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

Validation of sea ice concentration - American sector

Bulletin date: 2024-01-04

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

Model vs. observations, sea ice class contingency tables

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 297 31 21 3 0 0 0
OW 5 359 40 130 57 0 0 0
VODI 0 142 28 172 261 32 0 0
ODI 0 9 2 60 393 107 3 0
CDI 0 0 0 22 196 507 43 2
VCDI 0 0 0 32 163 2838 10385 29526
...date precedes bulletin

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 61 18 43 25 0 0 0
OW 0 229 79 136 41 0 0 0
VODI 0 151 26 204 204 25 0 0
ODI 0 22 8 47 343 124 7 0
CDI 0 0 0 4 217 405 79 0
VCDI 0 0 0 4 172 2474 9274 31444
...date precedes bulletin

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 49 8 16 8 0 0 0
OW 0 38 67 94 81 0 0 0
VODI 0 10 17 149 186 7 0 0
ODI 0 0 0 97 140 113 0 0
CDI 0 0 0 29 94 795 32 0
VCDI 0 0 0 0 269 3217 12983 27367
...date precedes bulletin

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 14 0 0 0 0
OW 0 0 0 23 38 0 0 0
VODI 0 0 0 59 241 6 0 0
ODI 0 0 0 17 326 89 0 0
CDI 0 0 0 26 249 413 23 0
VCDI 0 0 0 60 351 3903 13437 26591
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 10 4 0 0 0
OW 0 0 0 26 29 0 0 0
VODI 0 0 0 57 215 6 0 0
ODI 0 0 0 21 319 82 0 0
CDI 0 0 0 22 263 499 40 0
VCDI 0 0 0 63 375 3824 13420 26591

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 8 6 0 0
VODI 0 0 0 0 20 52 0 0
ODI 0 0 0 0 132 168 0 0
CDI 0 0 0 0 138 438 25 0
VCDI 0 0 0 0 528 3217 11354 29780
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 7 5 0 0
VODI 0 0 0 0 33 52 0 0
ODI 0 0 0 0 101 155 0 0
CDI 0 0 0 0 144 462 26 1
VCDI 0 0 0 0 541 3207 11353 29779

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 5 0 1 0
ODI 0 0 0 0 57 34 10 0
CDI 0 0 0 0 121 546 28 3
VCDI 0 0 0 0 511 3205 12839 28506
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 30 14 18 0
ODI 0 0 0 0 14 90 10 0
CDI 0 0 0 0 97 364 38 0
VCDI 0 0 0 0 553 3317 12812 28509

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 47 11 0
ODI 0 0 0 0 0 40 10 0
CDI 0 0 0 0 42 216 45 21
VCDI 0 0 0 0 397 2999 11066 30972
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 56 11 0
ODI 0 0 0 0 0 62 12 0
CDI 0 0 0 0 27 243 66 16
VCDI 0 0 0 0 412 2941 11043 30977

Date: :

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 16 51 5 0
ODI 0 0 0 0 39 50 7 0
CDI 0 0 0 0 273 131 42 0
VCDI 0 0 0 0 667 3472 11519 29594
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 0 0 0 0 9 0 0
OW 0 0 0 0 18 46 3 0
VODI 0 0 0 0 17 59 9 0
ODI 0 0 0 0 45 79 20 1
CDI 0 0 0 0 230 272 146 36
VCDI 0 0 0 0 685 3239 11395 29557


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