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

Validation of sea ice concentration

Bulletin date: 2011-03-16

Model vs. observations, sea ice class contingency tables

Date: 2011-03-10:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 20066 420 215 142 33 VODI 140 198 120 137 92 ODI 66 113 147 171 168 CDI 46 54 149 235 454 VCDI 60 77 197 809 13110	...date precedes bulletin

Date: 2011-03-14:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19565 556 364 213 120 VODI 182 160 176 131 120 ODI 79 137 148 177 165 CDI 46 102 184 287 417 VCDI 55 107 259 1017 12652	...date precedes bulletin

Date: 2011-03-16:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 20021 407 281 193 91 VODI 120 86 165 166 171 ODI 65 91 181 195 231 CDI 49 66 161 295 525 VCDI 77 115 267 1334 12066	observations water VODI ODI CDI VCDI m o d e l water 19969 383 279 203 122 VODI 168 102 142 152 159 ODI 71 75 168 169 273 CDI 48 80 188 267 533 VCDI 76 125 278 1392 11997

Date: 2011-03-18:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 20325 319 251 162 48 VODI 177 210 126 173 108 ODI 119 222 101 173 231 CDI 70 197 158 299 441 VCDI 97 159 239 971 12043	observations water VODI ODI CDI VCDI m o d e l water 20188 289 262 193 68 VODI 267 200 102 139 89 ODI 174 222 94 167 253 CDI 73 210 169 282 505 VCDI 86 186 248 997 11956

Date: 2011-03-22:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19680 543 406 239 35 VODI 380 172 184 208 140 ODI 132 196 165 265 219 CDI 68 110 137 418 561 VCDI 90 111 204 1184 11572	observations water VODI ODI CDI VCDI m o d e l water 19695 512 371 258 39 VODI 334 191 171 165 134 ODI 142 196 178 253 247 CDI 80 110 138 437 587 VCDI 99 123 238 1201 11520

Date: 2011-03-24:

Best estimate	Forecast
observations water VODI ODI CDI VCDI m o d e l water 19010 595 464 337 112 VODI 311 161 211 209 98 ODI 175 128 296 344 216 CDI 86 86 172 509 471 VCDI 66 107 273 1524 11458	observations water VODI ODI CDI VCDI m o d e l water 19068 595 463 344 136 VODI 296 174 217 210 106 ODI 139 86 226 306 221 CDI 61 84 181 514 465 VCDI 84 138 329 1549 11427

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