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

Validation of sea ice concentration - Full domain

Reference date: 2025-11-13

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-11-07:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 103900 14353 514 862 124 5 0 0
OW 9 388 147 518 596 72 0 0
VODI 1 365 148 420 478 231 6 0
ODI 0 127 129 515 801 446 58 0
CDI 0 2 3 103 611 1354 501 4
VCDI 0 0 0 8 311 4142 29208 25554

Date: 2025-11-09:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 102270 14870 510 852 166 5 0 0
OW 30 381 100 554 581 48 0 0
VODI 12 358 121 404 545 284 24 0
ODI 2 250 127 483 719 383 105 0
CDI 0 6 7 122 755 1544 429 2
VCDI 0 0 0 3 61 3802 28234 27865

Date: 2025-11-11:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 101525 14202 475 978 543 6 0 0
OW 13 350 80 248 650 95 0 0
VODI 3 467 134 324 583 311 1 0
ODI 0 134 103 376 910 538 46 0
CDI 0 2 5 80 580 1832 588 12
VCDI 0 1 0 7 49 3386 24151 33226

Date: 2025-11-13:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 99398 15247 559 989 556 14 0 0
OW 18 356 89 259 365 109 0 0
VODI 11 525 121 326 548 244 3 0
ODI 0 220 133 409 715 369 31 0
CDI 0 39 47 201 516 1694 368 4
VCDI 0 5 6 26 153 4974 24873 32494

Date: 2025-11-15:

Best estimate
...observations not yet available

Date: 2025-11-17:

Best estimate
...observations not yet available

Date: 2025-11-19:

Best estimate
...observations not yet available

Date: 2025-11-21:

Best estimate
...observations not yet available


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