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

Validation of sea ice concentration - Asian sector

Bulletin date: 2023-10-12

Data source: OSI SAF N.H. multi-product sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2023-10-06:

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 11138 6365 16 4 0 0 0 0
OW 0 663 162 323 53 0 0 0
VODI 0 106 108 278 143 47 0 0
ODI 0 12 20 233 155 54 3 0
CDI 0 4 12 165 428 356 56 0
VCDI 0 0 0 48 288 2147 5463 4246
...date precedes bulletin

Date: 2023-10-08:

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 9807 6994 70 69 5 0 0 0
OW 24 703 191 477 36 0 0 0
VODI 0 77 99 455 235 42 0 0
ODI 0 5 9 233 150 117 1 0
CDI 0 0 2 139 367 254 70 0
VCDI 0 0 0 11 238 1710 5864 4642
...date precedes bulletin

Date: 2023-10-10:

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 8939 7164 258 208 0 0 0 0
OW 71 325 177 730 26 0 0 0
VODI 10 0 1 441 344 0 0 0
ODI 0 0 0 77 407 7 0 0
CDI 0 0 0 21 384 433 92 0
VCDI 0 0 0 0 63 1130 5599 6189
...date precedes bulletin

Date: 2023-10-12:

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 8866 6207 243 448 12 0 0 0
OW 46 824 90 499 121 0 0 0
VODI 8 113 37 382 458 3 0 0
ODI 2 0 0 47 396 51 0 0
CDI 0 0 0 16 351 332 0 0
VCDI 0 0 0 0 90 1728 5572 6154
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8879 6383 235 472 14 0 0 0
OW 32 673 103 539 126 0 0 0
VODI 8 88 32 316 509 6 0 0
ODI 3 0 0 49 380 69 0 0
CDI 0 0 0 16 291 509 32 0
VCDI 0 0 0 0 108 1530 5540 6154

Date: 2023-10-14:

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 7638 6534 335 374 46 0 0 0
OW 92 732 224 487 169 0 0 0
VODI 14 238 84 558 468 41 0 0
ODI 0 10 0 66 334 167 0 0
CDI 0 0 0 34 278 370 14 0
VCDI 0 0 0 0 155 1596 5203 6835
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 7652 6716 360 465 36 0 0 0
OW 78 623 212 523 179 0 0 0
VODI 14 164 70 394 528 62 0 0
ODI 0 11 1 94 298 197 0 0
CDI 0 0 0 40 239 426 20 0
VCDI 0 0 0 3 170 1489 5197 6835

Date: 2023-10-16:

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 4695 8127 518 369 30 0 0 0
OW 19 479 173 600 63 0 0 0
VODI 2 51 65 728 435 4 0 0
ODI 0 0 0 125 778 59 0 0
CDI 0 0 0 8 651 948 0 0
VCDI 0 0 0 0 131 1376 4938 7724
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 4669 8074 512 665 110 0 0 0
OW 45 482 163 453 282 19 0 0
VODI 2 90 81 541 830 127 0 0
ODI 0 11 0 131 401 420 6 0
CDI 0 0 0 40 217 572 74 0
VCDI 0 0 0 0 248 1249 4858 7724

Date: 2023-10-18:

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 3906 5966 477 1178 194 2 0 0
OW 27 664 235 791 344 68 0 0
VODI 8 98 42 368 690 63 0 0
ODI 2 30 3 150 639 326 0 0
CDI 0 0 0 20 246 838 319 0
VCDI 0 0 0 0 150 1200 4663 9389
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 3889 6256 538 1300 462 29 1 0
OW 30 384 140 564 486 146 6 0
VODI 22 95 74 406 521 270 24 0
ODI 2 20 4 148 343 636 164 0
CDI 0 3 1 77 235 539 561 0
VCDI 0 0 0 12 216 877 4226 9389

Date: 2023-10-20:

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 3797 3883 330 661 496 0 0 0
OW 10 442 188 925 999 187 0 0
VODI 15 70 61 671 1092 341 0 0
ODI 1 19 8 146 529 447 0 0
CDI 0 6 3 64 440 955 73 0
VCDI 0 0 0 3 319 1811 6525 7579
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 3768 3975 340 1025 1024 70 0 0
OW 33 335 130 646 1077 277 0 0
VODI 20 88 85 419 711 590 0 0
ODI 2 20 29 180 352 646 38 0
CDI 0 2 6 153 289 809 542 0
VCDI 0 0 0 47 422 1349 6018 7579


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