Description of algorithm Full domain   Ice concntr, edge pos   Contingency tables American sector European sector Asian sector GODAE regions

Validation of sea ice concentration - Full domain

Bulletin date: 2024-01-04

Data source: OSI SAF N.H. sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 75675 12385 378 474 155 114 183 0 OW 80 879 168 401 134 7 33 0 VODI 0 471 125 535 431 61 23 0 ODI 0 135 72 339 840 195 25 0 CDI 0 95 29 239 889 895 157 16 VCDI 0 48 86 415 1397 7845 22748 57871	...date precedes bulletin

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 75872 11751 275 462 197 144 119 0 OW 79 950 232 312 94 12 35 0 VODI 3 600 144 545 327 38 27 0 ODI 1 204 104 360 532 158 25 0 CDI 1 94 76 325 671 683 148 51 VCDI 0 69 75 555 1710 7705 20212 61071	...date precedes bulletin

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 74722 13299 437 408 185 94 57 0 OW 80 452 244 483 113 4 26 0 VODI 2 151 135 745 343 13 37 0 ODI 2 56 56 448 468 120 29 0 CDI 0 9 27 313 761 1085 78 1 VCDI 0 16 11 316 1464 7985 24260 57513	...date precedes bulletin

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 73628 13287 464 611 186 114 41 0 OW 91 468 179 401 155 7 17 0 VODI 2 214 115 502 472 21 23 0 ODI 1 87 63 335 622 129 21 0 CDI 0 34 49 316 750 674 109 15 VCDI 0 38 32 374 1538 8362 27579 54922	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 73620 13369 473 683 234 114 40 0 OW 99 372 187 367 127 7 15 0 VODI 2 225 98 471 429 23 23 0 ODI 1 87 62 323 592 120 18 0 CDI 0 36 49 301 743 743 124 15 VCDI 0 39 33 394 1598 8300 27570 54922

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 69253 15978 722 989 286 116 66 0 OW 74 444 167 436 229 27 15 0 VODI 0 191 105 377 431 100 21 0 ODI 0 70 63 265 498 291 13 0 CDI 0 27 42 283 658 848 91 64 VCDI 0 11 42 316 1464 8303 25934 57738	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 69253 16090 766 1069 357 124 63 0 OW 74 339 127 355 223 29 14 0 VODI 0 181 103 361 401 95 23 0 ODI 0 69 66 269 435 278 12 0 CDI 0 30 36 296 629 847 86 78 VCDI 0 12 43 316 1521 8312 25942 57724

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70989 14807 877 829 220 68 32 0 OW 91 190 122 492 156 11 6 0 VODI 2 46 65 494 370 46 6 0 ODI 0 7 16 214 627 166 13 0 CDI 0 0 2 140 892 1137 78 3 VCDI 0 4 4 92 1089 7737 25461 59447	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70985 14254 817 815 362 97 41 0 OW 95 418 79 317 134 56 6 0 VODI 2 267 89 387 267 107 22 0 ODI 0 79 62 268 321 182 13 0 CDI 0 29 27 228 633 658 76 0 VCDI 0 7 12 246 1637 8065 25438 59450

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70088 15545 651 915 300 76 0 0 OW 76 224 175 402 221 15 0 0 VODI 0 64 100 414 316 122 11 0 ODI 0 2 17 270 350 183 10 0 CDI 0 0 2 149 543 543 87 29 VCDI 0 0 0 56 1404 7507 24651 61530	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70102 15145 545 743 434 115 0 0 OW 62 417 165 286 139 64 0 0 VODI 0 212 155 415 197 172 11 0 ODI 0 54 65 335 225 207 18 0 CDI 0 7 15 301 517 651 138 26 VCDI 0 0 0 126 1622 7237 24592 61533

Date: :

Best estimate	Forecast
observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70388 14953 592 909 311 80 14 0 OW 60 330 155 354 232 28 0 0 VODI 0 85 105 385 331 137 7 0 ODI 0 6 19 307 339 190 23 0 CDI 0 0 3 164 743 541 79 45 VCDI 0 0 0 45 1406 7236 24108 62338	observations Ice free Ice free near MIZ OW VODI ODI CDI VCDI near MIZ VCDI m o d e l Ice free 70388 14402 523 893 512 130 21 0 OW 60 564 122 256 224 118 10 0 VODI 0 304 143 308 257 216 30 0 ODI 0 81 53 312 206 305 40 1 CDI 0 23 29 273 581 806 229 73 VCDI 0 0 4 122 1582 6637 23901 62309

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