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

Validation of sea ice concentration - European sector

Bulletin date: 2024-03-14

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

Model vs. observations, sea ice class contingency tables

Date: 2024-03-08:

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 57591 13678 89 74 14 3 2 0
OW 639 1342 262 304 64 13 18 0
VODI 1783 458 223 577 369 48 18 0
ODI 1827 168 96 394 589 327 41 0
CDI 0 106 48 297 822 2507 1482 0
VCDI 0 16 16 43 404 2522 9432 4156
...date precedes bulletin

Date: 2024-03-10:

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 57375 13290 108 83 27 9 1 0
OW 623 1404 242 300 94 19 11 0
VODI 1770 548 237 559 378 87 24 0
ODI 1843 182 117 446 589 426 78 0
CDI 0 94 59 286 841 2769 1849 0
VCDI 0 8 8 21 195 1922 8710 5230
...date precedes bulletin

Date: 2024-03-12:

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 57263 13730 71 37 17 6 0 0
OW 716 1501 279 288 33 12 0 0
VODI 1763 251 267 853 408 61 7 0
ODI 1855 36 33 308 811 442 20 0
CDI 0 9 13 115 678 2574 930 0
VCDI 0 0 1 14 116 2340 10915 4089
...date precedes bulletin

Date: 2024-03-14:

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 56954 13730 131 106 17 0 0 0
OW 694 1409 260 385 111 6 0 0
VODI 1751 379 219 580 430 100 10 0
ODI 1869 43 63 263 594 452 37 0
CDI 0 17 13 185 551 2248 1367 0
VCDI 0 19 10 56 239 2169 10457 4938
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 56976 13779 124 118 20 0 0 0
OW 672 1372 265 376 96 12 1 0
VODI 1754 360 221 570 448 102 11 0
ODI 1866 47 64 286 597 498 40 0
CDI 0 18 13 173 568 2231 1243 0
VCDI 0 21 9 52 213 2132 10576 4938

Date: 2024-03-16:

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 55885 14198 219 169 56 0 0 0
OW 686 1444 214 360 176 24 0 0
VODI 1741 491 196 482 354 130 13 0
ODI 1882 98 90 347 543 339 30 0
CDI 0 34 32 254 794 2195 1245 0
VCDI 0 11 18 73 324 2499 10113 5103
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 55892 14260 232 183 48 0 0 0
OW 679 1398 195 348 194 28 1 0
VODI 1744 482 213 480 353 136 15 0
ODI 1879 88 79 364 532 379 40 0
CDI 0 37 31 238 799 2139 1250 0
VCDI 0 11 19 72 321 2505 10095 5103

Date: 2024-03-18:

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 55621 14701 174 164 48 1 0 0
OW 733 1375 313 304 149 27 1 0
VODI 1740 308 245 627 379 129 12 0
ODI 1885 30 52 290 552 427 36 0
CDI 0 13 25 110 619 1888 770 0
VCDI 0 0 13 84 402 1936 11620 5059
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 55652 14248 198 178 62 2 0 0
OW 702 1416 211 254 171 59 6 0
VODI 1736 558 226 425 273 147 17 0
ODI 1889 136 95 348 391 568 64 0
CDI 0 58 62 259 779 1734 1675 0
VCDI 0 11 30 115 473 1898 10677 5059

Date: 2024-03-20:

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 56711 13767 95 80 34 1 0 0
OW 753 1358 253 312 121 38 0 0
VODI 1740 425 203 487 321 118 9 0
ODI 1884 119 66 266 464 374 79 0
CDI 0 75 48 189 500 1440 1268 0
VCDI 0 25 43 169 504 1689 10588 6246
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 56741 13226 135 130 62 12 0 0
OW 722 1454 166 257 139 82 6 0
VODI 1736 607 170 355 285 169 32 0
ODI 1889 242 104 266 319 459 108 0
CDI 0 162 88 317 617 1198 1610 0
VCDI 0 78 45 178 522 1740 10188 6246

Date: 2024-03-22:

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 56278 13704 113 118 56 4 0 0
OW 729 1403 233 297 138 41 1 0
VODI 1746 538 192 437 308 165 36 0
ODI 1875 171 90 274 395 452 142 0
CDI 0 127 88 281 417 931 1918 4
VCDI 0 11 21 190 486 1316 9954 7182
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 56287 13582 190 267 101 16 5 0
OW 718 1248 180 270 251 117 16 0
VODI 1743 593 121 230 230 299 78 0
ODI 1880 270 99 256 185 288 272 0
CDI 0 212 92 377 499 866 1755 3
VCDI 0 49 55 197 534 1323 9925 7183


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