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: 2025-09-25

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

Model vs. observations, sea ice class contingency tables

Date: 2025-09-19:

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 12690 5041 52 9 0 0 0 0
OW 0 798 280 498 45 0 0 0
VODI 0 64 75 949 611 18 0 0
ODI 0 15 9 126 799 259 0 0
CDI 0 2 3 65 434 6131 319 0
VCDI 0 0 0 0 18 3640 146 0
...date precedes bulletin

Date: 2025-09-21:

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 12939 4834 23 1 0 0 0 0
OW 0 800 300 461 28 0 0 0
VODI 0 79 89 806 703 34 0 0
ODI 0 19 13 124 535 555 5 0
CDI 0 0 5 38 252 3120 591 0
VCDI 0 0 0 0 0 4229 2513 0
...date precedes bulletin

Date: 2025-09-23:

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 12384 5464 100 64 0 0 0 0
OW 0 212 212 688 24 0 0 0
VODI 0 4 8 539 485 17 0 0
ODI 0 0 0 48 664 187 0 0
CDI 0 0 0 0 302 1413 113 0
VCDI 0 0 0 0 12 2020 7242 894
...date precedes bulletin

Date: 2025-09-25:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-09-27:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-09-29:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2025-10-01:

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 11854 5755 231 183 0 0 0 0
OW 0 165 139 579 33 0 0 0
VODI 0 0 8 363 317 0 0 0
ODI 0 0 0 41 410 46 0 0
CDI 0 0 0 4 456 775 15 0
VCDI 0 0 0 0 109 4201 7219 193
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11854 5129 117 129 0 0 0 0
OW 0 590 144 424 114 1 0 0
VODI 0 170 85 326 386 129 6 0
ODI 0 30 23 175 295 304 46 0
CDI 0 1 9 99 362 928 265 0
VCDI 0 0 0 17 168 3660 6917 193

Date: 2025-10-03:

Best estimate Forecast
...observations not yet available ...observations not yet available


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