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

Validation of sea ice concentration - Asian sector

Reference date: 2025-08-21

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-08-15:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8178 7488 278 199 5 0 0 0
OW 0 685 170 425 55 1 0 0
VODI 0 40 118 1019 557 61 0 0
ODI 0 0 0 343 5264 5799 41 0
CDI 0 0 0 0 143 1158 42 0
VCDI 0 0 0 0 1 9 1 0

Date: 2025-08-17:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8921 6933 280 239 8 0 0 0
OW 11 695 186 400 100 0 0 0
VODI 0 41 125 965 890 5 0 0
ODI 0 0 0 247 6642 3648 46 0
CDI 0 0 0 1 213 1416 34 0
VCDI 0 0 0 0 2 28 4 0

Date: 2025-08-19:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9443 6744 302 282 25 0 0 0
OW 4 671 161 406 119 0 0 0
VODI 0 20 72 920 943 20 0 0
ODI 0 0 0 192 5836 2574 0 0
CDI 0 0 0 2 559 2555 18 0
VCDI 0 0 0 0 13 198 1 0

Date: 2025-08-21:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 10753 5659 311 306 19 2 0 0
OW 3 602 170 478 91 19 0 0
VODI 0 13 49 877 895 36 0 0
ODI 0 0 0 195 5034 2505 15 0
CDI 0 0 0 1 1205 2494 80 0
VCDI 0 0 0 0 32 236 0 0

Date: 2025-08-23:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 10899 5689 306 271 31 3 0 0
OW 0 642 152 453 89 12 0 0
VODI 0 28 77 882 825 43 0 0
ODI 0 0 0 312 5545 2782 0 0
CDI 0 0 0 0 679 2222 32 0
VCDI 0 0 0 0 16 89 1 0

Date: 2025-08-25:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11055 5712 307 299 12 0 0 0
OW 0 553 173 461 80 1 0 0
VODI 0 18 77 1009 785 12 0 0
ODI 0 0 1 442 5553 2851 0 0
CDI 0 0 0 2 462 2182 0 0
VCDI 0 0 0 0 3 30 0 0

Date: 2025-08-27:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11213 5827 279 240 24 0 0 0
OW 0 516 169 418 87 11 0 0
VODI 0 29 84 870 725 62 0 0
ODI 0 0 4 368 5321 3485 18 0
CDI 0 0 0 2 285 1979 54 0
VCDI 0 0 0 0 0 10 0 0

Date: 2025-08-29:

Best estimate
...observations not yet available


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