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: 2025-06-03

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

Model vs. observations, sea ice class contingency tables

Date: 2025-06-03:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24275 10690 32 183 19 0 0 0
OW 6 653 40 181 34 5 1 0
VODI 8 1305 95 862 464 105 43 0
ODI 0 469 86 1430 1770 728 426 19
CDI 0 76 34 642 1491 1964 1987 171
VCDI 0 9 1 155 704 1845 2898 762

Date: 2025-06-05:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 25316 12204 126 787 125 13 0 0
OW 0 235 16 210 72 11 7 0
VODI 0 352 30 480 503 122 73 2
ODI 0 233 40 822 1398 849 554 29
CDI 0 50 16 474 1303 2044 1769 225
VCDI 0 7 2 145 686 1902 2475 961

Date: 2025-06-07:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26049 12278 99 990 281 29 11 0
OW 0 125 10 128 97 11 6 0
VODI 0 217 17 361 427 118 127 1
ODI 0 210 45 707 1172 757 636 14
CDI 0 114 17 501 1110 1756 1953 165
VCDI 0 16 8 163 525 1505 3105 807

Date: 2025-06-09:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26818 11713 121 1131 379 38 13 0
OW 0 104 3 103 92 10 16 0
VODI 0 157 14 385 416 142 123 14
ODI 0 253 31 620 1004 707 511 139
CDI 0 148 23 435 963 1145 1367 971
VCDI 0 28 8 156 530 1268 2199 2370


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