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

Validation of sea ice concentration

Bulletin date: 2011-01-26

Model vs. observations, sea ice class contingency tables

Date: 2011-01-20:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 20009 255 202 115 8 VODI 136 133 113 52 22 ODI 52 90 148 122 46 CDI 41 46 138 254 189 VCDI 49 90 314 1281 13514	...date precedes bulletin

Date: 2011-01-24:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19986 308 179 134 24 VODI 185 107 81 48 32 ODI 118 117 137 42 51 CDI 71 76 188 137 211 VCDI 159 204 472 934 13418	...date precedes bulletin

Date: 2011-01-26:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19699 273 224 185 56 VODI 226 69 92 76 49 ODI 109 58 76 139 60 CDI 84 57 84 290 266 VCDI 180 105 292 1607 13063	observations water VODI ODI CDI VCDI m o d e l water 19707 292 228 206 62 VODI 177 48 76 72 46 ODI 105 30 71 101 55 CDI 96 67 82 273 244 VCDI 213 125 311 1645 13087

Date: 2011-01-28:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19513 281 216 223 64 VODI 136 79 97 127 27 ODI 94 51 93 173 44 CDI 45 49 97 404 215 VCDI 53 140 324 1699 13175	observations water VODI ODI CDI VCDI m o d e l water 19481 286 235 262 70 VODI 147 46 76 118 26 ODI 98 48 75 165 39 CDI 59 64 91 347 212 VCDI 56 156 350 1734 13178

Date: 2011-02-01:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19188 366 196 319 69 VODI 121 104 85 130 24 ODI 47 41 73 138 17 CDI 47 40 98 256 104 VCDI 85 108 298 2086 13379	observations water VODI ODI CDI VCDI m o d e l water 19199 388 225 337 78 VODI 91 81 55 123 23 ODI 49 37 75 118 23 CDI 51 44 93 234 104 VCDI 98 109 302 2117 13365

Date: 2011-02-03:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19400 346 230 385 56 VODI 69 55 73 153 47 ODI 34 39 65 179 75 CDI 34 21 47 356 143 VCDI 49 53 121 1726 13663	observations water VODI ODI CDI VCDI m o d e l water 19349 349 241 389 72 VODI 71 42 56 147 43 ODI 46 34 39 150 70 CDI 44 24 59 301 136 VCDI 76 65 141 1812 13663

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