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: 2025-12-04

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-11-28:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 94 3236 142 151 31 0 0 0
OW 0 164 60 114 94 1 0 0
VODI 0 126 40 90 127 35 0 0
ODI 0 85 51 137 303 145 13 0
CDI 0 10 6 66 229 482 329 3
VCDI 0 0 0 0 6 1287 9823 14602

Date: 2025-11-30:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 320 3423 59 60 0 0 0 0
OW 0 162 58 68 2 0 0 0
VODI 0 146 45 111 21 0 0 0
ODI 0 318 63 170 135 15 1 0
CDI 0 102 31 99 272 452 59 1
VCDI 0 0 0 6 109 2504 8747 14523

Date: 2025-12-02:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 172 3126 128 145 33 1 0 0
OW 0 55 33 62 76 1 0 0
VODI 0 62 34 106 108 12 0 0
ODI 0 286 59 214 284 26 0 0
CDI 0 109 15 43 249 628 96 2
VCDI 0 3 0 0 25 2273 10858 12758

Date: 2025-12-04:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 39 2512 195 328 67 0 0 0
OW 0 18 15 93 147 0 0 0
VODI 0 12 23 87 145 10 0 0
ODI 0 9 12 115 671 172 0 0
CDI 0 4 2 18 304 551 198 0
VCDI 0 0 0 3 27 1540 9999 14766

Date: 2025-12-06:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 8 2287 143 223 61 0 0 0
OW 0 16 23 143 203 4 0 0
VODI 0 11 15 80 163 20 0 0
ODI 0 6 11 60 323 97 0 0
CDI 0 0 0 9 399 850 211 0
VCDI 0 0 0 1 63 1719 14221 10712

Date: 2025-12-08:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5 2299 128 138 43 0 0 0
OW 0 63 34 114 122 18 0 0
VODI 0 61 30 90 85 76 0 0
ODI 0 23 44 123 135 92 0 0
CDI 0 0 1 33 223 587 94 0
VCDI 0 0 0 0 53 2079 13695 11594

Date: 2025-12-10:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 2041 88 163 60 3 0 0
OW 0 62 15 72 140 8 0 0
VODI 0 24 22 97 137 80 0 0
ODI 0 4 10 81 149 144 0 0
CDI 0 0 0 28 225 464 105 0
VCDI 0 0 0 3 22 1662 13373 12800

Date: 2025-12-12:

Best estimate
...observations not yet available


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