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

Validation of sea ice concentration - European sector

Bulletin date: 2023-12-28

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

Model vs. observations, sea ice class contingency tables

Date: 2023-12-22:

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 76074 13006 396 484 224 218 260 0
OW 65 884 173 377 303 84 23 0
VODI 0 516 155 498 613 197 37 0
ODI 0 145 68 418 1065 397 47 0
CDI 0 89 45 186 970 1386 251 62
VCDI 0 60 61 329 898 8054 28363 49567
...date precedes bulletin

Date: 2023-12-24:

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 75928 12877 350 394 213 237 184 0
OW 91 750 176 349 330 78 30 0
VODI 1 479 161 408 599 275 25 0
ODI 0 187 62 362 920 516 53 0
CDI 0 123 34 228 952 1165 295 56
VCDI 0 130 84 257 710 7723 29420 49836
...date precedes bulletin

Date: 2023-12-26:

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 74056 15210 269 278 133 185 181 0
OW 68 728 181 286 139 31 17 0
VODI 1 338 176 579 422 101 17 0
ODI 2 133 80 340 828 297 37 0
CDI 0 69 68 213 853 1595 215 0
VCDI 0 35 38 158 950 7901 28816 51024
...date precedes bulletin

Date: 2023-12-28:

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 76322 12565 165 240 101 139 203 0
OW 74 984 155 212 115 26 28 0
VODI 0 553 171 402 353 162 22 0
ODI 0 168 96 348 691 346 29 0
CDI 0 130 62 155 743 1199 206 9
VCDI 0 146 88 290 1048 8057 29253 50992
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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-12-30:

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 75117 12987 231 294 98 115 213 0
OW 74 1170 168 179 123 28 40 0
VODI 0 634 199 416 256 100 35 0
ODI 0 248 94 366 531 251 43 0
CDI 0 154 54 173 634 848 194 0
VCDI 0 196 104 399 1081 7723 27584 53894
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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-01-01:

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 74321 13473 248 287 170 133 193 0
OW 75 994 88 197 116 25 35 0
VODI 4 736 169 350 249 104 42 0
ODI 2 300 116 224 337 239 51 0
CDI 1 162 71 248 602 671 147 9
VCDI 0 184 109 375 1209 7646 31492 50844
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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-01-03:

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 74360 13207 186 196 130 108 205 0
OW 74 727 109 169 116 36 31 0
VODI 3 542 176 380 335 77 32 0
ODI 2 281 115 302 420 257 57 0
CDI 0 162 66 324 560 730 206 0
VCDI 0 155 116 420 1413 8279 36073 45911
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 0 0 0
ODI 0 0 0 0 0 0 0 0
CDI 0 0 0 0 0 0 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-01-05:

Best estimate Forecast
...observations not yet available ...observations not yet available


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