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

Validation of sea ice concentration - European sector

Bulletin date: 2023-11-09

Data source: OSI SAF N.H. multi-product sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2023-11-03:

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 80818 5680 159 238 24 32 0 0
OW 19 193 151 347 126 33 0 0
VODI 2 11 19 304 230 28 0 0
ODI 0 0 1 92 341 59 0 0
CDI 0 0 0 24 420 341 58 0
VCDI 0 0 0 0 63 750 5358 4495
...date precedes bulletin

Date: 2023-11-05:

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 80323 5941 147 229 19 0 0 0
OW 25 356 95 283 136 33 0 0
VODI 7 49 88 207 186 20 0 0
ODI 0 4 15 127 262 54 0 0
CDI 0 0 2 86 369 523 22 0
VCDI 0 0 0 9 123 1204 5260 4212
...date precedes bulletin

Date: 2023-11-07:

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 79810 6219 183 248 59 0 0 0
OW 60 307 156 249 89 29 0 0
VODI 6 5 51 294 211 15 0 0
ODI 0 0 0 103 311 58 0 0
CDI 0 0 0 62 266 686 135 0
VCDI 0 0 0 0 41 911 5795 4057
...date precedes bulletin

Date: 2023-11-09:

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 78576 6828 177 328 45 0 0 0
OW 52 376 128 315 132 39 0 0
VODI 0 31 58 285 218 59 7 0
ODI 0 0 4 118 289 90 0 0
CDI 0 0 0 62 258 731 267 0
VCDI 0 0 0 0 46 749 6392 3756
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 78554 6844 186 357 52 0 0 0
OW 73 347 123 293 139 30 0 0
VODI 1 44 53 271 236 66 7 0
ODI 0 0 5 117 273 113 0 0
CDI 0 0 0 70 233 672 191 0
VCDI 0 0 0 0 55 787 6468 3756

Date: 2023-11-11:

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 77516 7267 204 294 51 0 0 0
OW 73 479 151 365 181 44 0 0
VODI 20 66 62 311 201 123 4 0
ODI 0 2 4 141 213 142 0 0
CDI 0 0 0 59 255 765 190 0
VCDI 0 0 0 0 44 810 6724 3655
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 77494 7299 224 381 65 0 0 0
OW 74 436 118 279 182 50 0 0
VODI 41 77 74 302 211 109 4 0
ODI 0 2 5 140 190 176 0 0
CDI 0 0 0 68 251 734 175 0
VCDI 0 0 0 0 46 815 6739 3655

Date: 2023-11-13:

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 77163 7152 247 260 30 0 0 0
OW 28 437 230 358 136 14 0 0
VODI 14 40 29 714 165 45 0 0
ODI 0 1 0 170 421 104 0 0
CDI 0 0 0 10 333 960 54 0
VCDI 0 0 0 0 9 542 7146 3604
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 77114 7015 279 335 35 0 0 0
OW 72 449 145 450 183 38 0 0
VODI 19 146 75 462 212 74 0 0
ODI 0 20 7 168 285 101 0 0
CDI 0 0 0 97 329 770 51 0
VCDI 0 0 0 0 50 682 7149 3604

Date: 2023-11-15:

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 75405 8001 272 491 154 0 0 0
OW 21 305 171 379 334 15 0 0
VODI 0 57 48 391 464 35 0 0
ODI 0 0 6 134 497 88 0 0
CDI 0 0 0 44 439 826 14 0
VCDI 0 0 0 0 24 1026 7139 3636
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75393 7822 245 418 160 0 0 0
OW 33 391 158 399 357 39 0 0
VODI 0 137 71 335 511 69 0 0
ODI 0 13 21 185 406 119 0 0
CDI 0 0 2 98 433 683 20 0
VCDI 0 0 0 4 45 1080 7133 3636

Date: 2023-11-17:

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 74625 8293 258 459 84 0 0 0
OW 18 340 194 529 209 57 0 0
VODI 0 49 48 448 382 35 0 0
ODI 0 2 7 141 540 103 0 0
CDI 0 0 0 68 550 842 70 0
VCDI 0 0 0 0 69 738 7429 3829
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 74616 8108 218 510 126 0 0 0
OW 27 418 197 308 286 95 0 0
VODI 0 142 77 478 374 87 0 0
ODI 0 16 10 270 448 135 0 0
CDI 0 0 5 74 514 669 81 0
VCDI 0 0 0 5 86 789 7418 3829


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