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: 2025-06-19

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-06-13:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 77817 13529 406 433 3 0 0 0
OW 0 281 103 386 12 0 0 0
VODI 0 302 114 887 492 6 0 0
ODI 0 262 152 910 1826 669 93 0
CDI 0 1 1 18 229 1614 2622 1
VCDI 0 0 0 0 0 138 2143 3638

Date: 2025-06-15:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 79221 12326 425 539 0 0 0 0
OW 0 233 46 463 8 0 0 0
VODI 0 331 129 903 570 20 0 0
ODI 0 213 127 891 1655 663 63 0
CDI 0 1 0 9 256 1481 2171 2
VCDI 0 0 0 0 0 72 2298 3972

Date: 2025-06-17:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 80194 11738 412 495 4 0 0 0
OW 0 239 81 510 13 0 0 0
VODI 0 291 138 1051 561 25 0 0
ODI 0 185 102 731 1531 424 41 0
CDI 0 0 0 5 244 1473 1507 0
VCDI 0 0 0 0 0 70 3154 3869

Date: 2025-06-19:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 80985 11513 459 410 3 0 0 0
OW 0 306 101 462 16 0 0 0
VODI 0 245 107 1017 532 18 0 0
ODI 0 154 105 628 1288 455 52 0
CDI 0 0 0 4 380 1200 1369 6
VCDI 0 0 0 0 14 220 3212 3827

Date: 2025-06-21:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 81999 11043 402 404 2 0 0 0
OW 0 294 90 469 9 0 0 0
VODI 0 252 123 1006 423 28 0 0
ODI 0 125 96 539 1332 313 45 0
CDI 0 0 0 8 367 1875 753 0
VCDI 0 0 0 0 9 183 3322 3577

Date: 2025-06-23:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 82213 11166 466 413 1 0 0 0
OW 0 249 102 607 6 0 0 0
VODI 0 193 133 737 537 13 0 0
ODI 0 60 51 522 1357 320 26 0
CDI 0 0 0 28 371 1673 855 0
VCDI 0 0 0 0 3 167 2644 4175

Date: 2025-06-25:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 82336 11518 477 514 1 0 0 0
OW 0 190 102 511 21 0 0 0
VODI 0 130 93 656 548 16 3 0
ODI 0 42 38 474 1242 346 82 0
CDI 0 0 0 20 367 1393 1254 0
VCDI 0 0 0 0 0 666 4893 1155

Date: 2025-06-27:

Best estimate
...observations not yet available


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