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

Validation of sea ice concentration - Asian sector

Bulletin date: 2022-06-16

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

Model vs. observations, sea ice class contingency tables

Date: 2022-06-10:

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 7 820 121 58 17 0 0 0
OW 0 188 134 230 27 3 11 0
VODI 0 171 145 363 201 82 13 0
ODI 0 187 111 393 546 454 98 0
CDI 0 351 162 571 1812 1951 1252 0
VCDI 0 133 108 423 465 5648 13396 1430
...date precedes bulletin

Date: 2022-06-12:

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 19 967 133 91 23 0 0 0
OW 0 230 154 260 59 1 1 0
VODI 0 246 164 355 257 69 23 0
ODI 0 230 148 444 697 462 100 0
CDI 0 301 215 751 1482 2364 1062 0
VCDI 0 88 55 349 722 6356 11326 1878
...date precedes bulletin

Date: 2022-06-14:

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 0 1389 707 180 34 31 1 0
OW 0 152 268 263 146 9 0 0
VODI 0 90 194 572 505 59 6 0
ODI 0 66 107 563 1422 561 57 0
CDI 0 118 91 352 1182 2010 1094 0
VCDI 0 17 17 71 1395 6279 10025 2049
...date precedes bulletin

Date: 2022-06-16:

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 0 1569 632 189 40 9 30 0
OW 0 180 291 370 133 23 19 0
VODI 0 115 150 733 674 168 24 0
ODI 0 57 123 482 1105 484 95 0
CDI 0 124 117 270 876 1949 1809 0
VCDI 0 6 17 131 955 5755 10242 2136
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 1615 724 279 73 19 32 0
OW 0 159 217 348 131 17 18 0
VODI 0 93 134 657 637 132 23 0
ODI 0 54 121 489 1084 496 108 0
CDI 0 126 120 274 911 2083 1889 0
VCDI 0 4 14 128 947 5641 10149 2136

Date: 2022-06-18:

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 3 1539 847 231 38 21 28 0
OW 0 232 334 454 201 44 10 0
VODI 0 78 236 781 659 168 29 0
ODI 0 111 111 561 784 405 138 0
CDI 0 117 126 322 792 1616 1971 0
VCDI 0 14 23 160 586 4212 10933 3167
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 3 1658 970 328 58 30 31 0
OW 0 131 242 482 221 43 9 0
VODI 0 66 204 685 634 173 39 0
ODI 0 88 111 525 758 358 137 0
CDI 0 134 125 328 800 1732 2236 0
VCDI 0 14 25 161 589 4130 10657 3167

Date: 2022-06-20:

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 1 2312 757 266 41 12 12 0
OW 0 157 311 466 98 30 24 0
VODI 0 135 230 972 548 116 26 0
ODI 0 85 76 392 880 642 65 0
CDI 0 42 69 244 511 1657 590 0
VCDI 0 0 5 80 675 4925 12084 2546
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 1 2158 782 432 85 25 40 0
OW 0 190 242 479 284 86 29 0
VODI 0 132 155 613 385 208 39 0
ODI 0 98 132 460 580 528 112 0
CDI 0 143 117 328 672 1770 2955 0
VCDI 0 10 20 108 747 4765 9626 2546

Date: 2022-06-22:

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 1 2725 725 288 40 18 13 0
OW 0 196 355 665 171 25 35 0
VODI 0 156 235 690 416 145 35 0
ODI 0 80 58 341 603 657 104 0
CDI 0 47 82 247 645 1571 637 0
VCDI 0 0 7 50 684 5709 12225 1401
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 1 2487 683 488 126 27 42 0
OW 0 271 239 438 173 79 40 0
VODI 0 188 246 504 272 226 82 0
ODI 0 98 158 490 496 612 122 0
CDI 0 150 114 291 794 2153 3470 0
VCDI 0 10 22 70 698 5028 9293 1401

Date: 2022-06-24:

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 8 3265 519 285 64 8 6 0
OW 0 403 345 516 132 42 27 0
VODI 0 190 244 510 306 162 97 0
ODI 0 100 53 344 512 557 265 0
CDI 0 65 127 278 801 1835 688 0
VCDI 0 0 3 26 352 5586 13220 141
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8 3032 493 427 102 46 25 0
OW 0 397 262 271 148 70 73 0
VODI 0 286 271 428 213 172 178 0
ODI 0 127 106 474 489 683 256 0
CDI 0 179 129 316 795 2114 3698 0
VCDI 0 2 30 43 420 5105 10073 141


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