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: 2025-10-02

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-09-26:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97251 4062 54 61 1 0 0 0
OW 0 119 45 57 16 0 0 0
VODI 0 74 52 163 170 9 0 0
ODI 0 4 3 73 217 83 0 0
CDI 0 0 0 5 187 749 170 0
VCDI 0 0 0 0 3 874 4319 264

Date: 2025-09-28:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97088 4184 65 71 1 0 0 0
OW 0 147 50 59 26 0 0 0
VODI 0 50 41 177 135 7 0 0
ODI 0 0 0 48 228 83 1 0
CDI 0 0 0 3 170 798 147 0
VCDI 0 0 0 0 9 905 4371 221

Date: 2025-09-30:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 96931 4018 92 149 47 0 0 0
OW 0 102 27 65 54 2 0 0
VODI 0 7 25 73 188 37 0 0
ODI 0 0 1 26 105 166 3 0
CDI 0 0 0 6 85 515 102 0
VCDI 0 0 0 0 0 744 5030 485

Date: 2025-10-02:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97146 3891 66 115 54 9 0 0
OW 0 80 28 42 29 11 0 0
VODI 0 43 31 74 92 34 1 0
ODI 0 5 11 51 86 112 11 0
CDI 0 3 3 18 101 360 59 0
VCDI 0 0 0 1 43 883 5252 340

Date: 2025-10-04:

Best estimate
...observations not yet available

Date: 2025-10-06:

Best estimate
...observations not yet available

Date: 2025-10-08:

Best estimate
...observations not yet available

Date: 2025-10-10:

Best estimate
...observations not yet available


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