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

Validation of sea ice concentration - Full domain

Bulletin date: 2025-02-11

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

Model vs. observations, sea ice class contingency tables

Date: 2025-02-11:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 17929 14753 75 310 5 0 0 0
OW 1 456 27 166 4 5 0 0
VODI 0 683 45 401 27 2 0 0
ODI 0 506 69 636 129 25 11 0
CDI 0 307 57 948 662 487 434 252
VCDI 0 62 13 867 3092 7169 19525 64405

Date: 2025-02-13:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16293 16737 128 916 111 1 0 0
OW 0 224 12 140 49 0 0 0
VODI 0 340 21 242 85 1 0 0
ODI 0 241 21 265 120 48 15 27
CDI 0 177 22 418 411 533 441 411
VCDI 0 235 19 1068 2982 7893 23523 60375

Date: 2025-02-15:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16771 16120 113 1133 290 13 0 0
OW 0 178 19 118 91 10 0 0
VODI 2 229 12 189 143 16 0 0
ODI 0 187 14 139 129 33 33 20
CDI 0 147 18 280 336 460 434 336
VCDI 0 195 42 1004 2222 7904 27977 57188

Date: 2025-02-17:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 17113 15918 147 1258 306 8 0 0
OW 0 148 11 108 69 8 0 0
VODI 0 210 12 186 135 8 0 0
ODI 0 188 10 152 160 29 17 2
CDI 0 271 23 259 378 372 516 340
VCDI 0 352 52 850 1997 5697 25442 61793


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