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

Validation of sea ice concentration - European sector

Reference date: 2025-12-11

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-12-05:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 86313 9640 233 258 52 0 0 0
OW 16 130 43 203 138 5 0 0
VODI 5 124 97 239 220 52 2 0
ODI 0 43 42 297 423 215 30 0
CDI 0 0 0 14 176 537 403 0
VCDI 0 0 0 0 11 959 7608 553

Date: 2025-12-07:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 85464 10130 216 262 61 1 0 0
OW 17 178 97 163 132 27 0 0
VODI 2 111 124 296 240 69 1 0
ODI 0 29 34 275 384 249 9 0
CDI 0 0 1 11 218 611 289 0
VCDI 0 0 0 0 7 723 7888 762

Date: 2025-12-09:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 85271 10038 236 265 88 2 0 0
OW 16 220 70 145 125 32 0 0
VODI 5 116 115 267 215 83 0 0
ODI 0 11 23 250 524 247 28 0
CDI 0 0 2 13 196 756 260 0
VCDI 0 0 0 0 1 507 7011 1943

Date: 2025-12-11:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 82342 12350 351 353 70 0 0 0
OW 49 297 59 109 111 8 0 0
VODI 8 214 116 172 212 64 0 0
ODI 0 29 56 300 409 271 40 0
CDI 0 0 2 50 353 682 443 0
VCDI 0 0 0 0 26 1040 6617 1878

Date: 2025-12-13:

Best estimate
...observations not yet available

Date: 2025-12-15:

Best estimate
...observations not yet available

Date: 2025-12-17:

Best estimate
...observations not yet available

Date: 2025-12-19:

Best estimate
...observations not yet available


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