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

Validation of sea ice concentration

Bulletin date: 2011-01-19

Model vs. observations, sea ice class contingency tables

Date: 2011-01-13:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19410 249 159 213 20 VODI 168 154 113 114 48 ODI 66 75 93 101 40 CDI 42 61 140 245 170 VCDI 29 103 363 1282 13961	...date precedes bulletin

Date: 2011-01-17:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19478 317 235 100 3 VODI 252 108 138 90 40 ODI 65 64 104 96 62 CDI 45 61 105 165 254 VCDI 37 84 221 1261 14034	...date precedes bulletin

Date: 2011-01-19:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19979 232 177 139 6 VODI 132 125 101 70 18 ODI 43 65 171 137 52 CDI 37 33 104 265 225 VCDI 53 80 245 1093 13837	observations water VODI ODI CDI VCDI m o d e l water 19939 227 174 141 7 VODI 154 108 89 55 14 ODI 54 69 148 124 50 CDI 33 39 92 223 208 VCDI 64 92 295 1161 13859

Date: 2011-01-21:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 20221 224 139 78 20 VODI 206 115 76 46 17 ODI 82 107 144 87 39 CDI 52 61 175 190 193 VCDI 80 135 404 1035 13493	observations water VODI ODI CDI VCDI m o d e l water 20189 207 131 76 22 VODI 210 93 66 39 13 ODI 92 112 115 86 35 CDI 50 67 157 181 201 VCDI 100 163 469 1054 13491

Date: 2011-01-25:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19864 304 172 108 55 VODI 196 89 79 67 34 ODI 126 74 93 78 59 CDI 111 78 114 174 250 VCDI 447 202 361 1051 13233	observations water VODI ODI CDI VCDI m o d e l water 19770 287 154 107 56 VODI 243 81 77 53 32 ODI 131 79 90 80 52 CDI 119 71 112 163 248 VCDI 481 229 386 1075 13243

Date: 2011-01-27:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19537 318 239 183 63 VODI 156 102 132 107 30 ODI 56 66 94 172 46 CDI 17 55 112 438 189 VCDI 5 88 254 1701 13259	observations water VODI ODI CDI VCDI m o d e l water 19368 324 247 209 57 VODI 260 77 89 94 24 ODI 86 48 93 143 45 CDI 39 60 108 367 164 VCDI 18 120 294 1788 13297

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