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

Validation of sea ice concentration - European sector

Bulletin date: 2024-01-25

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

Model vs. observations, sea ice class contingency tables

Date: 2024-01-19:

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 61667 12389 154 334 28 0 0 0
OW 20 1708 214 325 78 6 0 0
VODI 0 580 252 509 181 20 0 0
ODI 0 204 81 423 289 49 30 0
CDI 0 46 106 446 777 777 244 0
VCDI 0 2 2 226 788 3578 8764 5119
...date precedes bulletin

Date: 2024-01-21:

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 61658 12371 279 212 30 0 0 0
OW 0 1282 295 462 56 11 0 0
VODI 0 366 164 720 156 30 0 0
ODI 0 147 37 480 323 98 9 0
CDI 0 109 79 356 815 1049 459 14
VCDI 0 2 2 117 741 3029 8230 6228
...date precedes bulletin

Date: 2024-01-23:

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 60669 13300 240 214 27 0 0 0
OW 18 1068 307 575 75 0 0 0
VODI 0 255 141 808 432 3 0 0
ODI 0 76 54 392 664 70 1 0
CDI 0 41 48 249 994 1414 179 9
VCDI 0 6 22 143 590 2802 7908 6622
...date precedes bulletin

Date: 2024-01-25:

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 60743 12751 206 204 26 0 0 0
OW 3 1086 283 481 98 1 0 0
VODI 0 448 194 787 307 61 0 0
ODI 0 163 91 499 547 124 0 0
CDI 0 110 59 389 1148 1221 105 56
VCDI 0 41 44 297 715 3236 8439 5453
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 60745 12858 224 231 33 0 0 0
OW 1 1001 259 468 107 3 0 0
VODI 0 432 200 751 317 56 0 0
ODI 0 166 92 491 524 133 0 0
CDI 0 106 53 422 1164 1214 84 38
VCDI 0 36 49 294 696 3237 8460 5471

Date: 2024-01-27:

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 61168 12165 155 117 8 0 0 0
OW 6 1083 245 425 150 8 0 0
VODI 1 555 199 736 420 62 0 0
ODI 0 200 80 433 680 129 3 0
CDI 0 215 86 363 1157 1000 116 80
VCDI 0 166 89 400 979 3370 7862 5505
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 61170 12245 162 146 10 0 0 0
OW 4 1028 259 411 139 9 0 0
VODI 1 552 180 729 455 64 0 0
ODI 0 190 75 404 694 128 3 0
CDI 0 199 89 385 1131 955 108 55
VCDI 0 170 89 399 965 3413 7870 5530

Date: 2024-01-29:

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 61429 12592 150 115 17 0 0 0
OW 16 1476 472 396 76 0 0 0
VODI 0 189 119 1054 360 17 0 0
ODI 0 97 25 322 659 163 1 0
CDI 0 164 117 440 1038 946 72 0
VCDI 0 11 5 171 919 3597 7886 5305
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 61427 12223 137 128 15 0 0 0
OW 14 1103 282 343 104 27 0 0
VODI 4 585 178 632 334 134 1 0
ODI 0 191 106 455 426 115 4 0
CDI 0 258 100 478 924 562 200 10
VCDI 0 169 85 462 1266 3885 7754 5295

Date: 2024-01-31:

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 61432 12309 171 141 35 0 0 0
OW 18 1383 270 338 78 9 0 0
VODI 1 387 219 733 322 39 0 0
ODI 0 121 37 478 728 163 3 0
CDI 0 231 83 425 1345 989 179 15
VCDI 0 98 51 354 723 3003 8284 5221
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 61386 11808 195 180 69 7 0 0
OW 63 1086 189 354 102 45 0 0
VODI 2 646 148 457 327 130 7 0
ODI 0 278 109 415 463 95 24 0
CDI 0 498 110 575 1193 637 269 11
VCDI 0 213 80 488 1077 3289 8166 5225

Date: 2024-02-02:

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 59874 13032 254 340 42 0 0 0
OW 16 1143 209 529 123 11 0 0
VODI 0 391 133 802 419 69 0 0
ODI 0 142 48 362 738 189 24 0
CDI 0 229 63 412 1179 1535 462 73
VCDI 0 213 62 293 483 3146 8307 5069
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 59788 12495 291 635 138 3 0 0
OW 94 971 145 384 223 41 4 0
VODI 8 638 103 455 389 127 38 0
ODI 0 286 75 393 480 166 31 0
CDI 0 368 63 358 1033 991 340 2
VCDI 0 392 92 513 721 3622 8380 5140


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