22852 407 167 94 16 VODI 143 218 187 110 27 ODI 26 116 169 283 109 CDI 1 34 118 446 469 VCDI 1 4 30 786 10606	...date precedes bulletin

Date: 2012-01-16:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22460 493 220 115 22 VODI 157 260 241 115 60 ODI 61 129 211 196 140 CDI 18 127 130 347 561 VCDI 3 45 77 468 10763	...date precedes bulletin

Date: 2012-01-18:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 23240 614 228 108 61 VODI 94 240 245 204 87 ODI 16 77 225 266 289 CDI 3 36 102 278 693 VCDI 0 11 95 364 9843	observations water VODI ODI CDI VCDI m o d e l water 22653 394 173 122 90 VODI 393 179 130 102 85 ODI 139 157 170 151 224 CDI 121 139 206 265 447 VCDI 47 109 216 580 10127

Date: 2012-01-20:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 23052 710 182 83 30 VODI 141 320 287 216 65 ODI 27 96 196 297 241 CDI 7 62 105 389 710 VCDI 1 45 89 678 9390	observations water VODI ODI CDI VCDI m o d e l water 22668 414 105 114 52 VODI 365 340 167 104 80 ODI 99 177 177 178 238 CDI 78 163 158 238 528 VCDI 18 139 252 1029 9538

Date: 2012-01-24:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22178 431 270 170 19 VODI 321 162 160 198 14 ODI 156 148 194 298 54 CDI 60 143 176 621 278 VCDI 1 53 132 999 10183	observations water VODI ODI CDI VCDI m o d e l water 21934 407 239 180 45 VODI 441 139 131 193 29 ODI 194 144 166 207 115 CDI 115 147 140 449 234 VCDI 32 100 256 1257 10125

Date: 2012-01-26:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22621 585 324 109 39 VODI 105 183 204 186 45 ODI 21 87 170 381 104 CDI 5 21 109 500 385 VCDI 0 7 62 858 10308	observations water VODI ODI CDI VCDI m o d e l water 21908 359 242 124 89 VODI 460 171 158 163 35 ODI 203 107 125 208 120 CDI 130 103 88 353 384 VCDI 51 143 256 1186 10253

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