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

Validation of sea ice concentration

Bulletin date: 2012-01-11

Model vs. observations, sea ice class contingency tables

Date: 2012-01-05:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 23434 442 149 75 37 VODI 218 182 148 173 53 ODI 84 107 148 421 187 CDI 32 83 121 597 753 VCDI 0 30 116 1013 8816	...date precedes bulletin

Date: 2012-01-09:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22616 477 259 294 36 VODI 107 142 136 308 57 ODI 39 71 79 327 168 CDI 12 48 55 570 420 VCDI 0 13 54 1317 9814	...date precedes bulletin

Date: 2012-01-11:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22750 553 188 108 27 VODI 131 209 174 180 40 ODI 13 112 140 319 194 CDI 2 34 75 489 579 VCDI 0 10 32 804 10256	observations water VODI ODI CDI VCDI m o d e l water 22649 523 203 150 62 VODI 155 147 109 199 82 ODI 41 92 107 195 171 CDI 28 61 87 360 457 VCDI 23 95 103 996 10324

Date: 2012-01-13:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22352 598 299 154 21 VODI 118 135 201 200 28 ODI 45 85 98 281 121 CDI 28 42 71 393 520 VCDI 3 11 20 388 11207	observations water VODI ODI CDI VCDI m o d e l water 22229 550 284 178 58 VODI 173 131 159 230 59 ODI 75 77 93 228 182 CDI 28 56 81 274 455 VCDI 41 57 72 506 11143

Date: 2012-01-17:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 22455 500 187 172 40 VODI 126 294 218 159 58 ODI 68 69 177 308 179 CDI 44 77 84 411 624 VCDI 1 52 103 464 10549	observations water VODI ODI CDI VCDI m o d e l water 22335 489 163 216 93 VODI 212 262 207 136 127 ODI 68 87 157 261 200 CDI 53 63 107 333 546 VCDI 26 91 135 568 10484

Date: 2012-01-19:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 23502 541 117 68 45 VODI 157 299 256 114 50 ODI 28 118 178 272 245 CDI 5 61 129 281 715 VCDI 0 19 104 408 9707	observations water VODI ODI CDI VCDI m o d e l water 22781 283 83 69 102 VODI 468 242 69 49 120 ODI 181 203 136 100 201 CDI 107 149 197 188 490 VCDI 155 161 299 737 9849

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