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: 2025-11-06

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-10-31:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 93416 5453 41 30 7 0 0 0
OW 0 300 55 35 8 1 0 0
VODI 0 77 85 127 42 13 1 0
ODI 0 7 16 110 178 88 7 0
CDI 0 0 1 15 197 580 140 0
VCDI 0 0 0 0 12 1013 6735 295

Date: 2025-11-02:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 93016 5863 96 54 9 2 0 0
OW 0 127 57 57 20 3 0 0
VODI 0 53 50 129 79 26 0 0
ODI 0 0 6 82 188 142 3 0
CDI 0 0 0 2 78 422 155 0
VCDI 0 0 0 0 2 996 6966 402

Date: 2025-11-04:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 93200 5605 80 86 16 0 0 0
OW 0 111 51 60 46 2 0 0
VODI 0 75 31 101 102 40 0 0
ODI 0 9 11 58 131 139 2 0
CDI 0 1 1 12 88 442 171 0
VCDI 0 0 0 0 21 1273 6839 281

Date: 2025-11-06:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 92248 6434 88 98 9 0 0 0
OW 0 123 42 88 47 2 0 0
VODI 0 68 47 98 92 31 0 0
ODI 0 3 15 73 148 130 4 0
CDI 0 0 0 8 65 427 167 0
VCDI 0 0 0 0 3 1694 6262 571

Date: 2025-11-08:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 92513 5899 124 90 16 0 0 0
OW 0 82 38 126 44 6 0 0
VODI 0 66 34 116 74 15 0 0
ODI 0 6 9 71 157 62 3 0
CDI 0 0 2 11 111 426 120 0
VCDI 0 0 0 0 12 1635 6534 683

Date: 2025-11-10:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 91268 7148 112 80 8 0 0 0
OW 0 106 33 79 28 0 0 0
VODI 0 71 48 107 59 11 0 0
ODI 0 5 17 119 153 23 0 0
CDI 0 0 1 23 199 419 67 0
VCDI 0 0 0 0 9 1312 7349 231

Date: 2025-11-12:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 91190 6856 102 165 65 4 0 0
OW 0 81 20 47 44 5 0 0
VODI 0 59 27 85 109 42 0 0
ODI 0 9 18 86 170 112 4 0
CDI 0 0 4 9 91 429 162 0
VCDI 0 0 0 0 7 1096 7367 620

Date: 2025-11-14:

Best estimate
...observations not yet available


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